DC Hub — Data Center Site Selection & Colocation: Electricity, Power Grid, Gas, Fiber

Grid Scoreboard

get_grid_scoreboard

Read-onlyIdempotent

GLOBAL grid scoreboard — 9 US grid operators (PJM, ERCOT, CAISO, MISO, SPP, NYISO, ISO-NE, BPA, TVA) + Great Britain (NESO) + the European bidding zones (Germany, France, Netherlands, Italy/Milan, Spain, Poland, Switzerland, Portugal, the Nordics + Central/Eastern Europe — via ENTSO-E; the exact live-vs-configured count is in counts_basis.eu_zones_live / eu_zones_configured, measured per call rather than asserted here) + Taiwan (Taipower) + Japan (OCCTO areas) + South Korea (KPX) + Brazil SIN (ONS), ranked side-by-side on each feed's LATEST PUBLISHED reading: renewable share %, gas share %, full fuel mix (gas/nuclear/coal/wind/solar/hydro MW), and demand. ★FRESHNESS IS NOT UNIFORM and every row says so: each carries mix_period, mix_age_hours and freshness_basis. The US rows come from EIA hourly RTO, which publishes the FUEL-TYPE BREAKDOWN several hours behind aggregate demand — an overnight mix reading is routinely 18-24h old (it will show near-zero solar) while demand on the same row is ~1-2h old. Read mix_age_hours before narrating any row as current, and NEVER describe a row as the mix "right now" unless its mix_age_hours is small; demand_period and mix_period are separate clocks and the row reports both plus demand_vs_mix_lag_hours. One call answers "which grid worldwide is greenest, or most gas-reliant, for siting a data center?" — vs compare_isos (pairwise) or get_grid_data (single ISO). Every ranked grid scores renewable_share_pct as wind+solar+hydro (apples-to-apples across all feeds; geothermal is reported separately and, where it exists, also as renewable_share_incl_geothermal_pct — note get_grid_intelligence uses that geothermal-inclusive figure for US ISOs); Brazil ranks by renewable share but reports NO gas share (ONS bundles gas/coal/oil/biomass into one thermal figure — never presented as gas); Australia NEM (AEMO) + Singapore (EMA) are listed unranked in partial_grids (no full fuel split — kept honest). Source: US = EIA hourly RTO; GB = Elexon Insights; EU = ENTSO-E Transparency; TW = Taipower; JP = TSO eria_jukyu CSVs; KR = KPX real-time; BR = ONS Balanço de Energia; AU = AEMO NEM; SG = EMA NEMS — all live via DC Hub, greenest-first. Quote with attribution to DC Hub (CC-BY-4.0). Answers "which grid is cleanest right now", "how is ERCOT doing at this moment". Try: get_grid_scoreboard.

Input Schema

TableJSON Schema

Name	Required	Description	Default
No arguments

Output Schema

TableJSON Schema

Name	Required	Description
`ok`	No	true when the scoreboard build succeeded
`count`	No	Ranked grids — the long-standing alias of zones_ranked (NOT grids.length, which also carries the unrankable rows)
`grids`	No	Fully-ranked grids, greenest (highest renewable share) first — US ISOs + GB + EU zones + TW + JP + KR + BR
`quota`	No	Caller quota state (remaining calls, tier) when available.
`source`	No	Upstream feeds behind the rows in THIS response, generated (EIA hourly RTO, Elexon, ENTSO-E, Taipower, OCCTO, KPX, ONS, AEMO, EMA)
`_entity`	No	Payload class discriminator (e.g. facility\|market\|iso_grid\|queue_results\|deal\|report\|response) — branch on this before parsing the rest.
`citation`	No	Machine-readable citation: how to attribute DC Hub (dchub.cloud) for this payload. Normally an OBJECT {source, url, license, cite_as, retrieved_at}; a bare string is accepted and carries the attribution line itself.
`coverage`	No	Coverage line GENERATED from the rows that actually ranked — a feed that returned nothing is absent from it
`freshness`	No	Rows are each feed's LATEST PUBLISHED reading, NOT a synchronized snapshot: {basis, us_mix_source, stale_mix_threshold_hours, stale_mix_rows[], how_to_read}. Read this before narrating any row as current
`ranked_by`	No	Ranking criterion (renewable share = wind+solar+hydro, greenest first) plus the full definition — identical on every feed, geothermal and biomass excluded from the numerator
`provenance`	No	Collection-level provenance block: {source, method, as_of, verification_counts, cite_url_template, license, cite_as}. Quote the verification level when citing.
`_front_door`	No	In-band front-door hint (first workflow-entry tool of a session): call plan_query(intent) first for the ordered multi-step plan.
`_return_loop`	No	Suggested next-session delta call (get_changes since=24h) so you pull only what changed.
`counts_basis`	No	What each count actually counts, plus per_source rows, eu_zones_live vs eu_zones_configured, and the unranked/unavailable tallies
`zones_ranked`	No	Grid rows carrying a live renewable_share_pct, i.e. the ranked set
`partial_grids`	No	Grids listed UNRANKED because the feed has no full fuel split (Australia NEM, Singapore EMA)
`eu_gas_context`	No	EU gas-flow context: {active_countries, total_throughput_gwh_per_day, unit, source, note}
`deep_intelligence`	No	Pointers to the deeper per-ISO / per-site tools to call next
`independent_sources`	No	Distinct upstream feeds behind those rows — far below zones_ranked because every EU bidding zone comes from ONE feed (ENTSO-E). null when the per-source tally failed
`site_evaluation_handoff`	No	Pre-built follow-up calls (analyze_site / get_water_risk args) when the payload carries coordinates — an array of {tool, parameters, why} entries.
`us_interconnection_queue_gw`	No	Total queued generation across the 7 US ISO interconnection queues, GW

Schema Changelog

Changes observed during successful MCP inspections. Dates show when Glama detected each change.

Changed2 schema fields changedAug 21, 2026

removedInput schema / $schema

Removed value: -"http://json-schema.org/draft-07/schema#"

removedOutput schema / $schema

Removed value: -"http://json-schema.org/draft-07/schema#"

Changed5 schema fields changedAug 11, 2026

removedOutput schema / properties / citation / additionalProperties
```
Removed value: -{}
```

addedOutput schema / properties / citation / anyOf

Added value: +[
+  {
+    "additionalProperties": {},
+    "properties": {},
+    "type": "object"
+  },
+  {
+    "type": "string"
+  }
+]

changedOutput schema / properties / citation / description

Previous value: -"Machine-readable citation: how to attribute DC Hub (dchub.cloud) for this payload."New value: +"Machine-readable citation: how to attribute DC Hub (dchub.cloud) for this payload. Normally an OBJECT {source, url, license, cite_as, retrieved_at}; a bare string is accepted and carries the attribution line itself."

removedOutput schema / properties / citation / properties
```
Removed value: -{}
```
removedOutput schema / properties / citation / type
```
Removed value: -"object"
```

Changed4 schema fields changedAug 8, 2026

addedOutput schema / properties / freshness

Added value: +{
+  "anyOf": [
+    {
+      "additionalProperties": {},
+      "properties": {},
+      "type": "object"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "description": "Rows are each feed's LATEST PUBLISHED reading, NOT a synchronized snapshot: {basis, us_mix_source, stale_mix_threshold_hours, stale_mix_rows[], how_to_read}. Read this before narrating any row as current"
+}

changedOutput schema / properties / grids / anyOf

Previous value: -[
-  {
-    "items": {
-      "additionalProperties": {},
-      "properties": {
-        "avg_price_usd_per_mwh": {
-          "anyOf": [
-            {
-              "anyOf": [
-                {
-                  "type": "number"
-                },
-                {
-                  "type": "string"
-                }
-              ]
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "description": "Average wholesale price in USD/MWh (where the feed carries price)"
-        },
-        "country": {
-          "anyOf": [
-            {
-              "type": "string"
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "description": "Country (code or name)"
-        },
-        "demand_mw": {
-          "anyOf": [
-            {
-              "anyOf": [
-                {
-                  "type": "number"
-                },
-                {
-                  "type": "string"
-                }
-              ]
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "description": "Current demand in MW"
-        },
-        "fuel_mw": {
-          "anyOf": [
-            {
-              "additionalProperties": {},
-              "properties": {},
-              "type": "object"
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "description": "Fuel mix in MW, e.g. {gas, nuclear, coal, wind, solar, hydro, …}"
-        },
-        "gas_share_pct": {
-          "anyOf": [
-            {
-              "anyOf": [
-                {
-                  "type": "number"
-                },
-                {
-                  "type": "string"
-                }
-              ]
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "description": "Gas share of generation, % (null where the feed cannot honestly split gas out, e.g. Brazil ONS thermal)"
-        },
-        "generation_total_mw": {
-          "anyOf": [
-            {
-              "anyOf": [
-                {
-                  "type": "number"
-                },
-                {
-                  "type": "string"
-                }
-              ]
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "description": "Total generation in MW"
-        },
-        "iso": {
-          "anyOf": [
-            {
-              "type": "string"
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "description": "Grid operator / bidding-zone code, e.g. PJM, ERCOT, NESO, DE, JP-TOKYO"
-        },
-        "mix_period": {
-          "anyOf": [
-            {
-              "type": "string"
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "description": "Timestamp / period of the fuel-mix reading"
-        },
-        "note": {
-          "anyOf": [
-            {
-              "type": "string"
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "description": "Per-grid caveat"
-        },
-        "partial_feed": {
-          "description": "Set when the feed is partial (no full fuel split) — why the grid is unranked"
-        },
-        "region": {
-          "anyOf": [
-            {
-              "type": "string"
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "description": "Human-readable region name"
-        },
-        "renewable_share_pct": {
-          "anyOf": [
-            {
-              "anyOf": [
-                {
-                  "type": "number"
-                },
-                {
-                  "type": "string"
-                }
-              ]
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "description": "Wind+solar+hydro share of generation, % (the ranking key)"
-        },
-        "variable_renewable_pct": {
-          "anyOf": [
-            {
-              "anyOf": [
-                {
-                  "type": "number"
-                },
-                {
-                  "type": "string"
-                }
-              ]
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "description": "Wind+solar-only share, % (partial feeds)"
-        }
-      },
-      "type": "object"
-    },
-    "type": "array"
-  },
-  {
-    "type": "null"
-  }
-]New value: +[
+  {
+    "items": {
+      "additionalProperties": {},
+      "properties": {
+        "avg_price_usd_per_mwh": {
+          "anyOf": [
+            {
+              "anyOf": [
+                {
+                  "type": "number"
+                },
+                {
+                  "type": "string"
+                }
+              ]
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Average wholesale price in USD/MWh (where the feed carries price)"
+        },
+        "country": {
+          "anyOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Country (code or name)"
+        },
+        "demand_age_hours": {
+          "anyOf": [
+            {
+              "anyOf": [
+                {
+                  "type": "number"
+                },
+                {
+                  "type": "string"
+                }
+              ]
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Age of the demand reading against the current UTC clock"
+        },
+        "demand_mw": {
+          "anyOf": [
+            {
+              "anyOf": [
+                {
+                  "type": "number"
+                },
+                {
+                  "type": "string"
+                }
+              ]
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Current demand in MW"
+        },
+        "demand_period": {
+          "anyOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Period of the demand reading — a DIFFERENT clock from mix_period on US rows"
+        },
+        "demand_vs_mix_lag_hours": {
+          "anyOf": [
+            {
+              "anyOf": [
+                {
+                  "type": "number"
+                },
+                {
+                  "type": "string"
+                }
+              ]
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "How far the fuel mix trails demand WITHIN this row. Non-zero means the two figures are from different hours"
+        },
+        "freshness_basis": {
+          "anyOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Which clock the ages on this row are measured against"
+        },
+        "fuel_mw": {
+          "anyOf": [
+            {
+              "additionalProperties": {},
+              "properties": {},
+              "type": "object"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Fuel mix in MW, e.g. {gas, nuclear, coal, wind, solar, hydro, …}"
+        },
+        "gas_share_pct": {
+          "anyOf": [
+            {
+              "anyOf": [
+                {
+                  "type": "number"
+                },
+                {
+                  "type": "string"
+                }
+              ]
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Gas share of generation, % (null where the feed cannot honestly split gas out, e.g. Brazil ONS thermal)"
+        },
+        "generation_total_mw": {
+          "anyOf": [
+            {
+              "anyOf": [
+                {
+                  "type": "number"
+                },
+                {
+                  "type": "string"
+                }
+              ]
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Total generation in MW"
+        },
+        "iso": {
+          "anyOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Grid operator / bidding-zone code, e.g. PJM, ERCOT, NESO, DE, JP-TOKYO"
+        },
+        "mix_age_hours": {
+          "anyOf": [
+            {
+              "anyOf": [
+                {
+                  "type": "number"
+                },
+                {
+                  "type": "string"
+                }
+              ]
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "How old the fuel-mix reading is against the CURRENT UTC clock. US rows are routinely 18-24h overnight — check this before calling a row current"
+        },
+        "mix_is_stale": {
+          "anyOf": [
+            {
+              "type": "boolean"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Set when mix_age_hours is at or over the stale threshold — do not narrate this row as the mix \"right now\""
+        },
+        "mix_note": {
+          "anyOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Plain-language warning composed for a stale mix reading"
+        },
+        "mix_period": {
+          "anyOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Timestamp / period of the fuel-mix reading"
+        },
+        "mix_vs_demand_warning": {
+          "anyOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Present when generation and demand are hours apart: their difference is a clock gap, NOT net imports"
+        },
+        "note": {
+          "anyOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Per-grid caveat"
+        },
+        "partial_feed": {
+          "description": "Set when the feed is partial (no full fuel split) — why the grid is unranked"
+        },
+        "region": {
+          "anyOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Human-readable region name"
+        },
+        "renewable_definition": {
+          "anyOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Exactly what renewable_share_pct counts, identical on every ranked feed"
+        },
+        "renewable_share_incl_geothermal_pct": {
+          "anyOf": [
+            {
+              "anyOf": [
+                {
+                  "type": "number"
+                },
+                {
+                  "type": "string"
+                }
+              ]
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Same share WITH geothermal in the numerator — present only where geothermal > 0. This is the figure get_grid_intelligence publishes for US ISOs; renewable_share_pct above is the cross-feed-comparable one used for the ranking"
+        },
+        "renewable_share_pct": {
+          "anyOf": [
+            {
+              "anyOf": [
+                {
+                  "type": "number"
+                },
+                {
+                  "type": "string"
+                }
+              ]
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Wind+solar+hydro share of generation, % (the ranking key)"
+        },
+        "variable_renewable_pct": {
+          "anyOf": [
+            {
+              "anyOf": [
+                {
+                  "type": "number"
+                },
+                {
+                  "type": "string"
+                }
+              ]
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Wind+solar-only share, % (partial feeds)"
+        }
+      },
+      "type": "object"
+    },
+    "type": "array"
+  },
+  {
+    "type": "null"
+  }
+]

changedOutput schema / properties / partial_grids / anyOf

Previous value: -[
-  {
-    "items": {
-      "additionalProperties": {},
-      "properties": {
-        "avg_price_usd_per_mwh": {
-          "anyOf": [
-            {
-              "anyOf": [
-                {
-                  "type": "number"
-                },
-                {
-                  "type": "string"
-                }
-              ]
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "description": "Average wholesale price in USD/MWh (where the feed carries price)"
-        },
-        "country": {
-          "anyOf": [
-            {
-              "type": "string"
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "description": "Country (code or name)"
-        },
-        "demand_mw": {
-          "anyOf": [
-            {
-              "anyOf": [
-                {
-                  "type": "number"
-                },
-                {
-                  "type": "string"
-                }
-              ]
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "description": "Current demand in MW"
-        },
-        "fuel_mw": {
-          "anyOf": [
-            {
-              "additionalProperties": {},
-              "properties": {},
-              "type": "object"
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "description": "Fuel mix in MW, e.g. {gas, nuclear, coal, wind, solar, hydro, …}"
-        },
-        "gas_share_pct": {
-          "anyOf": [
-            {
-              "anyOf": [
-                {
-                  "type": "number"
-                },
-                {
-                  "type": "string"
-                }
-              ]
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "description": "Gas share of generation, % (null where the feed cannot honestly split gas out, e.g. Brazil ONS thermal)"
-        },
-        "generation_total_mw": {
-          "anyOf": [
-            {
-              "anyOf": [
-                {
-                  "type": "number"
-                },
-                {
-                  "type": "string"
-                }
-              ]
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "description": "Total generation in MW"
-        },
-        "iso": {
-          "anyOf": [
-            {
-              "type": "string"
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "description": "Grid operator / bidding-zone code, e.g. PJM, ERCOT, NESO, DE, JP-TOKYO"
-        },
-        "mix_period": {
-          "anyOf": [
-            {
-              "type": "string"
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "description": "Timestamp / period of the fuel-mix reading"
-        },
-        "note": {
-          "anyOf": [
-            {
-              "type": "string"
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "description": "Per-grid caveat"
-        },
-        "partial_feed": {
-          "description": "Set when the feed is partial (no full fuel split) — why the grid is unranked"
-        },
-        "region": {
-          "anyOf": [
-            {
-              "type": "string"
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "description": "Human-readable region name"
-        },
-        "renewable_share_pct": {
-          "anyOf": [
-            {
-              "anyOf": [
-                {
-                  "type": "number"
-                },
-                {
-                  "type": "string"
-                }
-              ]
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "description": "Wind+solar+hydro share of generation, % (the ranking key)"
-        },
-        "variable_renewable_pct": {
-          "anyOf": [
-            {
-              "anyOf": [
-                {
-                  "type": "number"
-                },
-                {
-                  "type": "string"
-                }
-              ]
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "description": "Wind+solar-only share, % (partial feeds)"
-        }
-      },
-      "type": "object"
-    },
-    "type": "array"
-  },
-  {
-    "type": "null"
-  }
-]New value: +[
+  {
+    "items": {
+      "additionalProperties": {},
+      "properties": {
+        "avg_price_usd_per_mwh": {
+          "anyOf": [
+            {
+              "anyOf": [
+                {
+                  "type": "number"
+                },
+                {
+                  "type": "string"
+                }
+              ]
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Average wholesale price in USD/MWh (where the feed carries price)"
+        },
+        "country": {
+          "anyOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Country (code or name)"
+        },
+        "demand_age_hours": {
+          "anyOf": [
+            {
+              "anyOf": [
+                {
+                  "type": "number"
+                },
+                {
+                  "type": "string"
+                }
+              ]
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Age of the demand reading against the current UTC clock"
+        },
+        "demand_mw": {
+          "anyOf": [
+            {
+              "anyOf": [
+                {
+                  "type": "number"
+                },
+                {
+                  "type": "string"
+                }
+              ]
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Current demand in MW"
+        },
+        "demand_period": {
+          "anyOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Period of the demand reading — a DIFFERENT clock from mix_period on US rows"
+        },
+        "demand_vs_mix_lag_hours": {
+          "anyOf": [
+            {
+              "anyOf": [
+                {
+                  "type": "number"
+                },
+                {
+                  "type": "string"
+                }
+              ]
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "How far the fuel mix trails demand WITHIN this row. Non-zero means the two figures are from different hours"
+        },
+        "freshness_basis": {
+          "anyOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Which clock the ages on this row are measured against"
+        },
+        "fuel_mw": {
+          "anyOf": [
+            {
+              "additionalProperties": {},
+              "properties": {},
+              "type": "object"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Fuel mix in MW, e.g. {gas, nuclear, coal, wind, solar, hydro, …}"
+        },
+        "gas_share_pct": {
+          "anyOf": [
+            {
+              "anyOf": [
+                {
+                  "type": "number"
+                },
+                {
+                  "type": "string"
+                }
+              ]
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Gas share of generation, % (null where the feed cannot honestly split gas out, e.g. Brazil ONS thermal)"
+        },
+        "generation_total_mw": {
+          "anyOf": [
+            {
+              "anyOf": [
+                {
+                  "type": "number"
+                },
+                {
+                  "type": "string"
+                }
+              ]
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Total generation in MW"
+        },
+        "iso": {
+          "anyOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Grid operator / bidding-zone code, e.g. PJM, ERCOT, NESO, DE, JP-TOKYO"
+        },
+        "mix_age_hours": {
+          "anyOf": [
+            {
+              "anyOf": [
+                {
+                  "type": "number"
+                },
+                {
+                  "type": "string"
+                }
+              ]
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "How old the fuel-mix reading is against the CURRENT UTC clock. US rows are routinely 18-24h overnight — check this before calling a row current"
+        },
+        "mix_is_stale": {
+          "anyOf": [
+            {
+              "type": "boolean"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Set when mix_age_hours is at or over the stale threshold — do not narrate this row as the mix \"right now\""
+        },
+        "mix_note": {
+          "anyOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Plain-language warning composed for a stale mix reading"
+        },
+        "mix_period": {
+          "anyOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Timestamp / period of the fuel-mix reading"
+        },
+        "mix_vs_demand_warning": {
+          "anyOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Present when generation and demand are hours apart: their difference is a clock gap, NOT net imports"
+        },
+        "note": {
+          "anyOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Per-grid caveat"
+        },
+        "partial_feed": {
+          "description": "Set when the feed is partial (no full fuel split) — why the grid is unranked"
+        },
+        "region": {
+          "anyOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Human-readable region name"
+        },
+        "renewable_definition": {
+          "anyOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Exactly what renewable_share_pct counts, identical on every ranked feed"
+        },
+        "renewable_share_incl_geothermal_pct": {
+          "anyOf": [
+            {
+              "anyOf": [
+                {
+                  "type": "number"
+                },
+                {
+                  "type": "string"
+                }
+              ]
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Same share WITH geothermal in the numerator — present only where geothermal > 0. This is the figure get_grid_intelligence publishes for US ISOs; renewable_share_pct above is the cross-feed-comparable one used for the ranking"
+        },
+        "renewable_share_pct": {
+          "anyOf": [
+            {
+              "anyOf": [
+                {
+                  "type": "number"
+                },
+                {
+                  "type": "string"
+                }
+              ]
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Wind+solar+hydro share of generation, % (the ranking key)"
+        },
+        "variable_renewable_pct": {
+          "anyOf": [
+            {
+              "anyOf": [
+                {
+                  "type": "number"
+                },
+                {
+                  "type": "string"
+                }
+              ]
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Wind+solar-only share, % (partial feeds)"
+        }
+      },
+      "type": "object"
+    },
+    "type": "array"
+  },
+  {
+    "type": "null"
+  }
+]

changedOutput schema / properties / ranked_by / description

Previous value: -"Ranking criterion (renewable share = wind+solar+hydro, greenest first)"New value: +"Ranking criterion (renewable share = wind+solar+hydro, greenest first) plus the full definition — identical on every feed, geothermal and biomass excluded from the numerator"

Changed6 schema fields changedJul 29, 2026

changedOutput schema / properties / count / description

Previous value: -"Number of fully-ranked grids in `grids`"New value: +"Ranked grids — the long-standing alias of zones_ranked (NOT grids.length, which also carries the unrankable rows)"

addedOutput schema / properties / counts_basis

Added value: +{
+  "anyOf": [
+    {
+      "additionalProperties": {},
+      "properties": {},
+      "type": "object"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "description": "What each count actually counts, plus per_source rows, eu_zones_live vs eu_zones_configured, and the unranked/unavailable tallies"
+}

changedOutput schema / properties / coverage / description

Previous value: -"Human-readable coverage line — which countries/grids are included"New value: +"Coverage line GENERATED from the rows that actually ranked — a feed that returned nothing is absent from it"

addedOutput schema / properties / independent_sources

Added value: +{
+  "anyOf": [
+    {
+      "anyOf": [
+        {
+          "type": "number"
+        },
+        {
+          "type": "string"
+        }
+      ]
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "description": "Distinct upstream feeds behind those rows — far below zones_ranked because every EU bidding zone comes from ONE feed (ENTSO-E). null when the per-source tally failed"
+}

changedOutput schema / properties / source / description

Previous value: -"Upstream feeds (EIA hourly RTO, Elexon, ENTSO-E, Taipower, OCCTO, KPX, ONS, AEMO, EMA)"New value: +"Upstream feeds behind the rows in THIS response, generated (EIA hourly RTO, Elexon, ENTSO-E, Taipower, OCCTO, KPX, ONS, AEMO, EMA)"

addedOutput schema / properties / zones_ranked

Added value: +{
+  "anyOf": [
+    {
+      "anyOf": [
+        {
+          "type": "number"
+        },
+        {
+          "type": "string"
+        }
+      ]
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "description": "Grid rows carrying a live renewable_share_pct, i.e. the ranked set"
+}

Changed1 schema field changedJul 21, 2026

addedOutput schema / properties / _front_door

Added value: +{
+  "additionalProperties": {},
+  "description": "In-band front-door hint (first workflow-entry tool of a session): call plan_query(intent) first for the ordered multi-step plan.",
+  "properties": {},
+  "type": "object"
+}

Changed16 schema fields changedJul 18, 2026

changedOutput schema / description

Previous value: -"DC Hub envelope: structuredContent mirrors the JSON payload in content[0].text — tool-specific data fields ride at the top level alongside these envelope keys."New value: +"Live global grid scoreboard: ranked `grids` + unranked `partial_grids`, fuel mix + demand right now, alongside the DC Hub envelope keys."

addedOutput schema / properties / count

Added value: +{
+  "anyOf": [
+    {
+      "anyOf": [
+        {
+          "type": "number"
+        },
+        {
+          "type": "string"
+        }
+      ]
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "description": "Number of fully-ranked grids in `grids`"
+}

addedOutput schema / properties / coverage

Added value: +{
+  "anyOf": [
+    {
+      "type": "string"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "description": "Human-readable coverage line — which countries/grids are included"
+}

addedOutput schema / properties / deep_intelligence

Added value: +{
+  "anyOf": [
+    {
+      "additionalProperties": {},
+      "properties": {},
+      "type": "object"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "description": "Pointers to the deeper per-ISO / per-site tools to call next"
+}

addedOutput schema / properties / eu_gas_context

Added value: +{
+  "anyOf": [
+    {
+      "additionalProperties": {},
+      "properties": {},
+      "type": "object"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "description": "EU gas-flow context: {active_countries, total_throughput_gwh_per_day, unit, source, note}"
+}

addedOutput schema / properties / grids

Added value: +{
+  "anyOf": [
+    {
+      "items": {
+        "additionalProperties": {},
+        "properties": {
+          "avg_price_usd_per_mwh": {
+            "anyOf": [
+              {
+                "anyOf": [
+                  {
+                    "type": "number"
+                  },
+                  {
+                    "type": "string"
+                  }
+                ]
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Average wholesale price in USD/MWh (where the feed carries price)"
+          },
+          "country": {
+            "anyOf": [
+              {
+                "type": "string"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Country (code or name)"
+          },
+          "demand_mw": {
+            "anyOf": [
+              {
+                "anyOf": [
+                  {
+                    "type": "number"
+                  },
+                  {
+                    "type": "string"
+                  }
+                ]
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Current demand in MW"
+          },
+          "fuel_mw": {
+            "anyOf": [
+              {
+                "additionalProperties": {},
+                "properties": {},
+                "type": "object"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Fuel mix in MW, e.g. {gas, nuclear, coal, wind, solar, hydro, …}"
+          },
+          "gas_share_pct": {
+            "anyOf": [
+              {
+                "anyOf": [
+                  {
+                    "type": "number"
+                  },
+                  {
+                    "type": "string"
+                  }
+                ]
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Gas share of generation, % (null where the feed cannot honestly split gas out, e.g. Brazil ONS thermal)"
+          },
+          "generation_total_mw": {
+            "anyOf": [
+              {
+                "anyOf": [
+                  {
+                    "type": "number"
+                  },
+                  {
+                    "type": "string"
+                  }
+                ]
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Total generation in MW"
+          },
+          "iso": {
+            "anyOf": [
+              {
+                "type": "string"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Grid operator / bidding-zone code, e.g. PJM, ERCOT, NESO, DE, JP-TOKYO"
+          },
+          "mix_period": {
+            "anyOf": [
+              {
+                "type": "string"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Timestamp / period of the fuel-mix reading"
+          },
+          "note": {
+            "anyOf": [
+              {
+                "type": "string"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Per-grid caveat"
+          },
+          "partial_feed": {
+            "description": "Set when the feed is partial (no full fuel split) — why the grid is unranked"
+          },
+          "region": {
+            "anyOf": [
+              {
+                "type": "string"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Human-readable region name"
+          },
+          "renewable_share_pct": {
+            "anyOf": [
+              {
+                "anyOf": [
+                  {
+                    "type": "number"
+                  },
+                  {
+                    "type": "string"
+                  }
+                ]
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Wind+solar+hydro share of generation, % (the ranking key)"
+          },
+          "variable_renewable_pct": {
+            "anyOf": [
+              {
+                "anyOf": [
+                  {
+                    "type": "number"
+                  },
+                  {
+                    "type": "string"
+                  }
+                ]
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Wind+solar-only share, % (partial feeds)"
+          }
+        },
+        "type": "object"
+      },
+      "type": "array"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "description": "Fully-ranked grids, greenest (highest renewable share) first — US ISOs + GB + EU zones + TW + JP + KR + BR"
+}

addedOutput schema / properties / ok

Added value: +{
+  "anyOf": [
+    {
+      "type": "boolean"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "description": "true when the scoreboard build succeeded"
+}

addedOutput schema / properties / partial_grids

Added value: +{
+  "anyOf": [
+    {
+      "items": {
+        "additionalProperties": {},
+        "properties": {
+          "avg_price_usd_per_mwh": {
+            "anyOf": [
+              {
+                "anyOf": [
+                  {
+                    "type": "number"
+                  },
+                  {
+                    "type": "string"
+                  }
+                ]
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Average wholesale price in USD/MWh (where the feed carries price)"
+          },
+          "country": {
+            "anyOf": [
+              {
+                "type": "string"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Country (code or name)"
+          },
+          "demand_mw": {
+            "anyOf": [
+              {
+                "anyOf": [
+                  {
+                    "type": "number"
+                  },
+                  {
+                    "type": "string"
+                  }
+                ]
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Current demand in MW"
+          },
+          "fuel_mw": {
+            "anyOf": [
+              {
+                "additionalProperties": {},
+                "properties": {},
+                "type": "object"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Fuel mix in MW, e.g. {gas, nuclear, coal, wind, solar, hydro, …}"
+          },
+          "gas_share_pct": {
+            "anyOf": [
+              {
+                "anyOf": [
+                  {
+                    "type": "number"
+                  },
+                  {
+                    "type": "string"
+                  }
+                ]
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Gas share of generation, % (null where the feed cannot honestly split gas out, e.g. Brazil ONS thermal)"
+          },
+          "generation_total_mw": {
+            "anyOf": [
+              {
+                "anyOf": [
+                  {
+                    "type": "number"
+                  },
+                  {
+                    "type": "string"
+                  }
+                ]
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Total generation in MW"
+          },
+          "iso": {
+            "anyOf": [
+              {
+                "type": "string"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Grid operator / bidding-zone code, e.g. PJM, ERCOT, NESO, DE, JP-TOKYO"
+          },
+          "mix_period": {
+            "anyOf": [
+              {
+                "type": "string"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Timestamp / period of the fuel-mix reading"
+          },
+          "note": {
+            "anyOf": [
+              {
+                "type": "string"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Per-grid caveat"
+          },
+          "partial_feed": {
+            "description": "Set when the feed is partial (no full fuel split) — why the grid is unranked"
+          },
+          "region": {
+            "anyOf": [
+              {
+                "type": "string"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Human-readable region name"
+          },
+          "renewable_share_pct": {
+            "anyOf": [
+              {
+                "anyOf": [
+                  {
+                    "type": "number"
+                  },
+                  {
+                    "type": "string"
+                  }
+                ]
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Wind+solar+hydro share of generation, % (the ranking key)"
+          },
+          "variable_renewable_pct": {
+            "anyOf": [
+              {
+                "anyOf": [
+                  {
+                    "type": "number"
+                  },
+                  {
+                    "type": "string"
+                  }
+                ]
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Wind+solar-only share, % (partial feeds)"
+          }
+        },
+        "type": "object"
+      },
+      "type": "array"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "description": "Grids listed UNRANKED because the feed has no full fuel split (Australia NEM, Singapore EMA)"
+}

addedOutput schema / properties / ranked_by

Added value: +{
+  "anyOf": [
+    {
+      "type": "string"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "description": "Ranking criterion (renewable share = wind+solar+hydro, greenest first)"
+}

removedOutput schema / properties / site_evaluation_handoff / additionalProperties
```
Removed value: -{}
```

addedOutput schema / properties / site_evaluation_handoff / anyOf

Added value: +[
+  {
+    "items": {
+      "additionalProperties": {},
+      "properties": {},
+      "type": "object"
+    },
+    "type": "array"
+  },
+  {
+    "additionalProperties": {},
+    "properties": {},
+    "type": "object"
+  }
+]

changedOutput schema / properties / site_evaluation_handoff / description

Previous value: -"Pre-built follow-up call (analyze_site / get_water_risk args) when the payload carries coordinates."New value: +"Pre-built follow-up calls (analyze_site / get_water_risk args) when the payload carries coordinates — an array of {tool, parameters, why} entries."

removedOutput schema / properties / site_evaluation_handoff / properties
```
Removed value: -{}
```
removedOutput schema / properties / site_evaluation_handoff / type
```
Removed value: -"object"
```

addedOutput schema / properties / source

Added value: +{
+  "anyOf": [
+    {
+      "type": "string"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "description": "Upstream feeds (EIA hourly RTO, Elexon, ENTSO-E, Taipower, OCCTO, KPX, ONS, AEMO, EMA)"
+}

addedOutput schema / properties / us_interconnection_queue_gw

Added value: +{
+  "anyOf": [
+    {
+      "anyOf": [
+        {
+          "type": "number"
+        },
+        {
+          "type": "string"
+        }
+      ]
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "description": "Total queued generation across the 7 US ISO interconnection queues, GW"
+}

Changed1 schema field changedJul 17, 2026

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "additionalProperties": {},
+  "description": "DC Hub envelope: structuredContent mirrors the JSON payload in content[0].text — tool-specific data fields ride at the top level alongside these envelope keys.",
+  "properties": {
+    "_entity": {
+      "description": "Payload class discriminator (e.g. facility|market|iso_grid|queue_results|deal|report|response) — branch on this before parsing the rest.",
+      "type": "string"
+    },
+    "_return_loop": {
+      "additionalProperties": {},
+      "description": "Suggested next-session delta call (get_changes since=24h) so you pull only what changed.",
+      "properties": {},
+      "type": "object"
+    },
+    "citation": {
+      "additionalProperties": {},
+      "description": "Machine-readable citation: how to attribute DC Hub (dchub.cloud) for this payload.",
+      "properties": {},
+      "type": "object"
+    },
+    "provenance": {
+      "additionalProperties": {},
+      "description": "Collection-level provenance block: {source, method, as_of, verification_counts, cite_url_template, license, cite_as}. Quote the verification level when citing.",
+      "properties": {},
+      "type": "object"
+    },
+    "quota": {
+      "additionalProperties": {},
+      "description": "Caller quota state (remaining calls, tier) when available.",
+      "properties": {},
+      "type": "object"
+    },
+    "site_evaluation_handoff": {
+      "additionalProperties": {},
+      "description": "Pre-built follow-up call (analyze_site / get_water_risk args) when the payload carries coordinates.",
+      "properties": {},
+      "type": "object"
+    }
+  },
+  "type": "object"
+}

AddedMay 31, 2026

TDQS

A4.7/5.0

Behavior5/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Beyond the readOnly/idempotent annotations, the description discloses important behavioral traits: freshness is not uniform, rows carry mix_age_hours/freshness_basis, and the US EIA data has a known lag. It explicitly instructs the agent to read mix_age_hours before narrating any row as current, and explains that some grids are listed unranked in partial_grids. No contradictions with annotations.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness3/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single dense paragraph that packs in a wealth of information, but it is overlong and would benefit from structured bullets or sections. The repeated 'answers' phrases and trailing 'Try: get_grid_scoreboard' add redundancy, though the opening efficiently states the tool's global scope.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

The description covers freshness caveats, partial coverage, regional anomalies, data sources, attribution, and clear use cases. Combined with the presence of an output schema, an agent has everything needed to call and correctly interpret the tool without additional lookups.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema has zero parameters, so no parameter-specific documentation is needed; the schema coverage is 100% by definition. The description instead adds value by explaining output field semantics (mix_age_hours, demand_vs_mix_lag_hours, renewable_share_pct), which is above the baseline for a no-parameter tool.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description immediately identifies the tool as a global grid scoreboard, enumerates all covered regions, and specifies the ranked metrics (renewable share %, gas share %, fuel mix, demand). It also differentiates itself from siblings by explicitly contrasting with compare_isos (pairwise) and get_grid_data (single ISO), leaving no ambiguity about what the tool returns.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description states concrete use cases: answering 'which grid worldwide is greenest, or most gas-reliant, for siting a data center?' and 'which grid is cleanest right now'. It also gives exclusion criteria by naming alternatives (compare_isos for pairwise, get_grid_data for single ISO) and warns about edge cases like Brazil having no gas share and AU/SG being unranked.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

All DC Hub — Data Center Site Selection & Colocation: Electricity, Power Grid, Gas, Fiber tools Inspect

Try in Browser

RayrunBuild, deploy, and operate MCP servers without becoming an infrastructure team.ray.runAd

Glama MCP Gateway

Add one secure layer between your agents and this server.

TDQS

A4.1/5.0

Disambiguation4/5

Most tools have clearly distinct purposes despite some thematic overlap, and each description includes explicit 'Do NOT use' guidance to prevent misselection. However, a few pairs like search_intelligence vs semantic_search are nearly identical in function, and the sheer number of tools increases the chance of selecting the wrong one without careful reading.

Naming Consistency4/5

The vast majority of tools follow a predictable 'get_*' prefix for data reads, and many others use verb_noun patterns (analyze_*, rank_*, save_*, set_*). There are a handful of outliers like ai_capacity_index, grid_transition_radar, and site_selection_canvas that break the pattern, but overall the conventions are consistent enough for an agent to infer meaning.

Tool Count2/5

With 82 tools, this server is extremely heavy compared to typical MCP servers (3-15 tools). While the domain is broad, many tools serve narrow sub-purposes and could be consolidated (e.g., multiple site-scoring variants, multiple grid telemetry endpoints). The count overwhelms an agent's ability to choose efficiently and feels like over-fragmentation rather than necessary granularity.

Completeness4/5

The tool surface covers the full lifecycle of data-center siting intelligence: site analysis, grid, fiber, water, climate, tax, permitting, deals, news, saved-site management, and meta-planning. Minor gaps exist (e.g., no delete or update operations for saved sites), but the core workflows are well-supported and the descriptions are comprehensive.

Grid Scoreboard

Input Schema

Output Schema

Schema Changelog

TDQS

Glama MCP Gateway

TDQS

Resources