Nota Fiscal

marketplace

The official mcp.ai marketplace — the in-platform catalog of every MCP/tool, AND the way to run them. Covers capability requests like "find an MCP that does X", "consulta um CPF", "is there a tool for Y". Core flow: action=search discovers MCPs by intent → describe returns one MCP's full profile (every tool with its id + params, pricing, auth) so you pick the right tool_id → invoke RUNS that tool. KEY: invoke works even when the MCP is NOT installed — it runs the tool pontualmente (one-off), without adding the MCP to the toolkit and without bloating the tool list. If the MCP needs a credential/login, invoke returns a connect link; if it is paid and the wallet is empty, invoke returns a checkout/top-up link (the user opens it, then you retry). Use install only to make an MCP PERMANENT in the active toolkit (its tools then show up natively in future sessions); prefer invoke for a single/occasional use. list_tools lists what is callable right now. subscribe/cancel handle per-MCP billing; report_bug sends feedback; request_mcp asks us to build a NEW MCP when nothing fits. Search/describe flag installed_in_toolkit vs installed_in_workspace. Writes (install/uninstall/subscribe/cancel and the one-off install behind invoke) require workspace owner/admin. It also carries the mcp.ai PROMPT LIBRARY, which is about ready-made prompt TEXT rather than MCPs: search_prompts finds one, get_prompt returns its full text with {{variables}} filled, and publish_prompt saves a prompt and returns a shareable mcp.ai/p/ link that opens without login.

Input Schema

TableJSON Schema

Name	Required	Default
`limit`	No
`query`	No
`action`	No	search
`mcp_id`	No
`message`	No
`tool_id`	No
`arguments`	No	{}
`immediate`	No
`tier_slug`	No
`prompt_body`	No
`prompt_slug`	No
`prompt_tool`	No
`prompt_vars`	No	{}
`conversation`	No	[]
`prompt_title`	No
`request_name`	No
`cancel_reason`	No
`cancel_comment`	No
`prompt_targets`	No
`report_context`	No
`prompt_category`	No
`request_details`	No
`prompt_description`	No

Schema Changelog

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

Changed9 schema fields changedAug 10, 2026

changedInput schema / properties / action / enum

Previous value: -[
-  "search",
-  "describe",
-  "install",
-  "uninstall",
-  "subscribe",
-  "cancel",
-  "resume",
-  "report_bug",
-  "request_mcp",
-  "list_tools",
-  "invoke"
-]New value: +[
+  "search",
+  "describe",
+  "install",
+  "uninstall",
+  "subscribe",
+  "cancel",
+  "resume",
+  "report_bug",
+  "request_mcp",
+  "list_tools",
+  "invoke",
+  "search_prompts",
+  "get_prompt",
+  "publish_prompt"
+]

addedInput schema / properties / prompt_body

Added value: +{
+  "default": "",
+  "type": "string"
+}

addedInput schema / properties / prompt_category

Added value: +{
+  "default": "",
+  "type": "string"
+}

addedInput schema / properties / prompt_description

Added value: +{
+  "default": "",
+  "type": "string"
+}

addedInput schema / properties / prompt_slug

Added value: +{
+  "default": "",
+  "type": "string"
+}

addedInput schema / properties / prompt_targets

Added value: +{
+  "default": [],
+  "items": {
+    "enum": [
+      "claude",
+      "chatgpt",
+      "cursor",
+      "lovable"
+    ],
+    "type": "string"
+  },
+  "type": "array"
+}

addedInput schema / properties / prompt_title

Added value: +{
+  "default": "",
+  "type": "string"
+}

addedInput schema / properties / prompt_tool

Added value: +{
+  "default": "",
+  "type": "string"
+}

addedInput schema / properties / prompt_vars

Added value: +{
+  "default": "{}",
+  "type": "string"
+}

Changed1 schema field changedJul 29, 2026

changedInput schema / properties / action / enum

Previous value: -[
-  "search",
-  "describe",
-  "install",
-  "uninstall",
-  "subscribe",
-  "cancel",
-  "report_bug",
-  "request_mcp",
-  "list_tools",
-  "invoke"
-]New value: +[
+  "search",
+  "describe",
+  "install",
+  "uninstall",
+  "subscribe",
+  "cancel",
+  "resume",
+  "report_bug",
+  "request_mcp",
+  "list_tools",
+  "invoke"
+]

Changed2 schema fields changedJul 10, 2026

addedInput schema / properties / cancel_comment

Added value: +{
+  "default": "",
+  "type": "string"
+}

addedInput schema / properties / cancel_reason

Added value: +{
+  "enum": [
+    "too_expensive",
+    "missing_features",
+    "switched_service",
+    "unused",
+    "customer_service",
+    "too_complex",
+    "low_quality",
+    "other"
+  ],
+  "type": "string"
+}

First observedJun 10, 2026

TDQS

A4.5/5.0

Behavior5/5

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

Beyond the sparse annotations, the description reveals key behaviors: invoke runs uninstalled MCPs one-off without bloating the toolkit, returns auth/payment links, and requires owner/admin for writes. It also explains that search/describe surfaces installed_in_toolkit vs installed_in_workspace, adding substantive context.

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

Conciseness4/5

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

The description is a dense single paragraph, not concise, but it front-loads the primary purpose and core flow first. It packs substantial information without fluff, though it could be improved with bullet points or sections for readability.

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

Completeness4/5

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

The description thoroughly covers the main workflow, edge cases (credentials, wallet empty), permission requirements, and the prompt library. It lacks explicit output-format details for search/list_tools and omits some actions (e.g., resume), leaving room for improvement, but it is generally complete for the tool's complexity.

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

Parameters3/5

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

With 0% schema coverage, the description compensates by explaining the core flow (action=search→describe→invoke) and mapping common parameters like query, mcp_id, tool_id, and prompt_* variables. However, many parameters (limit, immediate, tier_slug, cancel_reason, etc.) remain unexplained, so the description only partially bridges the gap.

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 clearly identifies this as the mcp.ai marketplace, the catalog and execution layer for MCPs/tools. It distinguishes itself from sibling tools (e.g., notafiscal_*, connect) by being the discovery/invocation interface, and it explicitly states the scope of capability requests it covers.

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 gives explicit guidance on when to use invoke vs install ('prefer invoke for a single/occasional use', 'Use install only to make an MCP PERMANENT'), and explains the automatic handling of credentials and payment via connect/checkout links. It also positions this tool against sibling tools as the go-to for discovering and running MCPs, not for domain-specific operations.

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

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TDQS

A3.9/5.0

Disambiguation3/5

Tools like 'marketplace' and 'toolkit_info' have overlapping functionality regarding installed MCPs and tool listing, potentially confusing an agent. Similarly, 'authenticate' and 'connect' both handle authentication aspects. However, the notafiscal tools are clearly distinct by operation.

Naming Consistency4/5

The tools mostly follow a snake_case convention, and the notafiscal tools share a consistent prefix ('notafiscal_'). Minor deviations exist (e.g., 'notafiscal_empresas' uses a noun instead of a verb), but overall the pattern is predictable.

Tool Count5/5

With 12 tools covering both a generic MCP marketplace and a specific invoice service, the count is well-scoped. Each tool serves a clear purpose without unnecessary bloat or gaps.

Completeness4/5

The notafiscal tools cover the main CRUD lifecycle (emit, consult, list, cancel, download) and the marketplace tools cover discovery, installation, and account management. Minor gaps exist (e.g., no tool to update an invoice or manage user accounts), but the core workflows are supported.

marketplace

Input Schema

Schema Changelog

TDQS

Glama MCP Gateway

TDQS

Resources