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sumo-mcp

by droyad
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JavaScript
Remote

sumo-mcp

Minimal MCP server that exposes a single search_logs tool for Sumo Logic.

Build

npm install
npm run build

Related MCP server: Graylog MCP Server

Configure in Claude Code

API Key

In Sumo:

  • Click on your username and select Personal Access Keys

  • Click Add New Access Key

  • Enter a name, e.g. Claude Local

  • Select Custom under scope

  • Check Run Log Search under the Log Search section

  • Save the key

Install

The commands below prompt for the access ID and key interactively so the secrets never appear on the command line or in shell history.

SUMO_ENDPOINT must match https://api.*.sumologic.com. Pick the host for your Sumo deployment region (US2, EU, AU, etc.).

PowerShell

$accessId = Read-Host "Sumo Access ID"
$accessKey = [System.Net.NetworkCredential]::new('', (Read-Host "Sumo Access Key" -AsSecureString)).Password

claude mcp add --scope user sumo `
  --env SUMO_ACCESS_ID=$accessId `
  --env SUMO_ACCESS_KEY=$accessKey `
  --env SUMO_ENDPOINT=https://api.us2.sumologic.com `
  -- node C:\Source\SumoMcp\dist\index.js

Remove-Variable accessId, accessKey

Bash

read -r -p "Sumo Access ID: " SUMO_ACCESS_ID
read -r -s -p "Sumo Access Key: " SUMO_ACCESS_KEY
echo

SUMO_ACCESS_ID="$SUMO_ACCESS_ID" SUMO_ACCESS_KEY="$SUMO_ACCESS_KEY" \
  claude mcp add --scope user sumo \
    --env SUMO_ACCESS_ID="$SUMO_ACCESS_ID" \
    --env SUMO_ACCESS_KEY="$SUMO_ACCESS_KEY" \
    --env SUMO_ENDPOINT=https://api.us2.sumologic.com \
    -- node /path/to/sumo-mcp/dist/index.js

unset SUMO_ACCESS_ID SUMO_ACCESS_KEY

Tool

search_logs(query, from?, to?, max_results?, timezone?)

  • query — Sumo search expression

  • from / to — ISO 8601 without timezone designator (2026-05-07T10:00:00), epoch milliseconds, or relative shorthand now / -<N><unit> where unit is s|m|h|d|w (e.g. -15m, -1h, -7d). Relative values are translated to epoch milliseconds before being sent to Sumo. Default -15m / now

  • max_results — default 100, capped at 1000

  • timezone — IANA name, default UTC (used when from/to are ISO 8601 without an explicit offset)

Returns a JSON array of messages with _messageTime, _sourceCategory, _sourceHost, _sourceName, _raw.

Hard timeout 60s — narrow the time range or query if you hit it.

Design

See docs/superpowers/specs/2026-05-07-sumo-mcp-design.md.

Available Tools

1 tool
search_logsA

Run a Sumo Logic search and return matching log lines. Use this to investigate production issues, find errors, trace events, or look up activity in logs. Returns trimmed messages with timestamp, source category, host, source name, and raw log line.

ParametersJSON Schema
NameRequiredDescriptionDefault
queryYesSumo Logic search expression (e.g. `_sourceCategory=prod/api error`).
fromNoStart time. ISO 8601 (e.g. "2026-05-07T10:00:00") or Sumo relative ("-15m", "-1h", "-1d", "now"). Default "-15m".
toNoEnd time. Same format as `from`. Default "now".
max_resultsNoMax messages to return. Default 100, capped at 1000.
timezoneNoIANA timezone name for the search (e.g. "UTC", "Europe/London"). Default "UTC".

TDQS

A4.4/5.0
Behavior4/5

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

The description discloses the return format: 'Returns trimmed messages with timestamp, source category, host, source name, and raw log line.' Since no annotations exist, the description sufficiently informs about the tool's read-only nature and output structure.

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

Conciseness5/5

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

The description is extremely concise, consisting of only two sentences. The first sentence states the core function, and the second provides use cases and return fields. No redundant information.

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?

Given the tool has 5 parameters and no output schema, the description covers the purpose, usage timing, and return structure. It is sufficiently complete for an agent to understand when and how to use it.

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?

Schema coverage is 100%, with each parameter described. The tool description does not add extra semantic detail beyond the schema; however, the schema descriptions are adequate. Baseline 3 is appropriate.

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 states 'Run a Sumo Logic search and return matching log lines', specifying the exact action and resource. It also lists specific use cases like investigating production issues, finding errors, and tracing events.

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 explicitly states when to use the tool: 'Use this to investigate production issues, find errors, trace events, or look up activity in logs.' This provides clear context for usage.

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

Tool Schema Changelog

Recent tool additions, removals, and schema changes observed during successful MCP inspections. Dates show when Glama detected each change.

  1. 1 tool updatev0.1.0
    • First observedsearch_logs
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TDQS

A4.1/5.0
Disambiguation5/5

With only one tool, there is no potential for ambiguity. The single tool is clearly defined and cannot be confused with any other.

Naming Consistency5/5

The single tool name 'search_logs' follows a clear verb_noun pattern, which is consistent and predictable.

Tool Count2/5

A single tool for a logging platform seems insufficient. Typical users would expect additional tools for managing searches, retrieving past results, or listing sources, making the count feel too limited for the domain.

Completeness2/5

The server only offers a search functionality without supporting operations like listing saved searches, polling search status, or retrieving historical results. This leaves significant gaps for a complete log investigation workflow.

Maintenance

ActivityInactive
ResponsivenessSyncing

Resources

Unclaimed servers have limited discoverability.

Looking for Admin?

If you are the server author, to access and configure the admin panel.

Related MCP Connectors

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  • Graylog MCP Server

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