Prometheus MCP Server

Name: Prometheus MCP Server
Author: tjhop

@tjhop

リポジトリ

Prometheus MCP Server について

MCP server for LLMs to interact with Prometheus

基本情報

カテゴリ

開発者ツール

ライセンス

Apache-2.0

ランタイム

トランスポート

stdio

公開者

tjhop

設定

以下の設定を使って、このサーバーを MCP 対応クライアントに追加してください。

{
  "mcpServers": {
    "prometheus-mcp-server-tjhop": {
      "command": "docker",
      "args": [
        "run",
        "--rm",
        "-i",
        "ghcr.io/tjhop/prometheus-mcp-server:latest",
        "--prometheus.url",
        "https://$yourPrometheus:9090"
      ]
    }
  }
}

ツール

ツールは検出されませんでした

ツールは README から自動的に抽出されます。メンテナーは ## Tools という見出しの下に記載することで、このタブに反映できます。

概要

What is Prometheus MCP Server?

Prometheus MCP Server is a Model Context Protocol server that enables LLMs to interact with a running Prometheus instance via its HTTP API. It allows generating and executing PromQL queries, listing and analyzing metrics, and reading Prometheus documentation, targeting developers and SREs who want AI-driven observability.

How to use Prometheus MCP Server?

Install the binary and configure it to connect to a Prometheus instance. Use command-line flags such as --prometheus.url (default: http://localhost:9090), --mcp.tools to whitelist specific tools, --dangerous.enable-tsdb-admin-tools for destructive operations, --prometheus.backend for compatible backends, --toon for TOON encoding, and --truncation to limit API response lines. The server exposes tools and resources that LLM clients can call.

Key features of Prometheus MCP Server

Execute instant and range PromQL queries
List and search metrics, labels, and series
Access official Prometheus documentation via docs tools
Support for Prometheus compatible backends (e.g., Thanos)
Token/context efficiency through TOON encoding and response truncation
Optional TSDB admin tools (dangerous)

Use cases of Prometheus MCP Server

Investigate slow queries by analyzing Prometheus metrics
Suggest recording rules for SLOs based on server metrics
Summarize Prometheus metric and label naming best practices
Review Prometheus instance health, configuration, and runtime info

FAQ from Prometheus MCP Server

What Prometheus compatible backends are supported?

The server works with any service offering a Prometheus compatible API. Specific backends like Thanos can be selected via --prometheus.backend, which may add or remove tools (e.g., Thanos removes config and adds list_stores).

Can I limit token usage from Prometheus API responses?

Yes. Use the --toon flag to convert JSON to TOON format for token efficiency, or set --truncation to limit the number of lines/entries returned. The truncation limit is disabled by default and can be overridden per-tool-call by capable LLMs.

What are the runtime dependencies?

The server is a compiled Go binary with no external runtime dependencies. It requires network access to a running Prometheus instance (or compatible backend).

How do I enable TSDB admin tools?

TSDB admin endpoints (e.g., delete_series, snapshot, clean_tombstones) are disabled by default. Start the server with the flag --dangerous.enable-tsdb-admin-tools to acknowledge the risk and enable them.

Does the server support authentication or transport security?

The README does not mention authentication or TLS configuration. The server assumes a direct HTTP connection to Prometheus and relies on Prometheus's own access control.

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