Prometheus MCP Server

Prometheus MCP Server

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What is the Prometheus MCP server?

Connect Prometheus to Claude, Cursor or any other MCP client and it stops being a tab you switch to. Prometheus MCP Server. The prometheus mcp server is what makes that connection.

What the server does

A Model Context Protocol (MCP) server that provides seamless integration between AI assistants and Prometheus, enabling natural language interactions with your monitoring infrastructure. This server allows for effortless querying, discovery, and analysis of metrics through Visual Studio Code, Cursor, Windsurf, Claude Desktop, and other MCP clients.

  • Fast and lightweight — . Direct API integration with Prometheus, no complex parsing needed
  • LLM-friendly — . Structured JSON responses optimized for AI assistant consumption
  • Configurable capabilities — . Enable/disable tool categories based on your security and operational requirements
  • Dual transport support — . Works with both stdio and HTTP transports for maximum compatibility

Installation

The server ships on npm as prometheus-mcp, so your MCP client can launch it on demand — there is no separate build step. Add the server block to your client's configuration, restart it, and the tools register themselves.

Available tools

The toolset is worth reading before you wire it up, because it tells you what the integration is really for:

  • Description — List all available Prometheus metrics
  • Parameters — None
  • Read-onlytrue

Credentials and setup notes

Configuration is passed through the environment: PROMETHEUS_URL. Treat anything key-shaped as a real credential — scope it to the minimum the server needs, and rotate it if it ever lands in a shared config.

  • Node.js 20.19.0 or newer - Access to a Prometheus server - VS Code, Cursor, Windsurf, Claude Desktop or any other MCP client

Worth knowing first

  • It runs with your machine's permissions. That is convenient and also the reason to think about what you point it at before you approve a tool call.
  • Missing credentials fail quietly in some clients — if no tools show up, check the environment block first.
  • Keep per-call confirmation enabled while you learn its behaviour; it is the cheapest safeguard you have.

Where it fits

Plenty of monitoring and observability servers cover similar ground. The differences that matter in practice are scope of access and how much setup stands between you and a working tool call. Prometheus's toolset — Description, Parameters, Read-only — is a fair guide to whether it matches your workflow. It is maintained by idanfishman; worth a glance at recent repository activity before you build anything load-bearing on it.

We check each listing at SyncDev against the project's documentation before it goes live — if something here drifts out of date, it is a bug worth reporting.

Available tools

ToolWhat it does
DescriptionList all available Prometheus metrics
ParametersNone
Read-only**true**

How to install the Prometheus MCP server

{
  "mcpServers": {
    "prometheus": {
      "command": "npx",
      "args": ["prometheus-mcp@latest", "stdio"],
      "env": {
        "PROMETHEUS_URL": "http://localhost:9090"
      }
    }
  }
}

Configuration as documented by the project. Restart the client after saving.

Configuration

  • Node.js 20.19.0 or newer - Access to a Prometheus server - VS Code, Cursor, Windsurf, Claude Desktop or any other MCP client
VariableDescriptionRequired
PROMETHEUS_URLEndpoint or connection string the server talks to.Yes

Example prompts to try

  • Use Prometheus to Description.
  • Use Prometheus to Parameters.
  • Use Prometheus to Read-only.

Frequently asked questions

It connects Prometheus to MCP-compatible AI assistants such as Claude and Cursor, exposing 3 tools (Description, Parameters, Read-only) that the assistant can call on your behalf. Instead of copying data back and forth by hand, the assistant works with Prometheus directly.