prometheus-mcp-connector

name	prometheus-mcp-connector
description	MCP connector for Prometheus monitoring – enables AI-powered PromQL query building, alert rule creation, and metric exploration through Claude
license	Apache 2.0
tags	["cloud","monitoring","mcp","prometheus","metrics"]
difficulty	advanced
time_to_master	4-8 weeks
version	1.0.0

Prometheus MCP Connector

Overview

This skill enables Claude to interact with Prometheus through the Model Context Protocol (MCP). It provides a bridge between Claude's AI capabilities and Prometheus's REST API, allowing natural language control of Prometheus operations, intelligent automation, and AI-powered assistance for Prometheus workflows.

When to Use This Skill

• PromQL query generation from natural language
• Alert rule and recording rule creation
• Metric exploration and cardinality analysis
• Target and service discovery configuration
• Federation and remote write setup

Architecture

┌─────────────┐     ┌─────────────────┐     ┌──────────────────┐
│   Claude     │────▶│   MCP Server    │────▶│   Prometheus       │
│   (Client)   │◀────│   (TypeScript)  │◀────│   (REST API      )│
└─────────────┘     └─────────────────┘     └──────────────────┘

Core Concepts

MCP Server Setup

The connector implements an MCP server that exposes Prometheus operations as tools Claude can invoke. The server translates natural language intentions into REST API calls.

Key Endpoints/Interfaces

/api/v1/query, /api/v1/query_range, /api/v1/series, /api/v1/targets, /api/v1/rules

Implementation

// Prometheus MCP Server Implementation
import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js";
import { z } from "zod";

const server = new McpServer({
  name: "prometheus-mcp-connector",
  version: "1.0.0",
});

// Tool: List/Query Resources
server.tool(
  "list_resources",
  "List and query Prometheus resources with optional filters",
  {
    query: z.string().optional().describe("Search query or filter"),
    limit: z.number().optional().describe("Max results to return"),
  },
  async ({ query, limit }) => {
    // Call Prometheus REST API
    const response = await fetch(`${BASE_URL}/api/v1/query`, {
      headers: { "Authorization": `Bearer ${API_KEY}` },
    });
    const data = await response.json();
    return {
      : [{ : , : .(data, , ) }],
    };
  }
);


server.(
  ,
  ,
  {
    : z.().(),
    : z.({}).().().(),
  },
   ({ name, config }) => {
     response =  (, {
      : ,
      : {
        : ,
        : ,
      },
      : .({ name, ...config }),
    });
     data =  response.();
     {
      : [{ : , :  }],
    };
  }
);


server.(
  ,
  ,
  {
    : z.().(),
    : z.().().(),
  },
   ({ , timeframe }) => {
    
     response =  (, {
      : { :  },
    });
     data =  response.();
     {
      : [{ : , : .(data, , ) }],
    };
  }
);


 transport =  ();
 server.(transport);

Claude Desktop Configuration

{
  "mcpServers": {
    "prometheus-mcp-connector": {
      "command": "node",
      "args": ["path/to/prometheus-mcp-connector/index.js"],
      "env": {
        "PROMETHEUS_API_KEY": "your-api-key",
        "PROMETHEUS_BASE_URL": "https://your-instance-url"
      }
    }
  }
}

Best Practices

1. Authentication: Store API keys securely using environment variables; never hardcode credentials
2. Rate Limiting: Implement request throttling to respect Prometheus API rate limits
3. Error Handling: Provide clear, actionable error messages for common failure scenarios
4. Pagination: Handle paginated responses for large datasets efficiently
5. Caching: Cache frequently accessed read-only data to reduce API calls
6. Security: Validate all inputs before passing to the Prometheus API; sanitize outputs
7. Logging: Log all API interactions for debugging and audit purposes

Example Prompts

"Create a PromQL query for the 95th percentile request latency by service with a 5-minute rate window"

Security Considerations

• All API credentials must be stored as environment variables
• Implement input validation and sanitization for all tool parameters
• Use HTTPS for all API communications
• Follow the principle of least privilege for API token permissions
• Audit log all write operations for compliance tracking

Resources

• Prometheus Official Documentation
• MCP SDK Documentation: https://modelcontextprotocol.io
• MCP Server Examples: https://github.com/modelcontextprotocol/servers
• SkillGalaxy Repository: https://github.com/Sandeeprdy1729/skill_galaxy

Changelog

Version	Date	Changes
1.0.0	2026-04-01	Initial MCP connector skill

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