Jaeger MCP Server

MCP Server for Jaeger.

Prerequisites

• Node.js 18+

Quick Start

This MCP server (using STDIO transport) can be added to any MCP Client like VS Code, Claude, Cursor, Windsurf Github Copilot via the jaeger-mcp-server NPM package.

VS Code

{
  "servers": {
    "jaeger-mcp-server": {
      "command": "npx",
      "args": ["-y", "jaeger-mcp-server"],
      "envFile": "${workspaceFolder}/.env"
    }
  }
}

Claude Desktop

{
  "mcpServers": {
    "jaeger-mcp-server": {
      "command": "npx",
      "args": ["-y", "jaeger-mcp-server"],
      "env": {
        "JAEGER_URL": ""
      }
    }
  }
}

Configuration

Environment Variables

• JAEGER_URL: HTTP API (HTTP JSON (/api/v3/*)) or the gRPC API (gRPC/Protobuf (jaeger.api_v3.QueryService)) URL of the Jaeger instance to access.
• JAEGER_PORT: HTTP or gRPC API port of the Jaeger instance to access. The default value is 16685 for the gRPC API and 16686 for the HTTP API.
• JAEGER_AUTHORIZATION_HEADER: Authorization HTTP header to be added into the requests for querying traces over Jaeger API (for ex. Basic )
• JAEGER_PROTOCOL: API protocol of the Jaeger instance to access. Valid values are GRPC and HTTP. The default value is GRPC. Valid

Components

Tools

• get-operations: Gets the operations as JSON array of object with name and spanKind properties. Supports the following input parameters:
  • service:
    • Mandatory: true
    • Type: string
    • Description: Filters operations by service name
  • spanKind:
    • Mandatory: false
    • Type: string
    • Description: Filters operations by OpenTelemetry span kind (server, client, producer, consumer, internal)
• get-services: Gets the service names as JSON array of string. No input parameter supported.
• get-trace: Gets the spans by the given trace by ID as JSON array of object in the OpenTelemetry resource spans format.
  • traceId:
    • Mandatory: true
    • Type: string
    • Description: Filters spans by OpenTelemetry compatible trace id in 32-character hexadecimal string format
  • startTime:
    • Mandatory: false
    • Type: string
    • Description: The start time to filter spans in the RFC 3339, section 5.6 format, (e.g., 2017-07-21T17:32:28Z)
  • endTime:
    • Mandatory: false
    • Type: string
    • Description: The end time to filter spans in the RFC 3339, section 5.6 format, (e.g., 2017-07-21T17:32:28Z)