mcp-server

local MCP server

Installation

Terminal

claude mcp add spanlens-github-io -e SPANLENS_API_KEY=... -e SPANLENS_BASE_URL=... -- npx -y @spanlens/mcp-server

Run in your project folder. Add --scope user to use it everywhere.

Claude Desktop, Cursor & other clients

Add to claude_desktop_config.json or .cursor/mcp.json.

{
  "mcpServers": {
    "spanlens-github-io": {
      "command": "npx",
      "args": [
        "-y",
        "@spanlens/mcp-server"
      ],
      "env": {
        "SPANLENS_API_KEY": "...",
        "SPANLENS_BASE_URL": "..."
      }
    }
  }
}

Fill in the environment variables with your own credentials.

Summary

Query Spanlens LLM observability from Cursor, Claude Desktop, or Continue via MCP.

Questions

mcp-server is a local MCP server distributed as the npm package @spanlens/mcp-server.

Run: claude mcp add spanlens-github-io -e SPANLENS_API_KEY=... -e SPANLENS_BASE_URL=... -- npx -y @spanlens/mcp-server

Run: codex mcp add spanlens-github-io --env SPANLENS_API_KEY=... --env SPANLENS_BASE_URL=... -- npx -y @spanlens/mcp-server

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