openinference
OpenInference Instrumentation for MCP Typescript SDK
This module provides automatic instrumentation for the MCP Typescript SDK. which may be used in conjunction with @opentelemetry/sdk-trace-node.
Installation
npm install --save @arizeai/openinference-instrumentation-mcp
Usage
To load the MCP instrumentation, manually instrument the @modelcontextprotocol/sdk/client/index and/or @modelcontextprotocol/sdk/server/index module.
The client and server must be manually instrumented due to the non-traditional module structure in @modelcontextprotocol/sdk. Additional instrumentations can
be registered as usual using the registerInstrumentations function.
For example, if using stdio transport,
import { NodeTracerProvider } from "@opentelemetry/sdk-trace-node";
import { MCPInstrumentation } from "@arizeai/openinference-instrumentation-mcp";
import * as MCPClientStdioModule from "@modelcontextprotocol/sdk/client/stdio";
import * as MCPServerStdioModule from "@modelcontextprotocol/sdk/server/stdio";
const provider = new NodeTracerProvider();
provider.register();
const mcpInstrumentation = new MCPInstrumentation();
// MCP must be manually instrumented as it doesn't have a traditional module structure
mcpInstrumentation.manuallyInstrument({
clientStdioModule: MCPClientStdioModule,
serverStdioModule: MCPServerStdioModule,
});
For more information on OpenTelemetry Node.js SDK, see the OpenTelemetry Node.js SDK documentation.