Arize

Instrumentation

Export traces to Arize AX for LLM observability and evaluation.

Install

Add Arize instrumentation from eve's registry. Arize AX ingests OTLP directly:

Quick start

Create agent/instrumentation.ts and send traces to Arize's OTLP endpoint with your space ID and API key:

// agent/instrumentation.tsimport { defineInstrumentation } from "eve/instrumentation";import { OTLPHttpProtoTraceExporter, registerOTel } from "@vercel/otel";
export default defineInstrumentation({  setup: ({ agentName }) =>    registerOTel({      serviceName: agentName,      attributes: { "openinference.project.name": agentName },      traceExporter: new OTLPHttpProtoTraceExporter({        url: "https://otlp.arize.com/v1/traces",        headers: {          space_id: process.env.ARIZE_SPACE_ID!,          api_key: process.env.ARIZE_API_KEY!,        },      }),    }),});

// agent/instrumentation.tsimport { defineInstrumentation } from "eve/instrumentation";import { OTLPHttpProtoTraceExporter, registerOTel } from "@vercel/otel";
export default defineInstrumentation({  setup: ({ agentName }) =>    registerOTel({      serviceName: agentName,      attributes: { "openinference.project.name": agentName },      traceExporter: new OTLPHttpProtoTraceExporter({        url: "https://otlp.arize.com/v1/traces",        headers: {          space_id: process.env.ARIZE_SPACE_ID!,          api_key: process.env.ARIZE_API_KEY!,        },      }),    }),});

Configure

Copy the space ID and API key from your Arize AX space settings and expose them as ARIZE_SPACE_ID and ARIZE_API_KEY. The openinference.project.name resource attribute routes spans to a project named after your agent. See the instrumentation guide for the trace hierarchy and the recordInputs/recordOutputs controls.