Mastra

Mastra emits GenAI spans of its own through its OpenTelemetry exporter. TypeScript.

Turn tracing on

npm install @mastra/observability @mastra/otel-exporter @opentelemetry/exporter-trace-otlp-proto

import { Mastra } from "@mastra/core/mastra";
import { Observability } from "@mastra/observability";
import { OtelExporter } from "@mastra/otel-exporter";

export const mastra = new Mastra({
  agents: { researcher },
  observability: new Observability({
    configs: {
      otel: {
        serviceName: "research-agent",
        exporters: [new OtelExporter({
          provider: { custom: {
            endpoint: "https://<gateway>/v1/traces",
            protocol: "http/protobuf",
            headers: {
              "X-Api-Key": "organisations/<organisation>/apiKeys/<key>",
              "X-Api-Secret": process.env.AGENTPULSE_SECRET!,
              "X-Agentpulse-Agent": "organisations/<organisation>/agents/<agent>",
            },
          } },
          signals: { logs: false },
        })],
      },
    },
  }),
});

signals: { logs: false } stops the exporter sending logs to the same host, which Agent Pulse does not take.

What is recorded

• Each model call, with its model and tokens, cached tokens included, streamed or not.
• Each tool call.

Mastra names the AI SDK provider, such as openai.chat, so the provider is told from the model name, as on the Strands page.

Checked with Mastra 1.77.

Budgets

Spans arrive after the call, so spend counts against your budgets and raises alerts, but a budget cannot stop a call recorded this way.