Introducing the Feedback API Endpoint for Mastra Observability

You can now query and evaluate human-generated feedback with the feedback API endpoint. Using HTTP endpoints and standard query parameters, you can filter by region, environment, thread, source, trace, entity, or experiment.

Human feedback comes in many forms — a thumbs up / thumbs down, a star rating, or a detailed comment. The feedback API gives you the parameters to construct powerful, fine-grained queries to see how well your agents are performing in the real world.

We shipped the TypeScript API in @mastra/core@1.18.0 (PR #14842). The new feedback API endpoint is language-agnostic and can be called from other services.

As of today, the feedback API endpoint is read-only. For writes, review-status updates, and deletes, use the TS API.