Braintrust alternatives
The highest-scoring alternative to Braintrust is Vellum at 88/100 on the AgentReady, against 55/100 for Braintrust.
All scored in LLM Observability & Evals.
An agent can get this list directly: resolve("alternative to Braintrust") over the MCP server, or GET /v1/categories/llm-observability.