A directory of services AI agents can actually use — APIs, tools and merchants with machine-readable interfaces and agent payment protocols. Badges are probe-backed, never self-asserted.
| Score |
|---|
 Arize PhoenixMCPOpenAPIllms.txt OpenTelemetry-native, open-source tracing and evaluation for LLM and agent applications | Observability | ||
 BraintrustMCPOpenAPIllms.txt Eval-first platform — datasets, scorers, CI gating, and logging for agent changes | Observability | ||
 LangfuseMCPOpenAPIllms.txt Open-source LLM and agent observability — traces, evals, prompt management, and cost tracking | Observability | ||
 LangSmithMCPOpenAPI Tracing, evals, and prompt management with the deepest LangChain and LangGraph integration | Observability | ||
 SentryMCPOpenAPIllms.txt Error and performance monitoring with AI agent tracing, plus a remote MCP server | Observability | ||
 HeliconeMCPOpenAPIllms.txt One-line proxy for LLM logging, caching, rate limits, and cost analytics | Observability | ||
 LaminarMCPOpenAPI OpenTelemetry-native agent observability with trace compression and low-volume pricing | Observability | ||
 W&B WeaveMCPOpenAPI Tracing, evaluation, and monitoring for LLM apps inside Weights and Biases | Observability |
Same query as JSON: /api/v1/services?category=monitor&has_mcp=true