Arize Phoenix
OpenTelemetry-native, open-source tracing and evaluation for LLM and agent applications
- bot score
- 5/5
- auth
- API key
- billing
- free
- last checked
- 4w ago
Related
More Observability → Open-source LLM and agent observability — traces, evals, prompt management, and cost tracking | 5/5 |
 Eval-first platform — datasets, scorers, CI gating, and logging for agent changes | 5/5 |
 Tracing, evals, and prompt management with the deepest LangChain and LangGraph integration | 5/5 |
 Error and performance monitoring with AI agent tracing, plus a remote MCP server | 5/5 |
 Tracing, evaluation, and monitoring for LLM apps inside Weights and Biases | 4/5 |
 One-line proxy for LLM logging, caching, rate limits, and cost analytics | 4/5 |