Arize Phoenix
by Arize AIOpen-source observability and evaluation tooling for LLM applications, traces, datasets, and experiments.
2026-04-27credited to Arize AI
Contributor credited on accepted HeyClaude registry entries.
Open-source observability and evaluation tooling for LLM applications, traces, datasets, and experiments.
Inspect LLM traces and spans, manage prompts, explore datasets, and review evaluation experiments from Claude — with the official Arize Phoenix MCP server, built into the open-source Phoenix AI observability platform.
No reviewed entries yet.