What is Phoenix?
Phoenix is a MCP server by Arize-ai that open-source AI observability for experimenting, evaluating, and debugging LLM apps. It is listed under Developer tools and has 12,000 GitHub stars.
| Type | Mcp server |
|---|---|
| Author | Arize-ai |
| Repository | Arize-ai |
| Popularity | 12,000 GitHub stars |
| Category | Developer tools |
| Security | Low risk (92/100) |
| Rank | #56 of 4,418 MCP servers; #32 in Developer tools |
| Runs | Not stated |
Is Phoenix safe to install?
Phoenix scores 92/100 on the MCPMods security check: Low risk. No checks raised a concern. It passed 4 of 6 checks.
MCP server results come from listing signals: who publishes it, where your data goes and what it can do. The code itself is not scanned yet.
| Check | Result |
|---|---|
| Community-built server | Note |
| Where data goes is not stated | Note |
| No credentials mentioned | Pass |
| Read-only by description | Pass |
| No code execution | Pass |
| Source on GitHub | Pass |
How do I install Phoenix?
- Find the launch command. The README says how the server starts (npx, uvx, docker or a remote URL) and which API keys it needs.
https://github.com/Arize-ai
- Add it to Claude Code. Replace the part after -- with the command from the README. Remote servers use --transport http with a URL.
claude mcp add phoenix -- <command from README> claude mcp add --transport http phoenix <server-url>
- Check it connected. This lists your MCP servers and their status.
claude mcp list
Or ask Claude to set it up
Paste this into Claude Code and it installs Phoenix for you:
Add the "Phoenix" MCP server from https://github.com/Arize-ai to Claude Code. Read its README for the launch command and any API keys I need, run claude mcp add, then check that it connects.