Xzar for Claude Code

si.xzar/xzar

Crash-test your AI agent on real professional decisions, graded against what actually happened.

client:Claude Code transport:streamable-http runtime:pypi

Install Xzar in Claude Code

run in your project directory

claude mcp add --transport http xzar https://api.xzar.si/mcp

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs