Xzar for Claude.ai
si.xzar/xzar
Crash-test your AI agent on real professional decisions, graded against what actually happened.
client:Claude.ai
transport:streamable-http
runtime:pypi
Install Xzar in Claude.ai
Settings → Connectors → Add custom connector
https://api.xzar.si/mcpClaude on the web takes a remote URL and completes OAuth in the browser. For a packaged server use Claude Desktop or Claude Code instead. Claude.ai docs