{ "_comment": "Copy to .cursor/mcp.json (git-ignored) and fill the gateway slug + your user_id. Headers confirmed from Arcade docs (see LIVE-POC.md).", "mcpServers": { "arcade-eval": { "url": "https://api.arcade.st.dev/mcp/", "headers": { "Authorization": "Bearer ${ARCADE_API_KEY}", "Arcade-User-ID": "" } } } }