{"name": "chalkboard", "description": "Chalkboard remote utility \u2014 draw a board, get a share link a human opens without logging in.", "contract_version": "1.0.0", "vendor": "ONREB.ai", "endpoints": {"mcp": "/mcp (Streamable HTTP JSON-RPC; Authorization: Bearer cbk_<key>, or ?key=cbk_<key> for URL-only clients)", "rest": "POST /v1/boards {spec} (same auth)", "health": "GET /healthz", "usage": "GET /v1/usage (admin)"}, "onboarding": {"claude_code": "claude mcp add --transport http chalkboard https://chalkboard.onreb.ai/mcp --header \"Authorization: Bearer cbk_<key>\"", "mcp_remote_bridge": "npx -y mcp-remote https://chalkboard.onreb.ai/mcp --header \"Authorization: Bearer cbk_<key>\"", "url_only_client": "Streamable HTTP transport with URL https://chalkboard.onreb.ai/mcp?key=cbk_<key> (for MCP UIs that can't set a header, e.g. Odysseus)", "curl": "curl -X POST https://chalkboard.onreb.ai/v1/boards -H 'Authorization: Bearer cbk_<key>' -H 'Content-Type: application/json' -d '{{\"spec\": {{...}}}}'", "first_call": "MCP tools/call hello_board \u2014 renders a sample board and returns a live share_url"}, "docs": "https://github.com/onreb-ai/chalkboard/blob/main/connector/API.md"}