{"name":"5arz Proof-of-Human MCP server","transport":"Streamable HTTP (JSON-RPC 2.0 over POST)","usage":"POST JSON-RPC MCP messages to this URL. Auth: Authorization: Bearer <5arz API key>.","tools":["register_agent","verify_human","check_credential","get_vhh_index","buy_credits","get_balance"],"docs":"https://5arz.com/mcp"}