{"protocol":"A2A JSON-RPC 0.3","methods":["message/send","tasks/get"],"agentCard":"https://x402-crediting-swarm.vercel.app/.well-known/agent-card.json","hint":"POST {\"jsonrpc\":\"2.0\",\"id\":1,\"method\":\"message/send\",\"params\":{\"message\":{\"role\":\"user\",\"parts\":[{\"kind\":\"data\",\"data\":{\"payload\":{\"endpoint_url\":\"https://api.example/v1/resource\"}}}],\"metadata\":{\"skillId\":\"evaluate-x402-payload\"}}}}"}