{"endpoint":{"id":8209,"url":"https://mcp-server-quality-corpus.mtree.workers.dev/.well-known/agent-card.json","host":"mcp-server-quality-corpus.mtree.workers.dev","kind":"a2a","first_seen":"2026-09-07T00:02:58+00:00","last_seen":"2026-09-08T13:52:35+00:00","last_probed_at":"2026-09-08T08:14:56+00:00","last_outcome":"connect-fail","last_score":null,"last_latency_ms":897,"last_http_status":null},"probes":[{"id":280833,"endpoint_id":8209,"probed_at":"2026-09-08T08:14:56+00:00","probe_kind":"a2a","outcome":"connect-fail","http_status":null,"latency_ms":897,"protocol_version":null,"score":null,"capabilities":{},"error":"WriteError: ","meta":{"vantage":"us-east-1"},"ip":"104.21.3.88"},{"id":63323,"endpoint_id":8209,"probed_at":"2026-09-07T07:33:32+00:00","probe_kind":"a2a","outcome":"connect-fail","http_status":null,"latency_ms":1589,"protocol_version":null,"score":null,"capabilities":{},"error":"LocalProtocolError: Invalid input ConnectionInputs.SEND_HEADERS in state ConnectionState.CLOSED","meta":{"vantage":"us-east-1"},"ip":"104.21.3.88"}]}