D grade
protocol-mismatch
80 score
117 ms
1.0 version
0.0% uptime over 4 measured probes
AS16509 AMAZON-02 - Amazon.com, Inc., US · US
https://agenttrust-umber.vercel.app/.well-known/agent-card.json
a2a first seen 2026-09-19 · last seen 2026-09-22 · json
Listed in
| source | name | description | external id |
|---|---|---|---|
| Agenstry | AgentTrust | a2a_agent:agenttrust-umber.vercel.app |
Same host
agents-txt × 1 ard × 1 llms-txt × 1 · 1 alive mcp × 1 · 1 alive robots × 1 sigdir × 1
Badge
embed:
<a href="https://agentprobe.org/endpoint/3979687"><img src="https://agentprobe.org/badge/3979687.svg" alt="agentprobe"></a>
Probe history
| probed (UTC) | outcome | score | status | http | ms | version | capabilities | error |
|---|---|---|---|---|---|---|---|---|
| 2026-09-22 12:03 | protocol-mismatch | 80 | 200 | HTTP/1.1 | 117 | 1.0 | detailscapabilities {"era":"0.3","skills_count":2,"skills":["check-agent-trust","check-ownership-verification"],"streaming":false,"push_notifications":false,"security_schemes":["bearerAuth"],"bindings":["JSONRPC"],"signatures":0}meta {"card_url":"https://agenttrust-umber.vercel.app/.well-known/agent-card.json","card":{"name":"AgentTrust","version":"1.0.0","provider":null,"documentationUrl":"https://getagenttrust.com/docs"},"missing_fields":[],"endpoint_url":"https://getagenttrust.com/api/v1","binding":"JSONRPC","endpoint_status":200,"http_version":"HTTP/1.1","vantage":"us-east-1"} | interface HTTP 200, no A2A envelope |
| 2026-09-21 11:03 | protocol-mismatch | 80 | 200 | HTTP/1.1 | 109 | 1.0 | detailscapabilities {"era":"0.3","skills_count":2,"skills":["check-agent-trust","check-ownership-verification"],"streaming":false,"push_notifications":false,"security_schemes":["bearerAuth"],"bindings":["JSONRPC"],"signatures":0}meta {"card_url":"https://agenttrust-umber.vercel.app/.well-known/agent-card.json","card":{"name":"AgentTrust","version":"1.0.0","provider":null,"documentationUrl":"https://getagenttrust.com/docs"},"missing_fields":[],"endpoint_url":"https://getagenttrust.com/api/v1","binding":"JSONRPC","endpoint_status":200,"http_version":"HTTP/1.1","vantage":"us-east-1"} | interface HTTP 200, no A2A envelope |
| 2026-09-20 10:05 | protocol-mismatch | 80 | 200 | HTTP/1.1 | 161 | 1.0 | detailscapabilities {"era":"0.3","skills_count":2,"skills":["check-agent-trust","check-ownership-verification"],"streaming":false,"push_notifications":false,"security_schemes":["bearerAuth"],"bindings":["JSONRPC"],"signatures":0}meta {"card_url":"https://agenttrust-umber.vercel.app/.well-known/agent-card.json","card":{"name":"AgentTrust","version":"1.0.0","provider":null,"documentationUrl":"https://getagenttrust.com/docs"},"missing_fields":[],"endpoint_url":"https://getagenttrust.com/api/v1","binding":"JSONRPC","endpoint_status":200,"http_version":"HTTP/1.1","vantage":"us-east-1"} | interface HTTP 200, no A2A envelope |
| 2026-09-19 10:03 | protocol-mismatch | 80 | 200 | HTTP/1.1 | 1145 | 1.0 | detailscapabilities {"era":"0.3","skills_count":2,"skills":["check-agent-trust","check-ownership-verification"],"streaming":false,"push_notifications":false,"security_schemes":["bearerAuth"],"bindings":["JSONRPC"],"signatures":0}meta {"card_url":"https://agenttrust-umber.vercel.app/.well-known/agent-card.json","card":{"name":"AgentTrust","version":"1.0.0","provider":null,"documentationUrl":"https://agenttrust-umber.vercel.app/docs"},"missing_fields":[],"endpoint_url":"https://agenttrust-umber.vercel.app/api/v1","binding":"JSONRPC","endpoint_status":200,"http_version":"HTTP/1.1","vantage":"us-east-1"} | interface HTTP 200, no A2A envelope |