D grade
protocol-mismatch
80 score
3201 ms
1.0 version
0.0% uptime over 2 probes
AS16509 AMAZON-02 - Amazon.com, Inc., US · US
https://api.xfuel.app/.well-known/agent-card.json
a2a first seen 2026-09-07 · last seen 2026-09-08 · json
Listed in
| source | name | description | external id |
|---|---|---|---|
| Agenstry | api.xfuel.app | paid_api:api.xfuel.app |
Same host
agents-txt × 1 ard × 1 llms-txt × 1 robots × 1 sigdir × 1 x402 × 2 · 1 alive
Badge
embed:
<a href="https://agentprobe.org/endpoint/5938"><img src="https://agentprobe.org/badge/5938.svg" alt="agentprobe"></a>
Probe history
| probed (UTC) | outcome | score | status | ms | version | capabilities | error |
|---|---|---|---|---|---|---|---|
| 2026-09-08 08:14 | protocol-mismatch | 80 | 200 | 3201 | 1.0 | detailscapabilities {"era":"1.0","skills_count":7,"skills":["chat-completions","responses","a2a-message","register-agent","agent-book","erc8004-validate","models"],"streaming":false,"push_notifications":false,"security_schemes":["apiKey"],"bindings":["HTTP+JSON"],"signatures":0}meta {"card_url":"https://api.xfuel.app/.well-known/agent-card.json","card":{"name":"Chit402","version":"1.0.0","provider":{"organization":"Chit402","url":"https://chit402.com"},"documentationUrl":"https://api.xfuel.app/llms.txt"},"missing_fields":[],"endpoint_url":"https://api.xfuel.app/a2a-message","binding":"HTTP+JSON","endpoint_status":404,"vantage":"us-east-1"} | interface HTTP 404 |
| 2026-09-07 06:42 | protocol-mismatch | 80 | 200 | 367 | 1.0 | detailscapabilities {"era":"1.0","skills_count":7,"skills":["chat-completions","responses","a2a-message","register-agent","agent-book","erc8004-validate","models"],"streaming":false,"push_notifications":false,"security_schemes":["apiKey"],"bindings":["HTTP+JSON"],"signatures":0}meta {"card_url":"https://api.xfuel.app/.well-known/agent-card.json","card":{"name":"Chit402","version":"1.0.0","provider":{"organization":"Chit402","url":"https://chit402.com"},"documentationUrl":"https://api.xfuel.app/llms.txt"},"missing_fields":[],"endpoint_url":"https://api.xfuel.app/a2a-message","binding":"HTTP+JSON","endpoint_status":404} | interface HTTP 404 |