agentprobe.org
069 ms4,858 ms2026-09-07T06:42:53+00:00 · protocol-mismatch · 367 ms2026-09-08T08:14:30+00:00 · protocol-mismatch · 3201 ms2026-09-09T09:16:32+00:00 · connect-fail · 4858 ms2026-09-10T10:07:33+00:00 · protocol-mismatch · 938 ms2026-09-11T11:10:00+00:00 · protocol-mismatch · 884 ms2026-09-12T12:05:07+00:00 · protocol-mismatch · 1170 ms2026-09-13T13:03:20+00:00 · protocol-mismatch · 988 ms2026-09-14T14:30:53+00:00 · protocol-mismatch · 1545 ms2026-09-15T15:21:34+00:00 · protocol-mismatch · 1353 ms2026-09-16T16:21:57+00:00 · protocol-mismatch · 1435 ms2026-09-17T17:18:45+00:00 · protocol-mismatch · 1439 ms2026-09-18T18:21:20+00:00 · protocol-mismatch · 1787 ms2026-09-19T19:19:15+00:00 · protocol-mismatch · 1523 ms2026-09-20T20:15:41+00:00 · protocol-mismatch · 1481 ms2026-09-07 06:422026-09-20 20:15069 ms4,858 ms2026-09-07T06:42:53+00:00 · protocol-mismatch · 367 ms2026-09-08T08:14:30+00:00 · protocol-mismatch · 3201 ms2026-09-09T09:16:32+00:00 · connect-fail · 4858 ms2026-09-10T10:07:33+00:00 · protocol-mismatch · 938 ms2026-09-11T11:10:00+00:00 · protocol-mismatch · 884 ms2026-09-12T12:05:07+00:00 · protocol-mismatch · 1170 ms2026-09-13T13:03:20+00:00 · protocol-mismatch · 988 ms2026-09-14T14:30:53+00:00 · protocol-mismatch · 1545 ms2026-09-15T15:21:34+00:00 · protocol-mismatch · 1353 ms2026-09-16T16:21:57+00:00 · protocol-mismatch · 1435 ms2026-09-17T17:18:45+00:00 · protocol-mismatch · 1439 ms2026-09-18T18:21:20+00:00 · protocol-mismatch · 1787 ms2026-09-19T19:19:15+00:00 · protocol-mismatch · 1523 ms2026-09-20T20:15:41+00:00 · protocol-mismatch · 1481 ms2026-09-07 06:422026-09-20 20:15
probe history, latency (log) over time, glyph = outcome
D grade
protocol-mismatch
80 score
1481 ms
1.0 version
0.0% uptime over 14 measured 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 2026-09-21 · json

Listed in

sourcenamedescriptionexternal id
Agenstryapi.xfuel.apppaid_api:api.xfuel.app

Same host

agents-txt × 1 ard × 1 llms-txt × 1 · 1 alive robots × 1 sigdir × 1 x402 × 4 · 3 alive

Badge

agentprobe grade D

embed:

<a href="https://agentprobe.org/endpoint/5938"><img src="https://agentprobe.org/badge/5938.svg" alt="agentprobe"></a>

Probe history

probed (UTC)outcomescorestatushttpmsversioncapabilitieserror
2026-09-20 20:15protocol-mismatch80 200HTTP/1.114811.0
details

capabilities 

{"era":"1.0","skills_count":8,"skills":["chat-completions","responses","a2a-message","register-agent","agent-book","foreign-ingest","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,"http_version":"HTTP/1.1","vantage":"us-east-1"}
interface HTTP 404
2026-09-19 19:19protocol-mismatch80 200HTTP/1.115231.0
details

capabilities 

{"era":"1.0","skills_count":8,"skills":["chat-completions","responses","a2a-message","register-agent","agent-book","foreign-ingest","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,"http_version":"HTTP/1.1","vantage":"us-east-1"}
interface HTTP 404
2026-09-18 18:21protocol-mismatch80 200HTTP/1.117871.0
details

capabilities 

{"era":"1.0","skills_count":8,"skills":["chat-completions","responses","a2a-message","register-agent","agent-book","foreign-ingest","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,"http_version":"HTTP/1.1","vantage":"us-east-1"}
interface HTTP 404
2026-09-17 17:18protocol-mismatch80 200HTTP/1.114391.0
details

capabilities 

{"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,"http_version":"HTTP/1.1","vantage":"us-east-1"}
interface HTTP 404
2026-09-16 16:21protocol-mismatch80 200HTTP/1.114351.0
details

capabilities 

{"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,"http_version":"HTTP/1.1","vantage":"us-east-1"}
interface HTTP 404
2026-09-15 15:21protocol-mismatch80 200HTTP/1.113531.0
details

capabilities 

{"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,"http_version":"HTTP/1.1","vantage":"us-east-1"}
interface HTTP 404
2026-09-14 14:30protocol-mismatch80 200HTTP/1.115451.0
details

capabilities 

{"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,"http_version":"HTTP/1.1","vantage":"us-east-1"}
interface HTTP 404
2026-09-13 13:03protocol-mismatch80 200HTTP/1.19881.0
details

capabilities 

{"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,"http_version":"HTTP/1.1","vantage":"us-east-1"}
interface HTTP 404
2026-09-12 12:05protocol-mismatch80 200HTTP/1.111701.0
details

capabilities 

{"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,"http_version":"HTTP/1.1","vantage":"us-east-1"}
interface HTTP 404
2026-09-11 11:10protocol-mismatch80 200HTTP/1.18841.0
details

capabilities 

{"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,"http_version":"HTTP/1.1","vantage":"us-east-1"}
interface HTTP 404
2026-09-10 10:07protocol-mismatch80 200HTTP/1.19381.0
details

capabilities 

{"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,"http_version":"HTTP/1.1","vantage":"us-east-1"}
interface HTTP 404
2026-09-09 09:16connect-fail60 20048581.0
details

capabilities 

{"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","vantage":"us-east-1"}
card ok; interface connect-fail: WriteError:
2026-09-08 08:14protocol-mismatch80 20032011.0
details

capabilities 

{"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 06:42protocol-mismatch80 2003671.0
details

capabilities 

{"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