D grade
card-invalid
30 score
973 ms
1.0 version
0.0% uptime over 6 measured probes
AS13335 CLOUDFLARENET - Cloudflare, Inc., US · US
https://source-claim-proof.mattskowronis.workers.dev/.well-known/agent-card.json
a2a first seen 2026-09-07 · last seen 2026-09-11 · json
Listed in
| source | name | description | external id |
|---|---|---|---|
| A2A Registry (a2aregistry.org) | Source Claim Proof | Verify whether a supplied public source page currently supports one atomic factual claim. Returns supported, contradicted, or insufficient-evidence plus source | https://source-claim-proof.mattskowronis.workers.dev/.well-k |
| Agenstry | Source Claim Proof | paid_api:source-claim-proof.mattskowronis.workers.dev |
Same host
agents-txt × 1 ard × 1 llms-txt × 1 mcp × 1 · 1 alive robots × 1 · 1 alive sigdir × 1 x402 × 2
Badge
embed:
<a href="https://agentprobe.org/endpoint/155"><img src="https://agentprobe.org/badge/155.svg" alt="agentprobe"></a>
Probe history
| probed (UTC) | outcome | score | status | http | ms | version | capabilities | error |
|---|---|---|---|---|---|---|---|---|
| 2026-09-11 12:17 | card-invalid | 30 | 200 | HTTP/1.1 | 973 | 1.0 | detailscapabilities {"era":"0.3","skills_count":1,"skills":["verify_source_claim"],"streaming":null,"push_notifications":null,"security_schemes":["x402"],"bindings":["JSONRPC","JSONRPC","HTTP+JSON"],"signatures":0}meta {"card_url":"https://source-claim-proof.mattskowronis.workers.dev/.well-known/agent-card.json","card":{"name":"Source Claim Proof","version":"1.0.0","provider":{"organization":"Matthew Skowron","url":"https://source-claim-proof.mattskowronis.workers.dev"},"documentationUrl":"https://source-claim-proof.mattskowronis.workers.dev/openapi.json"},"missing_fields":["capabilities"],"http_version":"HTTP/1.1","vantage":"us-east-1"} | missing ['capabilities'] |
| 2026-09-10 11:17 | card-invalid | 30 | 200 | HTTP/1.1 | 1045 | 1.0 | detailscapabilities {"era":"0.3","skills_count":1,"skills":["verify_source_claim"],"streaming":null,"push_notifications":null,"security_schemes":["x402"],"bindings":["JSONRPC","JSONRPC","HTTP+JSON"],"signatures":0}meta {"card_url":"https://source-claim-proof.mattskowronis.workers.dev/.well-known/agent-card.json","card":{"name":"Source Claim Proof","version":"1.0.0","provider":{"organization":"Matthew Skowron","url":"https://source-claim-proof.mattskowronis.workers.dev"},"documentationUrl":"https://source-claim-proof.mattskowronis.workers.dev/openapi.json"},"missing_fields":["capabilities"],"http_version":"HTTP/1.1","vantage":"us-east-1"} | missing ['capabilities'] |
| 2026-09-09 10:15 | card-invalid | 30 | 200 | HTTP/1.1 | 340 | 1.0 | detailscapabilities {"era":"0.3","skills_count":1,"skills":["verify_source_claim"],"streaming":null,"push_notifications":null,"security_schemes":["x402"],"bindings":["JSONRPC","JSONRPC","HTTP+JSON"],"signatures":0}meta {"card_url":"https://source-claim-proof.mattskowronis.workers.dev/.well-known/agent-card.json","card":{"name":"Source Claim Proof","version":"1.0.0","provider":{"organization":"Matthew Skowron","url":"https://source-claim-proof.mattskowronis.workers.dev"},"documentationUrl":"https://source-claim-proof.mattskowronis.workers.dev/openapi.json"},"missing_fields":["capabilities"],"http_version":"HTTP/1.1","vantage":"us-east-1"} | missing ['capabilities'] |
| 2026-09-09 09:38 | connect-fail | 1048 | detailsmeta {"vantage":"us-east-1"} | WriteError: | ||||
| 2026-09-08 08:36 | card-invalid | 30 | 200 | 2651 | 1.0 | detailscapabilities {"era":"0.3","skills_count":1,"skills":["verify_source_claim"],"streaming":null,"push_notifications":null,"security_schemes":["x402"],"bindings":["JSONRPC","JSONRPC","HTTP+JSON"],"signatures":0}meta {"card_url":"https://source-claim-proof.mattskowronis.workers.dev/.well-known/agent-card.json","card":{"name":"Source Claim Proof","version":"1.0.0","provider":{"organization":"Matthew Skowron","url":"https://source-claim-proof.mattskowronis.workers.dev"},"documentationUrl":"https://source-claim-proof.mattskowronis.workers.dev/openapi.json"},"missing_fields":["capabilities"],"vantage":"us-east-1"} | missing ['capabilities'] | |
| 2026-09-07 07:40 | connect-fail | 282 | detailsmeta {"vantage":"us-east-1"} | WriteError: |