the402 endpoint detail

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api.trustsource.cc headers

https://api.trustsource.cc/headers

payable

Audit a site's HTTP security headers before embedding, scraping, or trusting it. Returns an A+ to F grade and 0–100 score with structured analysis of HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy, and Cross-Origin headers, plus server-header disclosure. A defense-in-depth signal for agents reviewing a site's security posture — not a vulnerability scan.

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.003
Network
base
Pay to
0xC1FE5Ce97fB6038527D9660cF290b716a264e874
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
84 ms
Payment options
1 usable of 1
Last checked
2026-08-10T09:13:51.344Z (1d ago)
Category
ai-inference

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fapi.trustsource.cc%2Fheaders"