the402 endpoint detail

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api.trustsource.cc emailtrust

https://api.trustsource.cc/emailtrust

payable

Grade a domain's email-authentication posture (SPF, DKIM, DMARC, BIMI, MX) and tell an agent whether the sender can be spoofed. Returns an A–F grade, a `spoofable` flag, the parsed DMARC policy and SPF qualifier, and specific misconfiguration issues. Use to judge a sender domain before trusting an email, or to confirm your own outreach domain won't be silently rejected by Gmail/Yahoo/Microsoft's 2

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
308 ms
Payment options
1 usable of 1
Last checked
2026-08-10T09:13:51.395Z (1d ago)
Category
identity

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