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tariffmonkee.com paid sitegrade
https://tariffmonkee.com/paid/sitegrade
answers 402
Domain -> security letter grade (0-100, A-F) from HTTPS reachability, security headers (HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy), and CAA records. Reports HTTPS connect success/failure, not raw cert expiry -- Workers can't read a remote server's cert metadata directly. For registration facts use /domain-intel; for URL reputation use /linkcheck.
We sent a real
GET request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.05
- Network
- base
- Pay to
- 0x0FAD15c9f4C38f439fd56C4d4e4Bc8fC71c42767
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- GET
- Response latency
- 86 ms
- Payment options
- 2 usable of 2
- Last checked
- 2026-09-06T01:22:49.415Z (34d ago)
- Category
- identity
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Ftariffmonkee.com%2Fpaid%2Fsitegrade"