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api.fetchx402.com tools headers
https://api.fetchx402.com/v1/tools/headers
answers 402
Read allowlisted HTTPS response headers for a hostname (HSTS, CSP, server, CORS). Use when you need live origin headers and must not guess. HEAD of https://{domain}/ on :443; GET if HEAD is 405/501. Redirects are not followed.
We sent a real
GET request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.005
- Network
- base
- Pay to
- 0x33236133BecE789D551d0B5c4f9A50095d4b57d3
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- GET
- Response latency
- 1618 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-09-06T01:13:30.577Z (2h ago)
- Category
- web-scraping
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fapi.fetchx402.com%2Fv1%2Ftools%2Fheaders"