the402 endpoint detail

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finance.payapi.market mortgage-calculator

https://finance.payapi.market/mortgage-calculator

payable

UK mortgage payment calculator: monthly payment, total interest, LTV, repayment or interest-only.

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.001
Network
base
Pay to
0xFFc458dB291b4ABcE020fE3de4f91F2770E537b1
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
430 ms
Payment options
1 usable of 1
Last checked
2026-08-10T09:14:08.252Z (1d ago)
Category
other

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Ffinance.payapi.market%2Fmortgage-calculator"