the402 endpoint detail

← All endpoints

finance.openverbs.com v1 present-value

https://finance.openverbs.com/v1/present-value

answers 402

Present value of a future sum and/or a level annuity, given a per-period rate and number of periods. Set dueAtBeginning=true for an annuity-due.

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.004
Network
base
Pay to
0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
192 ms
Payment options
1 usable of 1
Last checked
2026-09-06T01:20:14.968Z (23d ago)
Category
other

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Ffinance.openverbs.com%2Fv1%2Fpresent-value"