api.polyform.org time business-days

https://api.polyform.org/v1/time/business-days

answers 402

Business days between two dates (exclusive of end), skipping weekends and US federal holidays; also returns the holiday list in range. Pure computation. JSON.

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.

Price: $0.001
Network: base
Pay to: 0xE9468282B22c09243Ce1a455fE2d1DF0d7276dE6
Spec dialect: v2 (declares x402Version 2)
Transport: PAYMENT-REQUIRED header
HTTP method: GET
Response latency: 13 ms
Payment options: 1 usable of 1
Last checked: 2026-09-06T01:13:08.477Z (2h ago)
Category: other

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fapi.polyform.org%2Fv1%2Ftime%2Fbusiness-days"