The official NSE trading-holiday calendar and a weekend/holiday-aware "is this a trading day" check — no account, no API key. Pay a fraction of a cent per call with x402.
◎ from 0.005 USDC per request| Endpoint | What you get | Price |
|---|---|---|
GET /holidays/calendars | Which calendars are supported (discovery) | free |
GET /holidays/nse | Full NSE equities holiday list | $0.005 |
GET /holidays/is-trading-day/{date} | Open/closed on an ISO date + reason | $0.005 |
# Free discovery — no payment
curl https://holidaysapi.hillguava.xyz/holidays/calendars
# Paid — returns 402 with payment terms; sign USDC on Base and retry with X-PAYMENT
curl https://holidaysapi.hillguava.xyz/holidays/is-trading-day/2026-01-26