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2s.io medical npi
https://2s.io/api/medical/npi
answers 402
Look up US healthcare providers in the CMS NPPES registry — the authoritative directory of National Provider Identifiers (NPIs). Give an exact 10-digit NPI, or search by provider last name (+ optional first name), or organization name, optionally narrowed by state and taxonomy/specialty. Returns each provider with NPI, entity type (individual vs organization), status, name/credential/gender or org
We sent a real
GET request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.0027
- Network
- base
- Pay to
- 0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- GET
- Response latency
- 166 ms
- Payment options
- 2 usable of 2
- Last checked
- 2026-09-06T01:22:29.055Z (2h ago)
- Category
- search
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2F2s.io%2Fapi%2Fmedical%2Fnpi"