Trust signals
Pricing
FREE
Auth
NONE
CORS
No
Rate limit
No documented rate limits
Health
429ms
Trust score
84 (B)
Last checked Oct 19, 2026 · uptime 24h 100% / 7d 100% / 30d 100%
Strong candidate; weakest signal is CORS.
Links
- Homepagenpiregistry.cms.hhs.gov
- Documentationnpiregistry.cms.hhs.gov/registry/help-api
- Base URLnpiregistry.cms.hhs.gov/registry/help-api
Integration checklist
- Auth is NONE
- No CORS — route calls through your backend.
- Rate limit: No documented rate limits