Documentation
API reference
RESTful JSON API for NPA-NXX lookups, LRN dips, coverage data, and rate deck queries. All endpoints are served over HTTPS with API key authentication.
Authentication
Include your API key in the Authorization header:
Authorization: Bearer YOUR_API_KEYPublic endpoints (health, coverage summary) do not require authentication.
Base URL
https://api.sip-terminator.comAll endpoints return JSON. Errors use standard HTTP status codes with a { error, detail } body.
Rate limits
General endpoints
30 req/s per IP
Lookup endpoints
10 req/s per IP
Responses are micro-cached for 30s at the edge. Include Cache-Control: no-cache to bypass.
Endpoints