Public API overview

REST API, OAuth, scopes, and rate limits.

5 min read Updated 2026-04-24

The Open Doors public API is a REST API at services.leadconnectorhq.com. Authentication is OAuth 2.0 for installable apps, or a private integration token (PIT) for single-tenant scripts.

  • Versioned — v2 current, v1 deprecated.
  • JSON request/response.
  • Rate limited — 100 req/10s per token by default.
  • Pagination via limit/offset and cursor-based where relevant.