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.