CTD API

Build relationship intelligence into your internal tools. CTD exposes everything — paths, warmth scores, reachable contacts, job changes, ghost emails — via a REST API.

API overview & authentication

Authentication, API keys, and which tier you need.

User API — Freemium (free+)

Contacts, company lookups, relationship paths, job changes, and ghost emails — available on any CTD plan.

User API — Team & Business

Warm path search, reachable people and companies, path stage management — available on Team and Business plans.

Admin-only integration API. Global paths, target accounts import, and custom columns — for system integrations, not individual use.

Building your relationship intelligence stack

If you're consolidating tools into an internal platform, CTD exposes everything. Here's how to think about the integration.