Heytelmi

Developers

Run your calls from code

REST API, click-to-call, signed event subscriptions and MCP; everything in the panel is also in the API.

Developers

  • REST API

    Start and end calls, transfer, manage campaigns, read recordings and transcripts. Credentials are limited by permission sets.

  • Click-to-call

    One request calls the agent first, then the customer; protected against retries with Idempotency-Key.

  • Event subscriptions

    Call, campaign, booking and PBX events are signed with HMAC-SHA256; failed deliveries are retried at increasing intervals.

  • MCP

    AI assistants can connect to your account with the permissions of a credential.

Click-to-call request

POST /v1/live-calls
Authorization: Bearer sk_live_...
Idempotency-Key: 9b2f1c7e-crm-4711-btn

{
  "mode": "bridge",
  "agent": { "extension": "101" },
  "destination": "05XXXXXXXXX",
  "record": true,
  "metadata": { "crm_contact_id": "4711" }
}