Example Webhook Payload

If you are wiring the agent into Zapier, Make, n8n, or a custom endpoint, here is the shape of the JSON the agent POSTs after every call. The call_data.call_summary field is the same summary described above; transcription is the full turn-by-turn log.

{
  "event_type": "call_end",
  "timestamp": "2026-04-21T12:36:10.500445Z",
  "call_data": {
    "call_id": "ai_usage_5329",
    "usage_id": 5329,
    "start_time": "2026-04-21T12:35:28.585122",
    "end_time": "2026-04-21T12:36:06.560710",
    "duration_seconds": 37,
    "duration_minutes": 0.62,
    "caller_number": "7045551234",
    "call_summary": "# Call Summary\n\nThe caller contacted Generic Phones to inquire about the company's services. The agent provided an overview of Generic Phones' offerings, explaining that they provide cloud-based communication solutions including business phone systems, video conferencing, and customer integrations for businesses of various sizes. The caller ended the call without requesting additional information or scheduling any follow-up.",
    "transcription": "Agent: Thank you for calling Generic Phones. You have reached Sumner's virtual assistant, how may I direct your call?\nCustomer: Yeah. I'm just calling to learn about what you guys do.\nAgent: Generic Phones is a provider of cloud-based communication solutions specializing in unified communications as a service. They offer services such as business phone systems, video conferencing, and customer integrations, all designed to improve communication and collaboration for businesses of various sizes. Would you like information on any specific service?\nCustomer: Cool, thanks. Bye.\nAgent: Thank you for calling Generic Phones. Have a great day. Goodbye.",
    "recording_url": "https://recordings.calldacity.com/aiagentrecordings/111111111/sumnersawesomephones/SumnerAid/2026/04/21/5329.wav",
    "trial_usage": true
  },
  "receptionist_data": {
    "receptionist_id": 411,
    "receptionist_name": "Bob",
    "extension": "6301",
    "reception_type": "basic"
  },
  "metadata": {
    "webhook_version": "1.0",
    "delivery_attempt": 1,
    "receptionist_integration_id": 376
  }
}

Notes on the fields you will use most often:

• call_data.call_summary — the AI-written recap. Returned as Markdown (it typically begins with Call Summary). Render it as Markdown in your destination, or strip the heading if your tool cannot.
• call_data.transcription — the full turn-by-turn transcript as a single newline-separated string. Each line is prefixed with Agent: or Customer:.
• call_data.caller_number — the caller's number as presented on the call. May be a full E.164 number for outside callers or a short internal extension for on-system calls.
• call_data.recording_url — an URI pointing at the stored recording. May be null if recording is disabled.
• call_data.trial_usage — true for calls made against a trial account, false for production usage. Useful for filtering test traffic out of CRM automations.
• call_data.start_time / end_time — ISO 8601 timestamps in UTC with microseconds. Note these are returned without a trailing Z; the outer timestamp field does include the Z. Treat both as UTC.
• receptionist_data.extension — the extension the agent answers on. Handy for routing logic when the same webhook serves multiple agents.
• receptionist_data.reception_type — basic, ai_receptionist, or the specific agent type. Lets downstream automations branch on agent kind.
• metadata.delivery_attempt — starts at 1. If the agent retries delivery after a 5xx response, this increments.