### Answer To send call details to a Slack channel after a call ends, you can set up a webhook endpoint that receives Retell AI call events and forwards the data to Slack [(1) ]() [(2) ]() . Here's the approach: 1. Set up a webhook endpoint that receives POST requests from Retell AI [(2) ]() . Your endpoint should listen for the

call_ended

or

call_analyzed

event types [(1) ]() . 2. Register your webhook URL either at the account level (in the dashboard's webhooks tab) or at the agent level (when creating/updating an agent) [(1) ]() [(2) ]() . 3. In your webhook handler, extract the call details from the payload and send them to Slack using Slack's Incoming Webhooks or Web API [(1) ]() . The webhook payload will contain an

event

field and a

call

object with all call details . For example:

json
{
 "event": "call_ended",
 "call": {
 "call_id": "Jabr9TXYYJHfvl6Syypi88rdAHYHmcq6",
 "agent_id": "oBeDLoLOeuAbiuaMFXRtDOLriTJ5tSxD",
 "start_timestamp": 1714608475945,
 "end_timestamp": 1714608491736,
 "disconnection_reason": "user_hangup",
 "transcript": "..."
 }
}

​ To learn more, see the sources I considered: [[1] Webhook Overview](https://docs.retellai.com/features/webhook-overview) [[2] Setup guide](https://docs.retellai.com/features/register-webhook) [[3] Consume the analysis data](https://docs.retellai.com/features/post-call-analysis-consumption) ​

Key considerations: - Wait for the

call_analyzed

event if you need post-call analysis data, as it contains the complete

call_analysis

object [(1) ]() [(3) ]() . - The webhook has a 10-second timeout and will retry up to 3 times if no success status (2xx) is received [(1) ]() . - Return a 2xx status code from your endpoint to acknowledge receipt [(1) ]() [(2) ]() . You can filter which events are delivered per agent using the

webhook_events

field when creating or updating an agent [(1) ]() .

Feel free to tag @AI Evy with additional questions. I also appreciate feedback, it helps me improve.