Receive Event Notifications with Webhooks

Configure an endpoint, and Dasha BlackBox sends HTTP POST requests whenever calls start, end, fail, or need tool execution. Your server processes these events to update CRM systems, trigger workflows, or customize agent behavior.

Webhook types

Webhook	When it fires	What you get
Start	Conversation begins	Caller info, agent config
Result	Conversation ends	Full transcript, duration, status
Tool	Agent invokes a tool	Tool name, parameters
Failed	Call fails	Error details
Deadline	Call times out	Timeout info

Result webhook

When a call ends, your server receives the full conversation data.

Example: Result webhook payload

{
  "type": "CompletedWebHookPayload",
  "status": "Completed",
  "callId": "call_abc123",
  "agentId": "agent_xyz789",
  "durationSeconds": 127,
  "transcription": [
    { "speaker": "assistant", "text": "Hi, how can I help you today?" },
    { "speaker": "user", "text": "I need to check on my order" }
  ],
  "result": {
    "finishReason": "user_hangup",
    "postCallAnalysis": {}
  },
  "inspectorUrl": "https://blackbox.dasha.ai/calls/call_abc123"
}

Common patterns

Log to CRM — Send transcript to Salesforce, HubSpot after every call. Dynamic configuration — Use start webhook to customize agent behavior per-caller (load customer history, set special instructions). Alerting — Notify Slack when calls fail or contain certain keywords. Analytics — Pipe results to your data warehouse for custom reporting.

What’s next

Webhooks Overview

Complete webhooks guide

Tools

Let your agent take actions

Post-Call Analysis

Extract insights from conversations

WebSockets

Real-time bidirectional communication

Tools Quickstart

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Introduction

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Test

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Advanced Features

Troubleshooting

Webhook types

Result webhook

Common patterns

What’s next

Webhooks Overview

Tools

Post-Call Analysis

WebSockets

​Webhook types

​Result webhook

​Common patterns

​What’s next

Webhooks Overview

Tools

Post-Call Analysis

WebSockets

Webhook types

Result webhook

Common patterns

What’s next