Webhooks
Send real-time POST requests to any URL when calls complete
What It Does
Callengo sends a JSON POST request to your configured URL every time a call completes. This lets you build custom integrations with any system that can receive HTTP requests: your own backend, Zapier, Make.com, or any other automation tool. The payload includes all call data: outcome, sentiment, transcript, recording URL, extracted fields, and more.
Why Connect Callengo with Webhooks
Connecting Callengo AI voice agents with Webhooks eliminates manual data entry and ensures your workflows run automatically after every AI phone call. Instead of copying call results between systems, the Callengo and Webhooks integration handles it instantly.
When a Callengo AI agent completes a call — whether it's confirming an appointment, validating contact data, or qualifying a lead — the results flow directly into Webhooks. This means your team always has the latest information without lifting a finger. No more stale data, missed updates, or manual reconciliation between systems.
Businesses using Callengo with Webhooks report saving 15-20 hours per week on manual data entry and see a 40-60% improvement in data accuracy. The integration supports all three Callengo AI agents and works with your existing Webhooks configuration — no changes to your current setup required.
How Callengo AI Voice Agents Work with Webhooks
Here's the end-to-end flow when you use Callengo with Webhooks:
- Import contacts — Upload contacts via CSV, Google Sheets, or sync from your existing tools.
- Configure your AI agent — Choose Data Validation, Appointment Confirmation, or Lead Qualification. Customize the call script and voice.
- Launch the campaign — Callengo's AI agents call your contacts automatically, handling conversations naturally.
- Automatic Webhooks sync — Call results (outcomes, verified data, lead scores, appointment statuses) are pushed to Webhooks in real time.
- Review and act — Your team sees updated records in Webhooks immediately, ready to follow up on hot leads, confirmed appointments, or updated contacts.
The entire process is hands-off after initial setup. Callengo handles the calling, the conversation, the data extraction, and the Webhooks sync. Your team focuses on the outcomes, not the process.
Step-by-Step Setup Instructions
- 1
Go to Settings > Integrations and click Connect next to Webhooks.
- 2
Enter your webhook endpoint URL (must be HTTPS).
- 3
Optionally add a secret key for payload signature verification (HMAC-SHA256).
- 4
Select which events should trigger the webhook: call completed, campaign finished, or both.
- 5
Configure the payload format: choose which fields to include or send the full payload.
- 6
Set retry policy: Callengo retries failed deliveries up to 3 times with exponential backoff.
- 7
Save and send a test webhook to verify your endpoint receives the payload.
Synced Data Fields
- Call ID and campaign ID
- Contact: name, phone, email, company, custom fields
- Call outcome, sentiment, lead score
- Call duration (seconds)
- Transcript (full text or URL)
- Recording URL
- Extracted data fields (all custom fields defined in the campaign)
- Appointment details (if applicable): date, time, video link
- Timestamp (ISO 8601)
- Event type: call.completed or campaign.finished
Plan Requirement
This integration is available on the Starter plan and above. View pricing
Common Use Cases
- Building custom integrations with internal systems or databases.
- Triggering workflows in Make.com, n8n, or other iPaaS tools.
- Sending call data to a data warehouse for analytics.
- Creating custom notification systems (email, SMS, push) based on call outcomes.
Key Benefits of the Callengo + Webhooks Integration
Zero Manual Data Entry
Call results sync to Webhooks automatically after every AI call.
Real-Time Updates
Data flows in seconds, not hours. Your team always has the latest information.
No Code Required
Connect in minutes with guided setup. No developers or IT team needed.
Works With All 3 Agents
Data Validation, Appointment Confirmation, and Lead Qualification all sync with Webhooks.
Limitations & Notes
- Your endpoint must return a 2xx HTTP status code within 10 seconds or the delivery is considered failed.
- Maximum payload size is 1 MB per webhook event.
- Webhooks are sent asynchronously. There is no guaranteed ordering of events.
- If your endpoint is down, Callengo retries 3 times over 15 minutes before marking the delivery as failed.
- Webhook logs are retained for 30 days in the Callengo dashboard.
- Available on Business plan and above.
Frequently Asked Questions
- How do I connect Webhooks to Callengo?
- To connect Webhooks, navigate to Settings > Integrations in your Callengo dashboard and click "Connect" next to Webhooks. Go to Settings > Integrations and click Connect next to Webhooks. The setup takes just a few minutes and requires no coding. Once connected, data syncs automatically after every AI call.
- What data syncs between Callengo and Webhooks?
- Callengo syncs the following data with Webhooks: Call ID and campaign ID, Contact: name, phone, email, company, custom fields, Call outcome, sentiment, lead score, Call duration (seconds), Transcript (full text or URL), and more. All data flows are automatic and happen in real time after each call completes. You can customize which fields sync in your integration settings.
- Which Callengo plan do I need for the Webhooks integration?
- The Webhooks integration is available on the Starter plan and above. You can start with a free trial that includes 15 minutes of AI calling to test the integration. No credit card required. If you need Webhooks, choose the Starter plan ($99/mo) or higher.
- Can I use Webhooks with all three Callengo AI agents?
- Yes, the Webhooks integration works with all three Callengo AI agents: Data Validation (verify contact information), Appointment Confirmation (confirm, reschedule, or cancel appointments), and Lead Qualification (score leads using BANT framework). Each agent type syncs relevant data to Webhooks based on call outcomes.
- Is the Callengo and Webhooks integration secure?
- Yes. Callengo uses OAuth 2.0 or secure API key authentication to connect with Webhooks. All data is encrypted in transit (TLS 1.2+) and at rest. Callengo is SOC 2 aligned, GDPR compliant, and follows TCPA regulations. You can revoke access to Webhooks at any time from your dashboard.
- How long does it take to set up Callengo with Webhooks?
- Most users connect Callengo with Webhooks in under 5 minutes. The setup involves authenticating your Webhooks account, mapping a few data fields, and running a test. No coding or IT involvement is required. Our step-by-step guide walks you through every click.
- What happens if the Webhooks connection is lost?
- If the connection to Webhooks is temporarily lost, Callengo queues all data locally and alerts you via email and dashboard notification. Once reconnected, all queued data syncs automatically. No call data is ever lost during disconnection periods. You can also manually trigger a resync from your dashboard.
- Can I customize which data Callengo sends to Webhooks?
- Yes. Callengo's integration settings allow you to map specific data fields, choose which call outcomes trigger syncs, and configure filters. For example, you can choose to only sync "hot" lead scores to Webhooks, or only create records when appointments are confirmed. Field mapping is fully customizable.
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