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📱

Twilio API

Messaging

Send SMS, WhatsApp messages, and make voice calls programmatically.

Twilio provides communication APIs for SMS, WhatsApp, voice calls, and video. Build messaging workflows, send notifications, and create voice applications.

Details

Auth Type
Basic Auth (Account SID:Auth Token)
Rate Limit
100 messages/second
Pricing
From $0.0079 per SMS
Full Docs
Step 1: Save your provider key

This is NOT your Callio key. Enter the API key from the provider's dashboard (e.g. The API key from the provider's dashboard).

Basic Auth (Account SID:Auth Token)

Sign up at twilio.com and get your Account SID and Auth Token from the console.

Get API Credentials

Getting Started

1

Try It Instantly

Click "Try It" above to test the API in the playground

2

Add to Your Agent

Click "Add to Agent" to get your API key and integrate

Common Use Cases

SMS notifications
WhatsApp messaging
Voice calls
Two-factor auth
Appointment reminders

💻 Code Examples

Get started quickly with these code examples in your favorite language

curl -X GET \
  'https://callio.app/api/proxy/twilio/forward?target=https%3A%2F%2Fapi.twilio.com%2F2010-04-01%2Fendpoint' \
  -H 'Authorization: Bearer YOUR_CALLIO_KEY' \
  -H 'Content-Type: application/json'

💡 Tip: Replace YOUR_CALLIO_KEY with your actual Callio API key from the dashboard.

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