Telnyx is a communication platform that offers SMS, voice, fax, and phone number management through a unified API. Relevance AI enhances Telnyx by enabling AI Agents to automate and optimize communication processes, making your applications smarter and more responsive.



Telnyx provides a robust platform for SMS, voice, and fax communications. With Relevance AI, you can leverage these capabilities to create intelligent workflows that respond dynamically to user interactions and events.
Global Communication Orchestration
Empowers AI agents to seamlessly manage and coordinate communications across multiple channels and countries with enterprise-grade reliability.
Intelligent Channel Optimization
Automatically selects and routes communications through the most effective channels based on user preferences and message urgency.
Unified Communication Analytics
Provides comprehensive insights across all communication channels for continuous improvement and performance optimization.
Relevance AI seamlessly integrates Telnyx's communication capabilities into your workflows, enhancing your applications with powerful messaging and call features.
What you’ll need
You don't need to be a developer to set up this integration. Follow this simple guide to get started:
- A Telnyx account
- A Relevance AI account with API access
- Authentication credentials from both platforms (API keys will be required)
Security & Reliability
The Telnyx integration utilizes a unified API interface to provide robust communication capabilities, including SMS, voice, fax, and phone number management. This integration allows developers to seamlessly implement enterprise-grade communication features into their applications.
With secure OAuth authentication, only authorized workflows can access your Telnyx data. The integration handles API operations (like sending messages, making calls, and sending faxes) in the background—eliminating concerns about errors, formatting, or limits.
Built-in validation ensures that phone numbers are in the correct E.164 format, and type conversion guarantees that your workflows run smoothly, even when data formats vary. Additionally, webhook-based event notifications keep your application updated with real-time events.
No training on your data
Your data remains private and is never utilized for model training purposes.
Security first
We never store anything we don’t need to. The inputs or outputs of your tools are never stored.

To get the most out of the Telnyx + Relevance AI integration without writing code:
- Start with a clear Telnyx account setup: Ensure your account is active and has the necessary permissions for messaging, call control, and faxing.
- Utilize pre-built workflows: Relevance AI provides templates for sending SMS, making calls, and sending faxes—perfect for quick implementation.
- Connect carefully: Make sure to use the correct API key and messaging profile ID during the integration setup.
- Test before scaling: Conduct tests with a small number of messages or calls to ensure everything is functioning as expected.
- Monitor webhook responses: Regularly check your webhook logs to ensure events are being received and processed correctly.