Esendex is a leading business messaging platform that enables organizations to engage customers through SMS, email, and voice channels.
Enhance your customer communications with AI Agents that can automatically respond, personalize, and manage conversations across channels.



Esendex delivers powerful multi-channel messaging capabilities for business communications. Relevance AI transforms these capabilities into intelligent AI Agents that can engage in personalized, context-aware customer interactions at scale.
Seamless Communication Orchestration
The agent can effortlessly manage multi-channel interactions, ensuring consistent messaging across platforms.
Dynamic Personalization Mastery
Utilizing customer data, the agent tailors communications to enhance engagement and relevance.
Automated Workflow Efficiency
The agent streamlines processes by automating routine tasks, reducing manual effort and response times.
Relevance AI gives you access to Esendex's messaging capabilities within your AI-powered workflows.
What you’ll need
You don't need to be a developer to set up this integration. Follow this simple guide to get started:
- An Esendex account
- A Relevance AI account with access to your projects
- Authorization (you'll connect securely using API keys—no sensitive info stored manually)
Security & Reliability
The integration uses secure OAuth authentication, ensuring only authorized workflows access your Esendex messaging services. Relevance AI handles API operations in the background while managing message delivery, status tracking, and response handling—so you don't have to worry about technical complexities.
Built-in validation ensures your SMS and voice messaging workflows run reliably, with automatic formatting and delivery confirmation.
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.

Best Practices for Non-Technical Users
To get the most out of the Esendex + Relevance AI integration without writing code:
- Configure API access properly: Ensure OAuth credentials are correctly set up with appropriate permissions.
- Structure message templates: Create standardized message formats for consistent communication.
- Monitor message status: Track delivery receipts and response rates for optimal performance.
- Implement rate handling: Space out bulk message requests to prevent API throttling.
- Validate endpoints: Test API paths and methods with small batches before full deployment.