Hullo is a platform that enables businesses to programmatically manage SMS communications and member data through a unified API interface. By integrating with Relevance AI, you can transform your SMS interactions into smart, data-driven engagements powered by AI.



Hullo empowers businesses to manage SMS communications and member data effortlessly. With Relevance AI, you can enhance these capabilities by leveraging intelligent AI Agents to automate and optimize your messaging strategies.
Voice-Powered Communication Mastery
Enables AI agents to handle complex voice interactions with natural language processing and real-time analytics
Intelligent Conversation Flow
Leverages multi-intent recognition to navigate complex customer requests with contextual understanding
Real-time Sentiment Intelligence
Analyzes call sentiment and tone to deliver emotionally aware responses and personalized interactions
Relevance AI seamlessly integrates Hullo's SMS capabilities into your automated 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:
- A Relevance AI account
- An Airtable account with access to the base and table you'd like to use
- Authorization (you'll connect securely using OAuth—no sensitive info stored manually)
Security & Reliability
The integration between Hullo and Relevance AI utilizes a unified API interface, allowing businesses to manage SMS communications and member data programmatically. With secure OAuth authentication, only authorized workflows can access your Hullo data, ensuring a seamless experience.
This integration enables you to send automated SMS messages, manage member profiles and groups, and make authenticated API calls to Hullo's services—all while integrating SMS capabilities into your existing workflows.
Relevance AI handles API operations (like adding or updating members, sending SMS messages, and making custom API calls) in the background, so you don’t have to worry about errors, formatting, or limits. Built-in validation and type conversion ensure your workflows run smoothly, even when data formats vary.
To get started, ensure you have the required accounts and credentials, including a Hullo account with API access and OAuth credentials with the necessary permissions. Follow the installation and setup instructions to configure OAuth authentication and set up the base URL.
For common issues, such as authentication errors or message sending issues, refer to the troubleshooting section for solutions and best practices to optimize your API usage and member management.
For further assistance, consult the Hullo API documentation, OAuth configuration guide, and rate limiting guidelines.
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 Hullo + Relevance AI integration without writing code:
- Start with a clean member database: Use clear member attributes and consistent data formats.
- Utilize automated workflows: Relevance AI provides pre-built workflows for sending SMS, updating member profiles, or managing groups—perfect for quick implementation.
- Connect carefully: Ensure you authorize the correct Hullo account and set the appropriate permissions during setup.
- Test before scaling: Send messages and manage members using test data first to avoid large-scale errors.
- Monitor API usage: Implement caching and error handling to optimize performance and avoid hitting rate limits.