Lettria is a powerful integration platform that offers Natural Language Processing through a RESTful API, enabling developers to classify text and analyze sentiment. With Relevance AI, you can elevate your text processing capabilities by leveraging AI Agents to transform raw data into meaningful insights.



Lettria provides robust Natural Language Processing capabilities, allowing for advanced text classification and sentiment analysis. Relevance AI amplifies these features by enabling intelligent AI Agents to automate insights and actions based on your text data.
French Language Mastery
Empowers AI agents with native-level understanding and processing of French language nuances and context
Cultural Fluency
Understands and appropriately responds to French cultural references and communication styles
Semantic Intelligence
Enables deep comprehension of French text meaning, intent, and emotional undertones for more nuanced interactions
Relevance AI seamlessly integrates with Lettria to enhance your text analysis 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 Lettria integration leverages a robust RESTful API to provide advanced Natural Language Processing (NLP) capabilities, enabling developers to classify text, conduct sentiment analysis, and extract actionable insights from raw text data. This integration ensures secure OAuth-based authentication, allowing only authorized workflows to access your NLP functionalities.
With a simple REST API interface, you can easily implement text classification and analysis without worrying about complex setups. The integration handles API operations (like POST for text classification and GET for custom endpoints) seamlessly, ensuring that you can focus on deriving insights rather than managing errors or formatting issues.
Built-in validation checks and structured response formats guarantee that your workflows run efficiently, even when dealing with varying data formats. For a smooth integration experience, ensure that you have the necessary OAuth credentials and permissions configured correctly.
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 Lettria + Relevance AI integration without writing code:
- Start with clear text data: Ensure your input text is well-structured and free of unnecessary formatting for optimal classification results.
- Utilize pre-built workflows: Leverage Relevance AI's templates for text classification and sentiment analysis to streamline your integration process.
- Configure OAuth carefully: Double-check your OAuth credentials and permissions to ensure seamless API access.
- Test with sample data: Validate your API calls using sample text before deploying on live data to minimize errors.
- Monitor API usage: Keep an eye on rate limits and implement error handling to manage API response errors effectively.