C1 by Thesys
C1 by Thesys is an API middleware that transforms large language model (LLM) responses into live, adaptive user interfaces in real time, enabling developers to build dynamic AI-powered apps with interactive UI components like forms, charts, and tables.
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What it does
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C1 by Thesys
C1 by Thesys is an API layer built on top of large language models (LLMs) that converts their text responses into structured, interactive UI components such as forms, tables, charts, and layouts. It uses a React SDK to render these live interfaces in real time, allowing developers to create intelligent, context-aware frontends for AI-powered applications without hardcoding UI for every possible user interaction. Supporting multiple LLM providers including OpenAI and Anthropic, C1 offers flexibility and customization to match company design systems, leveraging Crayon's UI library for theming and component support. It is designed for teams building AI-native software agents, copilots, and tools where dynamic, evolving interfaces are essential.
Make AI apps respond with interactive UI in real-time
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Claim this listingKey Features
Real-time Adaptive UI
Transforms LLM responses into live, interactive user interfaces that adapt dynamically to user input and context.
Multi-LLM Support
Works out of the box with leading LLMs including OpenAI and Anthropic, with ongoing additions for broader compatibility.
React SDK
Provides a React software development kit to render structured UI components directly in applications.
Customizable Design System
Built on Crayon's UI library, allowing customization of themes, tokens, and components to match company branding.
Structured UI Components
Outputs UI elements such as forms, tables, charts, cards, and layouts instead of plain text.
Fast and Secure
Designed for fast, secure, and real-time rendering of dynamic interfaces.
Pricing
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Use Cases
AI-Native Software Agents
Build intelligent agents that interact with users through dynamic, context-aware interfaces.
Copilots and Assistants
Create AI copilots that adapt their UI in real time based on user queries and state.
Dynamic Task-Specific Interfaces
Develop tools with interfaces that evolve quickly to meet changing user needs without static UI limitations.
Rapid Prototyping and Deployment
Accelerate time to market by generating live UI components directly from LLM outputs.
Integrations
OpenAI
Supports OpenAI models for generating LLM responses.
Anthropic
Supports Anthropic models for LLM responses.
Crayon UI Library
Enables UI customization and theming through Crayon's component library.
Benefits
Limitations
Frequently Asked Questions
What does C1 by Thesys do?
Which LLMs does C1 support?
Can I customize the UI generated by C1?
Is C1 suitable for production applications?
Getting Started
- 1 Step 1: Obtain an API key from Thesys and set up your environment variable THESYS_API_KEY.
- 2 Step 2: Use the provided OpenAI client with the Thesys base URL to make chat completion requests.
- 3 Step 3: Integrate the C1 React SDK in your frontend to render the structured UI components returned by the API.
Support
docs
Documentation and API usage examples are available on the Thesys website.
contact
Contact can be made via the Thesys contact page for support inquiries.
API
API documentation and usage examples are available on the Thesys website and include usage of the OpenAI client with a custom base URL.
Rate limit information is not provided in the available content.
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