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About

A2UI is a declarative UI protocol designed to enable AI agents to generate rich, interactive user interfaces that render natively across web, mobile, and desktop environments without executing arbitrary code. Instead of relying on text-only interactions or unsafe approaches like sending HTML or JavaScript, A2UI allows agents to communicate UI intent through structured JSON messages that describe components, layouts, and data bindings, which client applications then render using their own trusted, pre-approved components. This approach separates UI generation from UI execution, ensuring that interfaces are secure, consistent with the host application’s design system, and adaptable across platforms. It is designed to be LLM-friendly, using a flat, streaming JSON structure that allows agents to incrementally build and update interfaces in real time, enabling progressive rendering and responsive user experiences.

About

Thesys Agent Builder is a no-code platform for creating and publishing interactive AI applications that respond with structured user interfaces (charts, cards, tables, forms, slides, reports, and more) instead of simple text, powered by the underlying C1 Generative UI engine. You can upload data (files, URLs, databases), connect to tools, configure the agent’s behavior and tone with natural language instructions, pick styles to match your brand, and publish a live agent that can be used on the web or embedded in your site without writing frontend code. It lets you build AI agents that can parse and visualize data, answer questions with interactive insights, generate visual summaries and reports, and provide rich, action-oriented responses from connected data sources in just minutes. It emphasizes real interactivity and practical utility by turning conversations into actionable UI elements that help users explore, analyze, and act on information.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

AI developers and product teams who want to build agent-driven applications where models generate secure, dynamic user interfaces instead of just text responses

Audience

Product teams, startups, and non-technical creators who want to build and embed interactive AI assistants or data-driven AI apps without writing code

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

Free
Free Version
Free Trial

Pricing

$49 per month
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

A2UI
United States
a2ui.org

Company Information

Thesys
Founded: 2024
United States
www.thesys.dev/agent-builder

Alternatives

Alternatives

Agentverse

Agentverse

Fetch.ai
GPTBots.ai

GPTBots.ai

GPTBots
QML

QML

Qt
DemoGPT

DemoGPT

Melih Ünsal

Categories

Categories

Integrations

Claude Sonnet 4
Claude Sonnet 4.5
GPT-5
Gemini 3 Flash
Gemini 3 Pro
Gemini 3.1 Flash-Lite
Gemini 3.1 Pro
Gemini 3.5 Pro
HTML
JSON
JavaScript
n8n

Integrations

Claude Sonnet 4
Claude Sonnet 4.5
GPT-5
Gemini 3 Flash
Gemini 3 Pro
Gemini 3.1 Flash-Lite
Gemini 3.1 Pro
Gemini 3.5 Pro
HTML
JSON
JavaScript
n8n
Claim A2UI and update features and information
Claim A2UI and update features and information
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Claim Thesys Agent Builder and update features and information