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Sutro is a powerful toolkit for building full-stack apps with LLMs. It is designed for teams working on AI app builders, internal tool generators, no-code platforms and LLM-driven IDEs. Sutro’s APIs handle the infrastructure and guardrails, so you can focus on product logic and user experience.

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Sutro’s APIs

Sutro is made up of three powerful APIs. Each can be used independently or combined to power your entire app builder workflow:

Planning

Translate prompts, Figma designs, and other inputs into structured specifications.

Frontend

Generate and edit complete, multi-page frontends with built-in navigation, structure, and reliability.

Backend

Generate and edit production-ready backends with built-in security, compliance, and hosting.

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Examples

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Turn Figma designs into HTML and CSS

Input: Figma

The original Figma design with all visual elements, typography, and layout.Full landing page design used as input for this Figma-to-code example

Output: Generated bundle

The static web page bundle generated by Sutro, matching the design specifications.Static site bundle generated from Sutro (output)
See the full example here.

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Turn a range of inputs into product specifications

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Create fully-fledged frontends from a single prompt

CRM prompt

Build me a CRM app to help me track my customers and the activities I have with each of them.

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Build production-ready backends with OpenAPI specs

To-do prompt

Build me an API server that helps users track To Dos. It should include the ability to set deadlines on To Do items, as well as mark them completed.
You can see the output API documentation for this example here.

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Need something else?

For questions or feedback, contact us at [email protected]