Sutro

Sutro is a toolkit for building full-stack LLM applications designed for production use, not just quick prototypes. It offers modular APIs for UI, backend logic, planning, and agent workflows so teams can assemble reliable AI products without stitching together everything from scratch.

Modular frontend and backend APIs

Sutro helps developers and product teams build interfaces and server-side logic around LLMs using reusable building blocks.

• Combine prebuilt modules instead of manually integrating many separate services
• Scale components to fit more complex AI product requirements

Planning and specs from prompts and Figma

A key focus is planning: Sutro turns prompts and Figma designs into structured product specifications to align teams and reduce ambiguity.

• PRD and domain models
• Sitemap
• Happy-path and edge-case user flows
• Two-way sync between specifications and the application

Agentic workflows for real products

Sutro also provides APIs for agentic workflows that can be used in production scenarios.

• Multi-step LLM request chains
• Integrations with external services
• Faster path from idea and prototype to a maintainable AI application