TL;DR: Libretto is a Y Combinator Spring 2025 startup Turn website workflows into reliable APIs, currently active with a team of 2.
Turn website workflows into reliable APIs
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Libretto is an open-source CLI that lets agents turn website workflows into fast, reusable scripts you can deploy The problem: Most browser automation tools work by sending an AI agent to operate a website in real time, like a robot typing and clicking on your behalf. This is slow, expensive, and unpredictable. They rely on fragile DOM parsing that breaks on legacy and complex sites, and you can never fully trust what the agent will do on unintuitive or inconsistent workflows. Our approach: Libretto helps your coding agents generate workflows as actual, readable code during development, not at runtime. Under the hood it combines Playwright with direct in-session network/API calls for reliability and bot detection evasion. It also supports step-through debugging and a read-only mode to pre…
Yes. Libretto was funded by Y Combinator in the Spring 2025 batch. Turn website workflows into reliable APIs
Libretto is an open-source CLI that lets agents turn website workflows into fast, reusable scripts you can deploy The problem: Most browser automation tools work by sending an AI agent to operate a website in real time, like a robot typing and clicking on your behalf. This is slow, expensive, and unpredictable. They r…
Libretto was part of Y Combinator's Spring 2025 batch.
Libretto has a team of 2 people according to Y Combinator's directory.
Libretto is currently listed as Active with a team of 2 in Y Combinator's directory.
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