---
title: "Recursive AI"
url: https://recursiveai.org/
description: "Recursive AI builds open-source libraries, APIs that agents can call, and free web tools. One person and a fleet of agents, building in the open."
---

# We build open tools for software that agents and people use.

Open-source libraries, APIs that agents can call, and free tools that run in your browser.

[Talk to us partners@recursiveai.org](mailto:partners@recursiveai.org)

## What we’re building

### Open-source libraries (Available)

Small, focused libraries for everyday file formats, starting with YAML.

**oneyaml**: YAML for Rust, with typed reads and edits that keep your comments. C# and Go are next.

[oneyaml](https://recursiveai.org/oneyaml/)

### APIs for agents and apps (Coming soon)

Hosted APIs for documents and data, designed for AI agents to call. Pay as you go, with a free allowance first.

[See the APIs](https://recursiveai.org/apis/)

### Free web tools (Coming soon)

Everyday file and data tools that run in your browser. Free, no account.

[See the tools](https://recursiveai.org/tools/)

## Built by one person and a fleet of agents

Recursive AI is Kurtis Welch and a fleet of AI agents working on Alera, the system he built for making software with agents. Agents write, test and ship the code; Kurtis decides what to build. Sponsorship helps fund the open-source work it produces.

- [How Alera works](https://recursiveai.org/alera/)
- [About Kurtis](https://recursiveai.org/about/)

## What we built this week

A public log of what we finish each day.

[Read the full devlog](https://recursiveai.org/devlog/)

## Want to know more about Alera, how you can sponsor our work, or how Alera might accelerate your own projects?

[partners@recursiveai.org](mailto:partners@recursiveai.org)