Welcome to the Simular developer documentation. Here you will find guides and references for scripting with Simulang and the Agent S open-source framework. Sai is Simular’s strongest computer-use agent for when you need maximum capability on real desktop and browser UIs.Documentation Index
Fetch the complete documentation index at: https://docs.simular.ai/llms.txt
Use this file to discover all available pages before exploring further.
Sai and Agent S
1. Sai
Sai is Simular’s strongest computer-use agent — our most capable option when you need deep, reliable automation across real desktop and browser UIs. Details, access, and how Sai fits with the rest of the product line are on the Sai product page.2. Agent S
An open-source framework for agents that control computers like a human — UI, keyboard, and mouse — across environments.- Run agents autonomously inside many kinds of software.
- Extensible with custom integrations and tooling.
- Platforms: macOS, Linux, and Windows.
Simulang (scripting)
Simulang is our layer for scripting desktop automation. This documentation covers two tracks; treat them separately:| Track | What it is | Where to start |
|---|---|---|
| Latest Simulang | Standalone simulang CLI, simulib-js, and the /simulang skill in Claude Code. | Simulang Primer, then Simulang with Claude Code |
| Simulang v0 | Legacy in-app JavaScript-style actions for a deprecated desktop automation surface. Kept for reference and migration only. | Simulang v0 API, Simulang v0 examples |
Next steps
- Read about Sai for Simular’s strongest computer-use agent.
- Choose your Simulang track from the table above (prefer latest for new projects).
- Explore Agent S to build or extend open-source computer-use agents.
- Join the community via Discord and GitHub in the header when you want help or to contribute.