---
# Copy mirrors the hero and feature bullets in src/pages/home.tsx; the agent
# links below mirror public/llms.txt. Update the counterparts together.
title: Limrun | Extend your sandbox with Xcode, iOS & Android Simulators
description: Build, test, and preview mobile apps directly in your cloud sandbox. Realtime remote Xcode and cloud simulators for AI agents.
url: https://limrun.com/
---

# Limrun: Unlock cloud agents for mobile dev teams

We provide real-time remote Xcode, iOS & Android Simulators so your cloud
agent can build, validate and share its work with you through demo videos and
live preview. Backed by Y Combinator.

## What you can do

- **Compile Xcode projects remotely.** Sync code and trigger a remote build,
  stream build logs in realtime, attach to a simulator for fast reload, and
  keep warm builds with an S3-backed cache. Pricing is split between idle and
  build time.
- **Interact with simulators via CLI.** Built-in accessibility tree calls or
  your favorite testing framework, 60fps video recording, realtime log
  streaming from the running app, and batch actions for millisecond precision.
- **Share preview links on PRs.** Demo videos that your agent can request and
  live previews your team can open in the browser.

## For AI agents

- Site overview: [/llms.txt](https://limrun.com/llms.txt)
- MCP server: https://mcp.limrun.com/mcp (server card at
  [/.well-known/mcp/server-card.json](https://limrun.com/.well-known/mcp/server-card.json))
- Agent skills: [/.well-known/agent-skills/index.json](https://limrun.com/.well-known/agent-skills/index.json)
- API spec: [/openapi.json](https://limrun.com/openapi.json), catalog:
  [/.well-known/api-catalog](https://limrun.com/.well-known/api-catalog)
- Authentication guide: [/auth.md](https://limrun.com/auth.md)
- CLI: `npm install -g lim` or `brew install limrun-inc/tap/lim`

## Links

- [Documentation](https://docs.limrun.com/docs)
- [Sign up or log in](https://console.limrun.com)
- [Book a demo](https://cal.com/team/limrun/mobile-app-dev-in-cloud)

## Blog

Read [the Limrun blog](https://limrun.com/blog/) for guides to building, testing, and sharing mobile apps.