# offstage cloud > macOS sandboxes for AI agents. A sandbox is a macOS user account on an Apple silicon Mac Studio (M5 Max), created and driven over an HTTP API: run commands, read and write files, run builds and tests with Xcode, then close it. Interactive desktop access is currently paused for public accounts. $1.10 an hour, billed per second with no minimum. offstage cloud is a product of Exla. It is not affiliated with, sponsored by or endorsed by Apple Inc. ## Start - [Create an account](https://console.offstage.cloud/sign-up): sign up, verify your email, create an API key in the console. New personal accounts get $5 in free credit, with no credit card needed. - [Docs](https://offstage.cloud/docs): quickstart, sandboxes, tasks, what's on the Mac, errors, pricing and limits. - [Agent setup](https://api.offstage.cloud/SKILL.md): the skill a coding agent reads to set itself up, run its first command on a Mac and report what it verified. ## API - [API guide for language models](https://api.offstage.cloud/llms.txt): sandboxes, tasks, files, screenshots, errors and billing, with examples. - [OpenAPI spec](https://api.offstage.cloud/openapi.json): every operation and schema. - [Price sheet](https://api.offstage.cloud/v1/pricing): JSON, no key needed. ## What it's for - Building and testing iOS and macOS apps with xcodebuild and simctl. - Headless command-line builds and tests are available. Interactive GUI access, desktop screenshots and runAgent are paused for public accounts (gui-paused). - CI tasks: clone a repo, run a command, collect artifacts. ## Pricing - $1.10 an hour for each sandbox or task, billed per second with no minimum. - New personal accounts get $5 in free credit. No credit card is needed to use it. Paid top-ups are not open yet; contact hello@offstage.cloud for more credit. - Per team: 4 open sandboxes and, independently, 4 running tasks or CI jobs. Up to 16 more tasks can queue. - Up to 8 sandboxes share an 18-core M5 Max Mac Studio with 36 GB memory, without fixed CPU or memory allocations. Runtime depends on workload and other running work. - Comparison prices assume the same runtime, not equal build performance; no matched GitHub build benchmark has been published. - Install the current SDK: `npm install https://api.offstage.cloud/sdk/offstage-cloud-0.3.1.tgz`. The npm registry release is older. ## Company - [Talk to an engineer](https://offstage.cloud/join?talk=1) - [Terms of Service](https://offstage.cloud/terms) - [Privacy](https://offstage.cloud/privacy) - Email: hello@offstage.cloud