Give your AI agent a phone it can use.
A phone agent is an AI agent that operates apps on a phone the way you do: it reads the screen, taps, types and swipes. Mobilebox gives your agent the phone; Claude Code, Cursor, Codex or your own loop does the thinking.
Android is self-serve. Looking for an agent that makes phone calls? That's a voice platform.
- 1
Get a key
Sign up with GitHub and create an API key in the dashboard. New accounts get $2 of credit.
- 2
Add the MCP server
Point your client at
https://mobilebox.dev/mcpwith the key as a bearer header. - 3
Give it a task
Ask for one bounded task and a check at the end, such as "open the app and confirm the welcome screen".
Claude Code, in one command
Other clients take the same URL and header.
claude mcp add --transport http mobilebox https://mobilebox.dev/mcp \
--header "Authorization: Bearer $MOBILESANDBOX_API_KEY"Questions
What a phone agent is, and what it isn't.
What is a phone agent?
An AI agent that uses a phone through its screen: it reads what's shown, decides, then taps, types or swipes, and checks the result. Some people call it a phone use agent, like computer use for phones.
Is this a voice or calling agent?
No. Mobilebox phones don't place calls or receive SMS. For an agent that talks on the phone, use a voice-agent platform.
Which agents work with it?
Any MCP client, including Claude Code, Cursor and Codex, through the hosted MCP server with 12 tools. Your own loop can use the REST API with the same key.
How does the agent read the screen?
As numbered elements with their text and position, so it taps by number instead of guessing pixels. A screenshot is there when the pixels matter. See screenshot or accessibility tree.
Can it use the apps I use every day?
With your own account and within each app's terms, yes for many apps. Apps with strict integrity checks may not run on a cloud phone; real devices are set up on an onboarding call. See app automation.
Does it work on iPhone?
Yes. iPhone and iPad are set up on an onboarding call, then your agent uses the same calls. See iPhone and iPad, or start with a mobile sandbox on Android today.
Read more
Give your coding agent an Android sandbox over MCP
Add the remote MCP server to Claude Code or Cursor, see every phone tool, run a bounded first task and know what is proven.
A successful tap is not a successful task
Design Android agent checks around outcomes, screen evidence, failure traces, and safe cleanup.