thumbs

com.usethumbsPublished by usethumbs.comOfficial publisherv0.1.0Updated Oct 29, 2026

Give an AI agent an iPhone to see, tap and type on over MCP. Free early access (Simulator).

VerifiedStreamable HTTPWeb executableBrowser AutomationDeveloper Tools

Overview

AI-generated overview

Remote MCP server that gives an AI agent an iPhone Simulator to see, tap, type and swipe on, so it can check iOS behaviour of web apps.

What you can do
  • See the phone: get a screenshot plus a numbered list of tappable elements with labels and positions.
  • Interact: tap, type, swipe, scroll, press home and answer system alerts.
  • Navigate: open apps and links, for example loading your pages in Safari on the Simulator.
  • Walk through screens step by step, such as a multi-screen onboarding flow.
When to use it
Useful when you want an agent to check how a web app behaves on iOS, for example a keyboard covering a form, without a Mac, Xcode or a cable. Early access is limited to the iOS Simulator with Safari and Apple's built-in apps.
Requirements
A remote Streamable HTTP endpoint with OAuth 2.1 sign-in through Google; no local install. Access is allowlisted, so the account must be let in from the waitlist. Sign-in is finished in a browser on the same computer.
Before you install
The Simulator is shared between testers in turns of up to 30 minutes, so anything left on it may be seen by the provider and the next tester and may be deleted; do not sign in to personal accounts. No banking apps, Apple Pay or Face ID. The agent can tap, type and open links on the device, and you are responsible for what it does. Service may be slow, unavailable or change without notice.

Installation

In SourceWeft

  1. Open thumbs in the dashboard and add it to a workspace.
  2. Connect the required credentials. They are stored privately and never shown on public pages.
  3. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/com.usethumbs%2Fthumbs/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config. The client completes OAuth sign-in on first connect.

{
  "mcpServers": {
    "thumbs": {
      "type": "http",
      "url": "https://mcp.usethumbs.com/mcp"
    }
  }
}

README

thumbs: an iPhone for your AI agent (MCP)

thumbs gives Claude Code, or any MCP client, an iPhone to see, tap and type on, through one remote MCP server URL with Google sign-in. Nothing to install on your side: no Mac, no Xcode, no cable.

https://mcp.usethumbs.com/mcp

Status: early access, by waitlist. Free early access runs on the iOS Simulator (Safari and Apple's built-in apps), shared between testers and let in one at a time. A real iPhone of your own is planned; it is not available yet and has no date or price.

Join the waitlist →

This repository holds the documentation only. The server's source code is not published here. Docs are MIT licensed (see LICENSE).

What an agent can do

An agent gets a screenshot of the phone and a numbered list of everything it can tap, with labels and positions, so it can say "tap 4" instead of guessing pixels. It can tap, type, swipe, scroll, open apps and links, press the home button and answer system alerts.

What you can use it for

  • Check your web app on iOS (works in early access): open your pages in Safari on an iPhone Simulator and see what a phone shows, such as the keyboard covering a form. Guide: How to test your web app on an iPhone with an AI agent.
  • Test your own app, map other apps, use apps with no API (these need your own iPhone, which is planned and not available yet).

More: How to give an AI agent an iPhone with MCP.

Connect

Only accounts that have been let in from the waitlist can use a phone. Join the waitlist if you aren't in yet.

ClientHow
Claude Codeclaude mcp add --transport http thumbs https://mcp.usethumbs.com/mcp, then run /mcp and sign in with Google. Finish the sign-in in a browser on the same computer while Claude Code waits.
Claude appSettings › Connectors › Add custom connector, and paste the URL above.
CursorInstall in Cursor, or add the generic config below to ~/.cursor/mcp.json.
VS CodeInstall in VS Code, or add { "servers": { "thumbs": { "type": "http", "url": "https://mcp.usethumbs.com/mcp" } } } to .vscode/mcp.json.
Any other MCP clientAny client that supports remote servers over Streamable HTTP with OAuth 2.1 sign-in connects the same way.

Generic config for clients that take a URL:

json
{ "mcpServers": { "thumbs": { "url": "https://mcp.usethumbs.com/mcp" } } }

Server details

TransportStreamable HTTP
AuthOAuth 2.1 with Google sign-in (dynamic client registration, PKCE S256)
Endpointhttps://mcp.usethumbs.com/mcp
AccessAllowlist: accounts let in from the waitlist
Registry namecom.usethumbs/thumbs (see server.json)

An unauthenticated request gets 401 with a WWW-Authenticate header pointing to the OAuth metadata. That is expected.

Measured

On a real iPhone 17 Pro, 23 October 2026, run by the maker (not on the Simulator that early access uses today): a screenshot in about 63 ms; a tap in 0.4 to 0.8 s depending on the app; 296 commands in 20 minutes with no failures; a language app's 19-screen onboarding walked to its paywall in 3.2 minutes.

Limits

  • Early access is the iOS Simulator: Safari and Apple's built-in apps, not App Store apps. It is not a real device.
  • The Simulator is shared between testers, in turns of up to 30 minutes. Don't sign in to personal accounts on it; anything left on it may be seen by us and the next tester, and may be deleted.
  • No banking apps, no Apple Pay, nothing behind Face ID.
  • It may be slow, unavailable or change at any time. Early access is provided as it is, without warranty.

Usage policy

Use thumbs for your own apps, your own accounts and your own research. Don't use it to spam, make fake accounts, get around an app's rules or security, harm others, or anything illegal. Don't try to break, overload or reverse-engineer the service. You are responsible for what your agent does and for having the right to test the apps you point it at. Full text: Terms · Privacy.

Links

License

The documentation in this repository is released under the MIT License. "thumbs" and the thumbs logo are not covered by it.

Source: README.md at commit 4c3205b

Tools

0
This server asks you to sign in, so SourceWeft could not read its tools without an account and has not indexed them. What a connected account sees can depend on that account and its permissions.

Version history

1
  1. v0.1.0LatestOct 29, 2026

Score

75% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listed15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts

    Declare a license in the repository or the registry entry.