Testa MCP Server

Drive the iOS Simulator like a human - from an AI agent. Real HID touches (every gesture), screen reading via the accessibility tree or on-device OCR, token-efficient, fast, and zero third-party dependencies. It runs locally over stdio via the published package.

People connecting browser automation tools to Claude, Cursor, VS Code, or another MCP client. The project is written in Swift.

VERIFIED ACTIVE

LAST COMMIT 2026-07-30 · ★ 2 · #118 OF 196 MAINTAINED BROWSER AUTOMATION · VERIFIED 2026-08-25

MIT · Swift · how we verify → /methodology

01 · Install Testa

before you install - you'll need

The README does not document required environment variables for a basic install.

Claude Code

claude mcp add valewnrt-testa -- npx -y @valewnrt/testa-mcp

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "valewnrt-testa": {
      "command": "npx",
      "args": [
        "-y",
        "@valewnrt/testa-mcp"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license MIT - declared in the repository

npm package @valewnrt/testa-mcp - published under the repo owner's npm scope (@valewnrt)

registry namespace io.github.valewnrt is GitHub-verified and matches the repo owner

03 · What Testa can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Limitations (from the README)

- Icon-only controls with no text and no accessibility label are ambiguous to any automation - use coordinates, or add an accessibilityLabel. - HID typing depends on the host keyboard layout. Keystrokes are HID usages, so a non-US host layout can produce the wrong character for some symbols. Text that isn't HID-typeable at all (umlauts, emoji, π) is detected and written via pasteboard + Cmd-V automatically - and setv

Latest releases

v0.2.1 · 2026-07-30

Bug-fix release from dogfooding 0.2.0 against real apps. The headline is a · silent-failure class: a warm daemon could go deaf - every tap replied · success while nothing reached the screen - because a failed HID send…

v0.2.0 · 2026-07-29

The "runs without an agent" release. Testa still drives a simulator for an LLM, · but a run can now be recorded once and replayed forever with zero tokens - · plus a large environment-control surface, an accessibility…

v0.1.3 · 2026-05-22

Adds testa logs (recent app console output) and testa crashes (newest crash report) - both independent, public-simctl-API implementations, so an agent can see why a step failed. No third-party tooling.

04 · Who maintains Testa

testa is maintained by valewnrt. It's the only MCP server we track from this author; the repo dates to May 2026.

05 · Facts

repository: github.com/valewnrt/testa
website: https://github.com/valewnrt/testa
category: browser automation - ranked #118 of 196 actively-maintained browser automation servers as of 2026-08-25.
release cadence: 2 releases in the last 90 days (latest 2026-07-30)
registry: io.github.valewnrt/testa (active, first published 2026-07-30 · 2 versions)
packages: npm:@valewnrt/testa-mcp

06 · Testa FAQ

What is Testa?

Is Testa still maintained?

Yes - as of 2026-08-25, its last commit was 2026-07-30 and it shipped 2 releases in the last 90 days. We re-verify nightly.

How do I install Testa?

Run `npx -y @valewnrt/testa-mcp`. The README does not document required environment variables for a basic install. You can also paste the ready-made client config above.

Does Testa run locally?

Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Testa

Alternatives to Testa

Maintained browser automation servers if Testa isn't the fit.

Pairs well with

Servers that cover what Testa doesn't - only shown when the pairing reason fits the companion.

More browser automation MCP servers · Vibe MCP - Real Chrome, Remotely · AndroJack MCP · Devloop · Nestegg Calculators · Jshookmcp