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Testa MCP Server

local only

Testa runs on your own machine — the client starts it, so there is no endpoint to ping. 40 installs a week from npm. Last commit 9 Oct 2026.

Drive the iOS Simulator from an agent: read the screen, tap/type/swipe, replay flows in CI.

Installs per day peak 134 · avg 9 · +90% w/w
a month agotoday
40
Installs / week
npm · @valewnrt/testa-mcp
3
Stars
0 open issues
9 Oct 2026
Last commit
1 release in 90 days
MIT
License
Swift

What the code does

We read the source, 2 d ago · rules 995398eba69f

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

  const child = spawn(bin, ['mcp', ...process.argv.slice(2)], { stdio: 'inherit' });
In the project's build, not in the package

Found in continuous integration, deployment or infrastructure files, or in a neighbouring package of the same monorepo. None of this is installed when you add the server: it describes how the project is built and released. We list it because a leaked key in a build pipeline is still a real problem, but it is not something this server does on your machine.

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Three servers free · no card

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

run in your terminal
claude mcp add testa -- npx -y @valewnrt/testa-mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "testa": {
      "command": "npx",
      "args": [
        "-y",
        "@valewnrt/testa-mcp"
      ]
    }
  }
}
~/.codex/config.toml
[mcp_servers.testa]
command = "npx"
args = ["-y", "@valewnrt/testa-mcp"]
.cursor/mcp.json
{
  "mcpServers": {
    "testa": {
      "command": "npx",
      "args": [
        "-y",
        "@valewnrt/testa-mcp"
      ]
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "testa": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@valewnrt/testa-mcp"
      ]
    }
  }
}

Optional settings from the registry entry, left out of the block above: TESTA_MCP_FULL (Set to 1 to expose all 40 tools instead of the 13-tool token-lean default), TESTA_UDID (Target a specific simulator UDID instead of the booted one).

Alternatives to Testa

same job, measured the same way
NoMac Simulator
by nomac

Cloud iPhone Simulators for AI agents: build the Xcode project, read the screen, tap by label, test.

answering
macbox
by opslane

A real Mac for your agent: build, test, run, and tap through iOS apps on the simulator.

46 installs/wk local only
Smolanalytics
by arjun0606

End-to-end tests from one sentence: an agent drives a real browser, and passing runs replay free.

68 installs/wk local only
adb-mcp: Android emulator and device control over adb
by iksnerd

Drive an Android emulator or device over adb: screenshot, inspect UI, tap, type, build and test.

local only
Reelier
by seldonframe

Snapshot tests and CI for agent workflows: record a run, replay it at 0 tokens, diff for drift.

120 installs/wk local only
Tapp
by aarwitz

Test iOS, Android, and web apps with agent exploration, replayable flows, and CI gates.

3 902 installs/wk local only
Optics
by optics-framework

Drive Android, iOS, smart TV and web apps from an agent; save the steps as CSV/YAML test suites.

local only
Octoperf
by octoperf

Drive OctoPerf load testing from any AI agent: import, edit, validate, run scenarios, read metrics.

answering

Testa — questions

Answers built from our own checks of this server.

Why is there no uptime for Testa?
Testa runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package @valewnrt/testa-mcp was installed 40 times last week.
How do I connect Testa?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It runs locally, so the command pulls @valewnrt/testa-mcp straight from npm; nothing to host, nothing to sign up for.
How many people use Testa?
The npm package @valewnrt/testa-mcp was installed 40 times in the last week. Week over week that is +90%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is Testa open source?
Yes — it is published under the MIT licence, written in Swift and 3 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.