MCP.Market

JevSim MCP server

by huaaudio·io.github.huaaudio/jevsim·v0.1.0
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Run verified iOS and Android UI workflows in one agent tool call with Jev.

B78/100grade B
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Safety scan
B78/100

full report

Adoption
New

0 stars41 downloads/wk

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If you have run it, two minutes of your experience saves the next person an afternoon.

JevSim tools (3, 1 write)

write = sends, deletes, buys or posts

Read from the package source without running it. The installed server may list more.

  • jevsim_inspect

    Read accessibility state for an explicit booted iOS simulator or connected Android device. Use simulatorId for iOS; platform android and deviceId for Android. Android first use starts an Appium session. Returned UI text may be private.

  • jevsim_run_stepswrite action

    Execute up to 10 caller-planned tap/type/scroll/wait/assert steps within 60 seconds. Every action needs a deterministic expected outcome. Reserve the simulator or Android device for this call; do not use another UI tool concurrently. Returns partial progress and stops on ambiguity or failure. Never automatically replay uncertain actions.

  • jevsim_status

    Check backend connection, supported capabilities, iOS simulators or Android devices, and credential presence. Defaults to iOS. No secrets returned.

Public scan report

scanner v0.1.10 · 2026-10-30 · same rubric, same numbers if you re-run it

no findings
  • Code scan12 source files scanned25/25
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • –Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitystatic API keys via environment variables6/15
  • Maintenancelast push 40 days ago12/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10
Overall 78/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How JevSim compares

Against every graded AI and agents MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
78/100
higher than 57% of 4,460 AI and agents servers
Tools
3
the typical AI and agents server has 6
Tools that change things
33%
typical: 0%. Fewer write tools means less an agent can break
Downloads a week
41
more than 33% of 1,538 AI and agents servers with a package

What its tools let an agent do: 2 read · 1 change

Install JevSim in Claude Code, Cursor or VS Code

Runs npx -y @huaaudio/jevsim on your machine. Read the scan report first; the gateway never runs local packages.

claude mcp add jevsim -- npx -y @huaaudio/jevsim
Add to Cursor

What the publisher says

From the JevSim repository's README, as published. We do not edit it. Read it on GitHub

JevSim

English | 简体中文

Complete a mobile UI sequence in one agent tool call.

JevSim is a local MCP server for agents working with iOS and Android apps. Give it a short plan—navigate, enter text, save, verify—and it executes the steps without returning to your main reasoning loop after every interaction. Jev, a text-based selection model, matches descriptions to current accessibility controls. XcodeBuildMCP (iOS) or Appium/UIAutomator2 (Android) performs the actions and checks the results.

If you are a human, give your agent this repository URL and ask: “Install JevSim for my iOS/Android project, connect it to your MCP tools, and verify the setup.” The instructions below are for that agent.

Speed comparison

We reran the same ten-tap iOS Settings tour with the same checks after every action: open five sections and return from each. Pure agent means the main agent reads each screen and chooses the next control through XcodeBuildMCP. Agent + JevSim means it delegates the full route in one jevsimrunsteps call, with Jev selecting all ten targets.

Measured September 21, 2026: GPT-6-astra (high reasoning) in Codex, Jev 1.13.0, XcodeBuildMCP 2.7.0, iPhone 17e / iOS 26.5 Simulator. Times include observations, target decisions, actions, checks, and intermediate agent/tool round trips; setup and initial route planning are excluded. This is one navigation benchmark with three runs per approach, not a general debugging or Android speed guarantee. Run details and reproduction.

Agent installation

  1. Inspect the environment. Use Node.js 24 and npm. Choose the platform from the user's project; install only that backend. Reuse existing tools and credentials where available.
  2. Use the npm package. Configure the MCP client to run npx -y --package=@huaaudio/jevsim@0.1.0 jevsim. This downloads the compiled package; no clone or build is needed. Use an absolute path to Node.js 24’s npx if the client has a restricted PATH. Source installation remains available for development.
  3. Prepare the backend. For iOS, use macOS, Xcode, and a booted simulator; JevSim starts its own pinned XcodeBuildMCP process. For Android, prepare ADB and a device/emulator, then start local Appium with UIAutomator2 using the Android instructions. Build, install, and launch the user's app with your existing tools.
  4. Configure Jev. Supply TYPESAFEAPIKEY through your client's secret/environment configuration. The npm launcher does not automatically read .env; use the env-file launch option if needed. Preserve an existing .env; use .env.example only as a template. Never print or commit the key. Exact-identifier workflows also work without a key.
  5. Register and verify the MCP server. Follow the agent installation runbook for absolute launch paths, client configuration, and readiness checks. Preserve other MCP servers. Installation is complete when you can discover all three tools, connect to the chosen backend, and inspect the intended device. Report any missing prerequisite precisely.

Delegate a workflow

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

JevSim: common questions

Is JevSim MCP server safe?
Mostly: it is graded B (78/100). Read the JevSim safety report
How do I install JevSim?
It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
Does JevSim need an API key?
Yes. The registry entry asks for TYPESAFE_API_KEY.
Is JevSim maintained?
The last commit was 44 days ago (2026-09-21). The latest release is v0.1.0.
What can I use instead of JevSim?
Servers from other publishers that do the same job: agent-device MCP server, Ausca MCP server and AKShare MCP server.
How does JevSim compare with other AI and agents MCP servers?
safety score 78/100 (higher than 57% of 4,460 AI and agents servers); tools 3 (the typical AI and agents server has 6); tools that change things 33% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.

Alternatives to JevSim

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