# Expo Agent Bridge (npm · expo-mcp-bridge)

Let AI agents see, tap, type, scroll, screenshot and debug your Expo app on a real phone.

- Trust score: 66/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-10-23

## Components

- npm · `expo-mcp-bridge`: 66/100 (this document), [markdown](https://verifymcp.io/servers/rudrasamadhiya-expo-mcp-bridge/expo-mcp-bridge.md), [page](https://verifymcp.io/servers/rudrasamadhiya-expo-mcp-bridge/expo-mcp-bridge)

## Channel facts

- Registry: `npm`
- Package: `expo-mcp-bridge`
- Version: `0.3.2`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-10-23.

- **Supply Chain Security**: 98/100
  - No malware found by supply-chain analysis.
  - A known CVE affects braces, but no fixed version has been published, so there is nothing to upgrade to.
  - No install/post-install scripts declared.
  - 77 of 273 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 45/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 1 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 66/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 1303 tokens (~76/item across 17 items; 17 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 0/100
  - Stability not yet verified: not enough scan history yet (needs a 30-day window).
- **Tool Coverage**: 91/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 72% of tool parameters carry a description.
- **Tool Safety**: 75/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - 0 of 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "app_eval" implies "eval" and declares no destructiveHint at all, which the MCP spec reads as destructive by default.
  - An AI judge read all 17 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

**Unverified: 1 category.** A category scored 0 because we could not verify it: a data source with nothing on this package, evidence we could not reach, or a check we could not run. We only credit what we can confirm.

## Install

### How do I install the Expo Agent Bridge MCP server?

Expo Agent Bridge runs locally as an npm package, launched with npx -y expo-mcp-bridge. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add rudrasamadhiya-expo-mcp-bridge -- npx -y expo-mcp-bridge
```

### Cursor

```json
{
  "mcpServers": {
    "rudrasamadhiya-expo-mcp-bridge": {
      "command": "npx",
      "args": [
        "-y",
        "expo-mcp-bridge"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "rudrasamadhiya-expo-mcp-bridge": {
      "command": "npx",
      "args": [
        "-y",
        "expo-mcp-bridge"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add rudrasamadhiya-expo-mcp-bridge -- npx -y expo-mcp-bridge
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "rudrasamadhiya-expo-mcp-bridge": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "expo-mcp-bridge"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add rudrasamadhiya-expo-mcp-bridge --command npx --arg -y --arg expo-mcp-bridge
```

### Hermes

```yaml
mcp_servers:
  rudrasamadhiya-expo-mcp-bridge:
    command: "npx"
    args: ["-y", "expo-mcp-bridge"]
```

### Netclaw

```json
{
  "McpServers": {
    "rudrasamadhiya-expo-mcp-bridge": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "expo-mcp-bridge"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add rudrasamadhiya-expo-mcp-bridge -t stdio -c npx -a -y expo-mcp-bridge
```

### Other

```json
{
  "mcpServers": {
    "rudrasamadhiya-expo-mcp-bridge": {
      "command": "npx",
      "args": [
        "-y",
        "expo-mcp-bridge"
      ]
    }
  }
}
```

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-10-22 (score 66, +15)

- [security improvement] Malware scan: unverified → pass

### 2026-10-21 (score 51)

First indexed and scored.

## MCP tools (17)

### `app_status` (~23 tokens)

Check whether the mobile app is connected and show device info. Call first.

### `app_snapshot` (~51 tokens)

Compact text outline of the current screen (buttons, inputs, text, lists) with refs like [e3] to act on. Prefer this over screenshots.

Input parameters:

- `maxLines` (integer): default 400

### `app_layout` (~52 tokens)

Positions (dp, window coordinates) and font sizes of elements on the current screen. For layout checks and visual work; app_snapshot is cheaper for acting.

Input parameters:

- `limit` (integer): max elements, default 250

### `app_screenshot` (~140 tokens)

JPEG screenshot of the app. Use only for visual/layout questions; app_snapshot is cheaper for finding elements. With saveTo, writes the file and returns only its path (no image tokens).

Input parameters:

- `area` (string): auto (default) = visible screen; window = whole window incl. overlays
- `fullScroll` (boolean): capture the whole content of the main scroll view as one tall image
- `maxWidth` (integer): pixels, default 400
- `quality` (number): 0-1, default 0.6
- `saveTo` (string): file path (.jpg) to save instead of returning the image

### `app_batch` (~100 tokens)

Run several actions in one call (fastest way to fill forms or walk a flow). Returns the screen once at the end. Steps: {action:"tap"|"type"|"scroll"|"toggle"|"navigate"|"wait"|"dismiss_keyboard", ...that tool's args}.

Input parameters:

- `full` (boolean): full screen instead of a diff
- `snapshot` (boolean): report the screen afterwards (default true)
- `steps` (array, required)

### `app_tap` (~114 tokens)

Press a button/pressable element. Returns what changed on screen plus any new errors.

Input parameters:

- `full` (boolean): full screen instead of a diff
- `long` (boolean): long press
- `ref` (string): ref from the last snapshot, e.g. "e4"
- `snapshot` (boolean): report the screen afterwards (default true)
- `testID` (string): testID prop of the element
- `text` (string): visible label/placeholder (exact match first, then contains)

### `app_type` (~137 tokens)

Set text in an input (replaces by default). Target by ref, testID, or placeholder text.

Input parameters:

- `append` (boolean)
- `full` (boolean): full screen instead of a diff
- `ref` (string): ref from the last snapshot, e.g. "e4"
- `snapshot` (boolean): report the screen afterwards (default true)
- `submit` (boolean): fire onSubmitEditing (like pressing enter)
- `testID` (string): testID prop of the element
- `text` (string): visible label/placeholder (exact match first, then contains)
- `value` (string, required)

### `app_scroll` (~123 tokens)

Scroll a list/ScrollView (first one on screen if no target).

Input parameters:

- `amount` (number): pixels, default ~70% of screen
- `direction` (string)
- `full` (boolean): full screen instead of a diff
- `ref` (string): ref from the last snapshot, e.g. "e4"
- `snapshot` (boolean): report the screen afterwards (default true)
- `testID` (string): testID prop of the element
- `text` (string): visible label/placeholder (exact match first, then contains)

### `app_toggle` (~103 tokens)

Flip a Switch (or set it with value).

Input parameters:

- `full` (boolean): full screen instead of a diff
- `ref` (string): ref from the last snapshot, e.g. "e4"
- `snapshot` (boolean): report the screen afterwards (default true)
- `testID` (string): testID prop of the element
- `text` (string): visible label/placeholder (exact match first, then contains)
- `value` (boolean)

### `app_navigate` (~80 tokens)

Open a route (expo-router path like "/settings") or a full deep link.

Input parameters:

- `full` (boolean): full screen instead of a diff
- `path` (string, required)
- `replace` (boolean): replace the current screen instead of pushing (keeps the stack shallow)
- `snapshot` (boolean): report the screen afterwards (default true)

### `app_wait` (~69 tokens)

Wait until text or a testID appears (or disappears with gone=true). Cheaper than polling snapshots.

Input parameters:

- `gone` (boolean)
- `testID` (string)
- `text` (string)
- `timeout` (integer): ms, default 5000, max 30000

### `app_logs` (~80 tokens)

Console logs and JS errors captured in the app.

Input parameters:

- `clear` (boolean)
- `level` (string): "error" = errors only, "warn" = warnings and errors
- `limit` (integer): default 50
- `search` (string)
- `since` (integer): only entries after this cursor (returned as "cursor")

### `app_network` (~77 tokens)

HTTP requests made by the app (fetch/XHR) with status, timing and truncated bodies.

Input parameters:

- `bodies` (boolean): include request/response bodies (default false)
- `failedOnly` (boolean)
- `limit` (integer): default 30
- `search` (string): substring of URL
- `since` (integer)

### `app_eval` (~52 tokens)

Run JavaScript inside the app (dev only) and return the JSON result. Expression or statements with return. `bridge` and `RN` (react-native) are in scope.

Input parameters:

- `code` (string, required)

### `app_reload` (~19 tokens)

Reload the JS bundle (like pressing r in Metro).

### `app_dismiss_keyboard` (~16 tokens)

Hide the on-screen keyboard.

### `device_key` (~67 tokens)

Press a hardware/system key on an Android device via adb (USB or Wi-Fi debugging): volume_up, volume_down, mute, back, home, app_switch, enter, tab, delete, power, menu, escape.

Input parameters:

- `key` (string, required)
- `repeat` (integer)

## Diagnostics

Captured diagnostic sections: Provenance, Vulnerabilities, Dependencies. The full working is on the page: https://verifymcp.io/servers/rudrasamadhiya-expo-mcp-bridge/expo-mcp-bridge#diagnostics

## Score history

- 2026-10-23: 66
- 2026-10-22: 66
- 2026-10-21: 51

## Common questions

### What is the Expo Agent Bridge MCP server?

Expo Agent Bridge is an MCP server listed in the public MCP registry as io.github.Rudrasamadhiya/expo-mcp-bridge. Let AI agents see, tap, type, scroll, screenshot and debug your Expo app on a real phone. This page covers its npm package (expo-mcp-bridge).

### Is the Expo Agent Bridge MCP server safe to use?

Expo Agent Bridge scores 66 out of 100 on VerifyMCP. We recorded 1 known advisory against it as of 23 October 2026. It declares no install or post-install scripts. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the Expo Agent Bridge MCP server expose?

Expo Agent Bridge exposes 17 tools: app_status, app_snapshot, app_layout, app_screenshot, app_batch, and 12 more. Their descriptions and schemas cost roughly 1,303 tokens of context every time the server is loaded.

### Is the Expo Agent Bridge MCP server still maintained?

Expo Agent Bridge is still listed as active in the MCP registry. We last reached this channel on 23 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

### What licence is the Expo Agent Bridge MCP server under?

Expo Agent Bridge declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

## Links

- npm package: https://www.npmjs.com/package/expo-mcp-bridge
- Socket report: https://socket.dev/npm/package/expo-mcp-bridge
- Repository: https://github.com/Rudrasamadhiya/expo-mcp-bridge
- Website: https://rudrasamadhiya.github.io/expo-agent-kit/docs/bridge/
- Changelog RSS feed: https://verifymcp.io/servers/rudrasamadhiya-expo-mcp-bridge/expo-mcp-bridge.xml
- Changelog JSON feed: https://verifymcp.io/servers/rudrasamadhiya-expo-mcp-bridge/expo-mcp-bridge.json
- HTML version of this page: https://verifymcp.io/servers/rudrasamadhiya-expo-mcp-bridge/expo-mcp-bridge