# io.github.CrossPad/crosspad-mcp (npm · crosspad-mcp-server)

Development workflow server for CrossPad — build, test, run, screenshot, and navigate code

- Trust score: 67/100 (medium)
- Change this week: +21
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- npm · `crosspad-mcp-server`: 67/100 (this document), [markdown](https://verifymcp.io/servers/crosspad-crosspad-mcp/crosspad-mcp-server.md), [page](https://verifymcp.io/servers/crosspad-crosspad-mcp/crosspad-mcp-server)

## Channel facts

- Registry: `npm`
- Package: `crosspad-mcp-server`
- Version: `4.0.1`
- 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 2026-08-03.

- **Supply Chain Security**: 86/100
  - No malware found by supply-chain analysis.
  - Only part of the dependency tree could be resolved (94 of 98), so this covers what we could see, not the whole tree.
  - No install/post-install scripts declared.
  - Only part of the dependency tree could be resolved (94 of 98), so this covers what we could see, not the whole tree.
- **Provenance & Transparency**: 32/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - License check failed: no license is declared.
  - Actively maintained (last published 32 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 77/100
  - AI-judged instruction clarity (excellent).
  - Tool/resource definitions use about 1648 tokens (~96/item across 17 items; 17 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 27/100
  - Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add crosspad-crosspad-mcp -- npx -y crosspad-mcp-server
```

### Codex

```bash
codex mcp add crosspad-crosspad-mcp -- npx -y crosspad-mcp-server
```

### opencode

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

### OpenClaw

```bash
openclaw mcp add crosspad-crosspad-mcp --command npx --arg -y --arg crosspad-mcp-server
```

### Hermes

```yaml
mcp_servers:
  crosspad-crosspad-mcp:
    command: "npx"
    args: ["-y", "crosspad-mcp-server"]
```

### Other

```json
{
  "mcpServers": {
    "crosspad-crosspad-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "crosspad-mcp-server"
      ]
    }
  }
}
```

## 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.

### 2026-08-03 (score 67, +1)

No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-08-02 (score 66, +45)

- [security regression] Provenance: unverified → fail
- [security improvement] Install scripts: unverified → pass
- [security improvement] Known CVEs: unverified → partial
- [security improvement] Malware scan: unverified → pass
- [functional regression] License: unverified → fail
- [functional regression] Tool coverage: 100 → unverified
- [functional improvement] Schema quality: unverified → excellent
- [functional improvement] Maintenance: unverified → pass
- [functional improvement] MCP protocol: unverified → pass
- [functional improvement] Stability: unverified → 0.23
- [functional improvement] Dependency health: unverified → partial

### 2026-07-31 (score 21, −3)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-30 (score 24, −22)

- [functional regression] Tool coverage: 100 → unverified
- [functional] First check of Schema quality: unverified

### 2026-07-27 (score 46)

First indexed and scored.

## MCP tools (17)

### `crosspad_build` (~64 tokens)

Build crosspad-pc simulator (incremental, clean, or reconfigure)

Input parameters:

- `mode` (string): incremental: just cmake --build. clean: delete build dir + full rebuild. reconfigure: cmake configure + build (use after adding new source files)

### `crosspad_run` (~28 tokens)

Launch the crosspad-pc simulator (bin/CrossPad.exe). Returns immediately with PID.

### `crosspad_build_check` (~51 tokens)

Quick health check: is the build up to date? Detects stale exe, new source files needing reconfigure, submodule drift, dirty working trees. Use before build to know what mode to use.

### `crosspad_log` (~87 tokens)

Launch CrossPad.exe, capture stdout/stderr for a few seconds, then kill it. Great for checking init sequence, crash messages, or runtime errors without leaving the process running.

Input parameters:

- `max_lines` (number): Max lines of output to return (default: 200)
- `timeout_seconds` (number): How long to let the process run before killing it (default: 5)

### `crosspad_idf_build` (~81 tokens)

Build the crosspad-idf ESP32-S3 firmware using idf.py. Use fullclean after adding new app directories or CMakeLists.txt changes.

Input parameters:

- `mode` (string): build: incremental idf.py build. fullclean: idf.py fullclean + build (required after new app dirs). clean: delete build/ + build.

### `crosspad_test` (~74 tokens)

Build and run the Catch2 test suite. If no tests/ dir exists, tells you to scaffold. Supports filtering by test name.

Input parameters:

- `filter` (string): Catch2 test name filter (e.g. '[core]' or 'PadManager')
- `list_only` (boolean): Just list available tests without running them

### `crosspad_test_scaffold` (~46 tokens)

Generate test infrastructure: tests/CMakeLists.txt (Catch2 v3), sample test file, and CMake patch instructions. Returns file contents — does NOT write to disk.

### `crosspad_repos_status` (~60 tokens)

Show git status across all CrossPad repos (crosspad-core, crosspad-gui, crosspad-pc, ESP32-S3, 2playerCrosspad). Detects dev-mode vs submodule-mode and checks submodule pin sync.

### `crosspad_diff_core` (~66 tokens)

Show what changed in crosspad-core and/or crosspad-gui relative to the pinned submodule commit. Shows commits ahead/behind, changed files, uncommitted changes. Essential for dev-mode workflows.

Input parameters:

- `submodule` (string): Which submodule(s) to diff

### `crosspad_search_symbols` (~108 tokens)

Search for classes, functions, macros, enums across all CrossPad repos. Faster than manual grep — uses git grep under the hood.

Input parameters:

- `kind` (string): Filter by symbol kind
- `max_results` (number): Max results to return
- `query` (string, required): Symbol name or substring to search for
- `repos` (array): Repo names to search: "crosspad-core", "crosspad-pc", "ESP32-S3", etc. or ["all"]

### `crosspad_scaffold_app` (~108 tokens)

Generate boilerplate for a new CrossPad app (cpp, hpp, CMakeLists.txt, optional pad logic). Returns file contents for Claude to write — does NOT create files on disk.

Input parameters:

- `display_name` (string): Human-readable name (defaults to name)
- `has_pad_logic` (boolean): Generate IPadLogicHandler stub
- `icon` (string): Icon filename
- `name` (string, required): PascalCase app name, e.g. 'Metronome'

### `crosspad_interfaces` (~74 tokens)

Query crosspad-core interfaces and their implementations across all platforms. Use query="list" to list all interfaces, "implementations <InterfaceName>" to find implementations, or "capabilities" to show platform capability flags.

Input parameters:

- `query` (string, required): "list", "implementations <InterfaceName>", or "capabilities"

### `crosspad_apps` (~40 tokens)

List all registered CrossPad apps (found via REGISTER_APP macro or _register_*_app functions).

Input parameters:

- `platform` (string): Which platform to scan

### `crosspad_screenshot` (~110 tokens)

Capture a screenshot from the running CrossPad simulator. Saves PNG to screenshots/ dir by default. Requires the simulator to be running (use crosspad_run first).

Input parameters:

- `filename` (string): Custom filename (default: screenshot_<timestamp>.png)
- `region` (string): full: entire simulator window (490x680). lcd: LCD screen only (320x240).
- `save_to_file` (boolean): Save to disk (default: true). If false, returns base64 data inline.

### `crosspad_input` (~270 tokens)

Send input events to the running CrossPad simulator. Requires simulator to be running.

Actions:
  click {x, y}           — mouse click at window coordinates (490x680 window)
  pad_press {pad, vel}    — press pad 0-15 with velocity 0-127
  pad_release {pad}       — release pad 0-15
  encoder_rotate {delta}  — rotate encoder (positive=CW, negative=CCW)
  encoder_press           — press encoder button
  encoder_release         — release encoder button
  key {keycode}           — SDL keycode (e.g. 13=Enter, 27=Escape)

LCD area is centered at roughly x=85..405, y=20..260 within the 490x680 window.

Input parameters:

- `action` (string, required): Input action type
- `delta` (number): Rotation delta for encoder_rotate
- `keycode` (number): SDL keycode for key action
- `pad` (number): Pad index 0-15 for pad_press/pad_release
- `velocity` (number): Velocity 0-127 for pad_press (default: 127)
- `x` (number): X coordinate for click
- `y` (number): Y coordinate for click

### `crosspad_stats` (~83 tokens)

Query runtime statistics from the running simulator. Returns:
\- Platform capabilities (active flags)
\- Pad state (16 pads: pressed, playing, note, channel, RGB color)
\- Active/registered pad logic handlers
\- Registered apps list
\- Heap stats (SRAM/PSRAM free/total)
\- Settings summary (brightness, theme, kit, audio engine)

### `crosspad_settings` (~298 tokens)

Read or write CrossPad settings on the running simulator.

Read: action="get", category="all"|"display"|"keypad"|"vibration"|"wireless"|"audio"|"system"
Write: action="set", key="<setting_key>", value=<number> (booleans: 0/1)

Writable keys:
  lcd_brightness (0-255), rgb_brightness (0-255), theme_color (0-255), perf_stats_flags (bitmask)
  kit (0-255), audio_engine (0/1)
  keypad.enable, keypad.inactive_lights, keypad.eco_mode, keypad.send_stm/ble/usb/cc (0/1)
  vibration.enable, vibration.on_touch, vibration.in_min/max, vibration.out_min/max (0-255)
  master_fx.mute (0/1), master_fx.in_volume, master_fx.out_volume (0-100)

Changes are auto-saved to ~/.crosspad/preferences.json.

Input parameters:

- `action` (string, required): Read or write settings
- `category` (string): For get: all, display, keypad, vibration, wireless, audio, system
- `key` (string): For set: dotted key name (e.g. 'lcd_brightness', 'keypad.eco_mode')
- `value` (number): For set: numeric value (booleans: 0=false, 1=true)

## Diagnostics

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

## Score history

- 2026-08-03: 67
- 2026-08-02: 66
- 2026-08-01: 21
- 2026-07-31: 21
- 2026-07-30: 24
- 2026-07-28: 46
- 2026-07-27: 46

## Links

- npm package: https://www.npmjs.com/package/crosspad-mcp-server
- Socket report: https://socket.dev/npm/package/crosspad-mcp-server
- Repository: https://github.com/CrossPad/crosspad-mcp
- Changelog RSS feed: https://verifymcp.io/servers/crosspad-crosspad-mcp/crosspad-mcp-server/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/crosspad-crosspad-mcp/crosspad-mcp-server/changelog.json
- HTML version of this page: https://verifymcp.io/servers/crosspad-crosspad-mcp/crosspad-mcp-server