# Arm MCP Server (MCP server)

> Arm MCP Server is an MCP server that adds tools to AI assistants such as Claude Desktop, Claude Code and Cursor. Official Arm MCP server for code migration, optimization, and Arm architecture guidance. It has 91 GitHub stars, is released under the Apache-2.0 license and runs locally with docker run -i --rm docker.io/armlimited/arm-mcp:2.4.0.

An MCP server providing AI assistants with tools and knowledge for Arm architecture development, migration, and optimization.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/arm/mcp |
| GitHub stars | 91 |
| License | Apache-2.0 |
| Language | Python |
| Transport | stdio |
| Packages | docker: docker.io/armlimited/arm-mcp:2.4.0 |
| Remote URL | none |
| Needs API key | no |
| Official | yes |
| Works with | Claude Desktop, Claude Code, Cursor, VS Code |
| Category | Other |
| Latest release | v3.2.0 (Oct 6, 2026) |
| Last commit | Oct 6, 2026 |
| MCP registry name | io.github.arm/arm-mcp |

## Install

### Claude Desktop (claude_desktop_config.json)

```json
{
  "mcpServers": {
    "arm-mcp-server": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "docker.io/armlimited/arm-mcp:2.4.0"
      ]
    }
  }
}
```

Settings > Developer > Edit Config. macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\. Restart Claude Desktop afterwards.

### Claude Code

```sh
claude mcp add --transport stdio arm-mcp-server -- docker run -i --rm docker.io/armlimited/arm-mcp:2.4.0
```

### Cursor (.cursor/mcp.json)

```json
{
  "mcpServers": {
    "arm-mcp-server": {
      "type": "stdio",
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "docker.io/armlimited/arm-mcp:2.4.0"
      ]
    }
  }
}
```

Project file; use ~/.cursor/mcp.json to enable it in every project.

### VS Code (.vscode/mcp.json)

```json
{
  "servers": {
    "arm-mcp-server": {
      "type": "stdio",
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "docker.io/armlimited/arm-mcp:2.4.0"
      ]
    }
  }
}
```

Config formats checked against the official docs on 2026-10-07.

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