# Ruv Swarm (MCP server)

> Ruv Swarm is an MCP server that adds tools to AI assistants such as Claude Desktop, Claude Code and Cursor. Neural network swarm orchestration with WebAssembly acceleration and MCP integration. It has 383 GitHub stars, is released under the MIT license and runs locally with npx -y ruv-swarm.

What if every task, every file, every function could truly think? Just for a moment. No LLM required. That's what ruv-swarm makes real.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/ruvnet/ruv-FANN |
| GitHub stars | 383 |
| License | MIT |
| Language | Rust |
| Transport | stdio |
| Packages | npm: ruv-swarm |
| Remote URL | none |
| Needs API key | no |
| Official | no |
| Works with | Claude Desktop, Claude Code, Cursor, VS Code |
| Category | Other |
| Latest release | none |
| Last commit | May 23, 2026 |
| MCP registry name | io.github.ruvnet/ruv-swarm |

## Install

### Claude Desktop (claude_desktop_config.json)

```json
{
  "mcpServers": {
    "ruv-swarm": {
      "command": "npx",
      "args": [
        "-y",
        "ruv-swarm"
      ],
      "env": {
        "RUV_SWARM_LOG_LEVEL": "your-value",
        "RUV_SWARM_DB_PATH": "your-value",
        "RUV_SWARM_ENABLE_SIMD": "your-value"
      }
    }
  }
}
```

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

### Claude Code

```sh
claude mcp add --env RUV_SWARM_LOG_LEVEL=your-value --env RUV_SWARM_DB_PATH=your-value --env RUV_SWARM_ENABLE_SIMD=your-value --transport stdio ruv-swarm -- npx -y ruv-swarm
```

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

```json
{
  "mcpServers": {
    "ruv-swarm": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "ruv-swarm"
      ],
      "env": {
        "RUV_SWARM_LOG_LEVEL": "your-value",
        "RUV_SWARM_DB_PATH": "your-value",
        "RUV_SWARM_ENABLE_SIMD": "your-value"
      }
    }
  }
}
```

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

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

```json
{
  "servers": {
    "ruv-swarm": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "ruv-swarm"
      ],
      "env": {
        "RUV_SWARM_LOG_LEVEL": "your-value",
        "RUV_SWARM_DB_PATH": "your-value",
        "RUV_SWARM_ENABLE_SIMD": "your-value"
      }
    }
  }
}
```

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

## Environment variables

- `RUV_SWARM_LOG_LEVEL`: Log level for ruv-swarm operations
- `RUV_SWARM_DB_PATH`: Database path for persistence storage
- `RUV_SWARM_ENABLE_SIMD`: Enable WebAssembly SIMD optimizations

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