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Mcpfusion

Mcpfusion is an MCP server that adds tools to AI assistants such as Claude Desktop, Claude Code and Cursor. MCP Fusion - The TypeScript framework for secure MCP servers. It has 256 GitHub stars, is released under the Apache-2.0 license and runs locally with npx -y @mcpfusion/core.

github.com/vinkius-labs/mcpfusion (opens in a new tab)

  • Other
  • Apache-2.0
  • Actively maintained
View on GitHub (opens in a new tab)

Install Mcpfusion

Generated from the server's published package. Replace your-value with your own values.

Claude Desktop

claude_desktop_config.json
{
  "mcpServers": {
    "mcpfusion": {
      "command": "npx",
      "args": [
        "-y",
        "@mcpfusion/core"
      ]
    }
  }
}

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

Claude Code

claude mcp add --transport stdio mcpfusion -- npx -y @mcpfusion/core

Cursor

.cursor/mcp.json
{
  "mcpServers": {
    "mcpfusion": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@mcpfusion/core"
      ]
    }
  }
}

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

VS Code

.vscode/mcp.json
{
  "servers": {
    "mcpfusion": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@mcpfusion/core"
      ]
    }
  }
}

Config formats checked against the official docs on Oct 7, 2026: modelcontextprotocol.io (opens in a new tab), code.claude.com (opens in a new tab), cursor.com (opens in a new tab), code.visualstudio.com (opens in a new tab).

About Mcpfusion

The TypeScript framework for secure, MCP 2.0-native servers. MCP Fusion is a TypeScript framework that enforces security at the architectural level of every MCP server. Raw data never reaches the LLM without passing through a typed egress firewall. Tools are physically removed from the agent's namespace when the workflow state forbids them. Every behavioral surface is hashed, locked, and auditable in version control.

  • mcp
  • mcp-framework
  • mcp-server
  • model-context-protocol
  • chatgpt
  • claude
  • mcp-tools

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FAQ

Mcpfusion FAQ

Still curious? Email info@appsgit.com.

What is Mcpfusion?

Mcpfusion is an MCP server that adds tools to AI assistants such as Claude Desktop, Claude Code and Cursor. MCP Fusion - The TypeScript framework for secure MCP servers. It has 256 GitHub stars, is released under the Apache-2.0 license and runs locally with npx -y @mcpfusion/core. The source code is at github.com/vinkius-labs/mcpfusion.

How do I install the Mcpfusion MCP server?

Add the command npx -y @mcpfusion/core to your MCP client: put it in claude_desktop_config.json for Claude Desktop, run claude mcp add for Claude Code, or add it to .cursor/mcp.json (Cursor) or .vscode/mcp.json (VS Code). The snippets on this page are ready to paste.

Is Mcpfusion free?

The server is open source under the Apache-2.0 license, so running it is free. It does not declare any required API key.

Is Mcpfusion actively maintained?

The most recent commit was on Sep 20, 2026. The latest release is v5.1.0, published Sep 20, 2026. appsgit only lists MCP servers with a commit in the last six months and re-checks every server daily.