Reason MCP Server: Install & Setup

Install Reason in Claude Code

Claude Code

claude mcp add --transport http reason https://mcp.reasonmachines.com/mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "reason": {
      "url": "https://mcp.reasonmachines.com/mcp"
    }
  }
}

Frequently asked questions

What does the Reason MCP server do?

Start and manage Reason cloud coding agents, projects and sessions from any MCP client.

Is the Reason MCP server free?

The server is free, but you will likely need an account. The server itself is free, but it connects to a service that needs an account or API key, which may have paid tiers. Check the provider for current pricing.

Does Reason run locally or remotely?

Remote. Hosted by the provider. You connect with a URL, nothing to install.

How do I add Reason to Claude Code?

Run: claude mcp add --transport http reason https://mcp.reasonmachines.com/mcp

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