RationalBloks MCP Server: Install & Setup

Install RationalBloks in Claude Code

Remote URL

Claude Code

claude mcp add --transport http rationalbloks https://mcp.rationalbloks.com/

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

{
  "mcpServers": {
    "rationalbloks": {
      "url": "https://mcp.rationalbloks.com/"
    }
  }
}

PyPI (uv)

Claude Code

claude mcp add rationalbloks -e RATIONALBLOKS_API_KEY=... -- uvx rationalbloks-mcp

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

{
  "mcpServers": {
    "rationalbloks": {
      "command": "uvx",
      "args": [
        "rationalbloks-mcp"
      ],
      "env": {
        "RATIONALBLOKS_API_KEY": "..."
      }
    }
  }
}

Replace each ... with your own value.

Frequently asked questions

What does the RationalBloks MCP server do?

Deploy production REST and Neo4j Graph APIs from JSON schemas in seconds.

Is the RationalBloks 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 RationalBloks run locally or remotely?

Local + Remote. Can run locally or be used as a hosted remote server.

How do I add RationalBloks to Claude Code?

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

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