RationalBloks MCP Server

Deploy production APIs in minutes. 44 tools for projects, schemas, deployments, and graph data.

What Is This?

RationalBloks MCP lets AI agents (Claude, Cursor, etc.) deploy production APIs from a JSON schema. No backend code to write. No infrastructure to manage.

"Create a task management API with tasks, projects, and users"
→ 2 minutes later: Production API running on Kubernetes

Installation

pip install rationalbloks-mcp

Quick Start

1. Get Your API Key

Visit rationalbloks.com/settings and create an API key.

2. Configure Your AI Agent

VS Code / Cursor - Add to settings.json:

{
  "mcp.servers": {
    "rationalbloks": {
      "command": "rationalbloks-mcp",
      "env": {
        "RATIONALBLOKS_API_KEY": "rb_sk_your_key_here"
      }
    }
  }
}

Claude Desktop - Add to claude_desktop_config.json:

{
  "mcpServers": {
    "rationalbloks": {
      "command": "rationalbloks-mcp",
      "env": {
        "RATIONALBLOKS_API_KEY": "rb_sk_your_key_here"
      }
    }
  }
}

44 Tools

Relational Read Operations (11 tools)

Relational Write Operations (7 tools)

Graph Schema Operations (11 tools)

Graph Data Operations (15 tools)

Schema Format

Schemas must be in FLAT format:

{
  "tasks": {
    "title": {"type": "string", "max_length": 200, "required": true},
    "status": {"type": "string", "max_length": 50, "enum": ["pending", "done"]},
    "due_date": {"type": "date", "required": false}
  },
  "projects": {
    "name": {"type": "string", "max_length": 100, "required": true}
  }
}

Field Types

Auto-Generated Fields

These are automatic - don't define them:

• id (UUID primary key)
• created_at (datetime)
• updated_at (datetime)

User Authentication

Use the built-in app_users table:

{
  "employee_profiles": {
    "user_id": {"type": "uuid", "foreign_key": "app_users.id", "required": true},
    "department": {"type": "string", "max_length": 100}
  }
}

Frontend

For frontend development, use our NPM packages:

npm install @rationalbloks/frontblok-auth @rationalbloks/frontblok-crud

These provide:

• frontblok-auth: Authentication, login, tokens, user context
• frontblok-crud: Generic CRUD via getApi().getAll(), getApi().create(), etc.

Environment Variables

Support

• Documentation: rationalbloks.com/docs
• Email: support@rationalbloks.com

License

Proprietary - Copyright 2026 RationalBloks. All Rights Reserved.