Plugged.in Random Number Generator MCP Server

A state-of-the-art cryptographically secure random number generator server implementing the Model Context Protocol (MCP). This server provides advanced random number generation capabilities for AI applications, LLMs, and other systems requiring high-quality randomness.

🚀 Features

Cryptographically Secure: Uses Node.js built-in crypto module for cryptographically secure pseudorandom number generation (CSPRNG)
Multiple Data Types: Generate integers, floats, bytes, UUIDs, strings, booleans, and random choices
Flexible Configuration: Customizable ranges, counts, encodings, and character sets
MCP Compliant: Full compatibility with Model Context Protocol specification including tools and prompts
AI-Friendly Prompts: Built-in prompt to help LLMs understand they should use this server for random generation
Type Safety: Written in TypeScript with comprehensive type definitions
Error Handling: Robust input validation and error reporting
Performance Optimized: Efficient algorithms suitable for high-throughput applications

📦 Installation

Prerequisites

Node.js 18.0.0 or higher
npm or yarn package manager

Install via Desktop Extension (DXT)

For Claude Desktop users, you can install this server as a one-click Desktop Extension:

Download the latest .dxt file from the releases page
Open Claude Desktop
Go to Settings → Developer → MCP Servers
Click "Install from file" and select the downloaded .dxt file

Install from npm

npm install -g pluggedin-random-number-generator-mcp

Or install locally in your project:

npm install pluggedin-random-number-generator-mcp

Deploy with Smithery

Deploy this MCP server to the cloud using Smithery:

Fork this repository
Connect your GitHub account to Smithery
Navigate to the Deployments tab
Click "Deploy"

The server includes a smithery.yaml configuration file for easy deployment.

Build from Source

git clone https://github.com/VeriTeknik/pluggedin-random-number-generator-mcp.git
cd pluggedin-random-number-generator-mcp
npm install
npm run build

# Optional: Build DXT package
npm run build:dxt

🛠️ Usage

Running the Server

The server communicates via stdio (standard input/output) following the MCP protocol:

# Using the built version
node dist/index.js

# Using development mode
npm run dev

Integration with MCP Clients

For npm installation (recommended):

Add to your MCP client configuration. For Claude Desktop, add to your claude_desktop_config.json:

{
  "mcpServers": {
    "random-generator": {
      "command": "npx",
      "args": ["-y", "pluggedin-random-number-generator-mcp@latest"]
    }
  }
}

This will always use the latest version from npm without requiring a global installation.

For local installation:

{
  "mcpServers": {
    "random-generator": {
      "command": "node",
      "args": ["node_modules/pluggedin-random-number-generator-mcp/dist/index.js"]
    }
  }
}

🔧 Available Tools

1. Generate Random Integers

Generate cryptographically secure random integers within a specified range.

Parameters:

min (integer, optional): Minimum value (inclusive), default: 0
max (integer, optional): Maximum value (inclusive), default: 100
count (integer, optional): Number of integers to generate, default: 1, max: 1000

Example:

{
  "name": "generate_random_integer",
  "arguments": {
    "min": 1,
    "max": 100,
    "count": 5
  }
}

2. Generate Random Floats

Generate cryptographically secure random floating-point numbers.

Parameters:

min (number, optional): Minimum value (inclusive), default: 0.0
max (number, optional): Maximum value (exclusive), default: 1.0
count (integer, optional): Number of floats to generate, default: 1, max: 1000
precision (integer, optional): Decimal places to round to, default: 6, max: 15

Example:

{
  "name": "generate_random_float", 
  "arguments": {
    "min": 0.0,
    "max": 1.0,
    "count": 3,
    "precision": 4
  }
}

3. Generate Random Bytes

Generate cryptographically secure random bytes in various encodings.

Parameters:

length (integer, optional): Number of bytes to generate, default: 32, max: 1024
encoding (string, optional): Output encoding ("hex", "base64", "binary"), default: "hex"

Example:

{
  "name": "generate_random_bytes",
  "arguments": {
    "length": 32,
    "encoding": "hex"
  }
}

4. Generate UUIDs

Generate cryptographically secure UUID version 4 identifiers.

Parameters:

count (integer, optional): Number of UUIDs to generate, default: 1, max: 100
format (string, optional): UUID format ("standard", "compact"), default: "standard"

Example:

{
  "name": "generate_uuid",
  "arguments": {
    "count": 3,
    "format": "standard"
  }
}

5. Generate Random Strings

Generate cryptographically secure random strings with customizable character sets.

Parameters:

length (integer, optional): String length, default: 16, max: 256
charset (string, optional): Character set ("alphanumeric", "alphabetic", "numeric", "hex", "base64", "ascii_printable"), default: "alphanumeric"
count (integer, optional): Number of strings to generate, default: 1, max: 100

Example:

{
  "name": "generate_random_string",
  "arguments": {
    "length": 12,
    "charset": "alphanumeric",
    "count": 2
  }
}

6. Generate Random Choices

Randomly select items from a provided list using cryptographically secure randomness.

Parameters:

choices (array, required): Array of string items to choose from
count (integer, optional): Number of items to select, default: 1
allow_duplicates (boolean, optional): Whether to allow duplicate selections, default: true

Example:

{
  "name": "generate_random_choice",
  "arguments": {
    "choices": ["apple", "banana", "cherry", "date"],
    "count": 2,
    "allow_duplicates": false
  }
}

7. Generate Random Booleans

Generate cryptographically secure random boolean values with configurable probability.

Parameters:

count (integer, optional): Number of booleans to generate, default: 1, max: 1000
probability (number, optional): Probability of true (0.0 to 1.0), default: 0.5

Example:

{
  "name": "generate_random_boolean",
  "arguments": {
    "count": 10,
    "probability": 0.7
  }
}

🤖 AI Prompts

The server includes a built-in prompt to help LLMs understand they should use this server for random number generation rather than attempting to generate random values themselves.

Available Prompt: `generate_random`

This prompt educates the AI about its limitations in generating random numbers and guides it to use the available cryptographically secure tools.

Parameters:

type (string, optional): Type of random value needed (integer, float, uuid, string, bytes, choice, boolean)
requirements (string, optional): Specific requirements for the random generation

Example Usage: When an LLM receives a request like "Generate a random password" or "Pick a random number", the prompt will:

Acknowledge that LLMs cannot generate truly random values
Explain the available cryptographically secure tools
Guide the AI to use the appropriate tool for the task

This ensures that all random generation in your application uses proper cryptographic methods rather than predictable AI-generated patterns.

🔒 Security Features

This server implements several security best practices:

Cryptographically Secure Randomness: All random number generation uses Node.js crypto module functions (randomBytes, randomInt, randomUUID) which provide cryptographically secure pseudorandom numbers suitable for security-sensitive applications.
Input Validation: Comprehensive validation of all input parameters to prevent injection attacks and ensure data integrity.
Rate Limiting: Built-in limits on generation counts to prevent resource exhaustion attacks.
Error Handling: Secure error messages that don't leak sensitive information about the system state.

🧪 Testing

The server includes a comprehensive test suite that validates all functionality:

# Run the test suite
node test.js

The test suite covers:

Tool discovery and listing
All random generation functions
Input validation and error handling
Output format verification
Statistical properties validation

📊 Performance

The server is optimized for performance while maintaining security:

Efficient Algorithms: Uses optimized native crypto functions
Memory Management: Minimal memory footprint with efficient buffer handling
Concurrent Requests: Thread-safe design supporting multiple simultaneous requests
Scalability: Suitable for high-throughput applications

🔧 Development

Project Structure

pluggedin-random-number-generator-mcp/
├── src/
│   └── index.ts          # Main server implementation
├── dist/                 # Compiled JavaScript output
├── test.js              # Comprehensive test suite
├── package.json         # Project configuration
├── tsconfig.json        # TypeScript configuration
└── README.md           # This documentation

Building

npm run build

Development Mode

npm run dev

Testing with MCP Inspector

You can test the server using the MCP Inspector tool:

npm run inspector

This will start the MCP Inspector web interface where you can:

View available tools
Test tool execution
Inspect request/response payloads
Debug server behavior

🤝 Contributing

Contributions are welcome! Please feel free to submit a Pull Request. For major changes, please open an issue first to discuss what you would like to change.

Development Guidelines

Follow TypeScript best practices
Maintain comprehensive test coverage
Update documentation for new features
Ensure all tests pass before submitting
Follow semantic versioning for releases

📄 License

This project is licensed under the MIT License - see the LICENSE file for details.

🔗 Related Projects

Model Context Protocol - The official MCP specification
Plugged.in - MCP server management and discovery platform
MCP SDK - Official TypeScript SDK for MCP

📞 Support

For support, questions, or feature requests:

Open an issue on GitHub
Visit the Plugged.in platform for MCP server management
Check the MCP documentation for protocol details

Name		Name	Last commit message	Last commit date
Latest commit History 8 Commits
dist		dist
dxt		dxt
scripts		scripts
src		src
.dockerignore		.dockerignore
.gitignore		.gitignore
.mcp.json		.mcp.json
.mcp.json.example		.mcp.json.example
.npmignore		.npmignore
CHANGELOG.md		CHANGELOG.md
CODE_OF_CONDUCT.md		CODE_OF_CONDUCT.md
CONTRIBUTING.md		CONTRIBUTING.md
Dockerfile		Dockerfile
Dockerfile.alpine		Dockerfile.alpine
Dockerfile.minimal		Dockerfile.minimal
Dockerfile.smithery		Dockerfile.smithery
LICENSE		LICENSE
README.md		README.md
SECURITY.md		SECURITY.md
SMITHERY.md		SMITHERY.md
claude_desktop_config.json		claude_desktop_config.json
docker-compose.yml		docker-compose.yml
glama.json		glama.json
package-lock.json		package-lock.json
package.json		package.json
smithery.yaml		smithery.yaml
test.js		test.js
tsconfig.json		tsconfig.json

License

VeriTeknik/pluggedin-random-number-generator-mcp

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Plugged.in Random Number Generator MCP Server

🚀 Features

📦 Installation

Prerequisites

Install via Desktop Extension (DXT)

Install from npm

Deploy with Smithery

Build from Source

🛠️ Usage

Running the Server

Integration with MCP Clients

For npm installation (recommended):

For local installation:

🔧 Available Tools

1. Generate Random Integers

2. Generate Random Floats

3. Generate Random Bytes

4. Generate UUIDs

5. Generate Random Strings

6. Generate Random Choices

7. Generate Random Booleans

🤖 AI Prompts

Available Prompt: generate_random

🔒 Security Features

🧪 Testing

📊 Performance

🔧 Development

Project Structure

Building

Development Mode

Testing with MCP Inspector

🤝 Contributing

Development Guidelines

📄 License

🔗 Related Projects

📞 Support

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Resources

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Contributing

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Available Prompt: `generate_random`

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