MCP Servers

Coin Flip MCP Server

Enables interaction with a tool for generating true random coin flips via random.org's API, supporting multiple custom side configurations and illustrating the Model Context Protocol.

TeglonLabs

Research & Data

Visit Server

Tools

flip_coin

Flip a coin with n sides using true randomness from random.org. For 3-sided coins, try creative side names like: - past/present/future (temporal analysis) - true/unknown/false (epistemic states) - win/draw/lose (outcome evaluation) - rock/paper/scissors (cyclic relationships) - less/same/more (abstraction levels) - below/within/above (hierarchical positioning) - predecessor/current/successor (ordinal progression) Meta-usage patterns: 1. Use less/same/more to guide abstraction level of discourse 2. Use past/present/future to determine temporal focus 3. Chain multiple flips to create decision trees 4. Use predecessor/current/successor for ordinal analysis Ordinal Meta-patterns: - Use predecessor to refine previous concepts - Use current to stabilize existing patterns - Use successor to evolve into new forms Default ternary values are -/0/+

README

Coin Flip MCP Server

An MCP server that provides true random coin flips using random.org's randomness API. This server demonstrates the Model Context Protocol by providing a tool for generating random outcomes with configurable sides.

Features

Tools

flip_coin - Flip a coin with configurable number of sides
- Optional sides parameter (default: 2)
- Uses true randomness from random.org
- Special handling for edge cases (0, 1, or negative sides)
- For 2 sides: Returns "Heads" or "Tails"
- For 3 sides: Returns "Heads", "Tails", or "_"
- For n>3 sides: Returns "It landed on side X"

Development

Install dependencies:

npm install

Build the server:

npm run build

For development with auto-rebuild:

npm run watch

Installation

To use with Claude Desktop, add the server config:

On MacOS: ~/Library/Application Support/Claude/claude_desktop_config.json
On Windows: %APPDATA%/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "coin-flip": {
      "command": "npx",
      "args": ["-y", "@modelcontextprotocol/server-coin-flip"]
    }
  }
}

Example Usage

Once connected to an MCP client like Claude Desktop, you can use natural language to interact with the coin flip tool. For example:

"Flip a coin"
"Roll a 6-sided die"
"Give me a random number between 1 and 20"

The server will use true randomness from random.org to generate the result.

Debugging

Since MCP servers communicate over stdio, debugging can be challenging. We recommend using the MCP Inspector:

npx @modelcontextprotocol/inspector node build/index.js

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

License

MIT

Recommended Servers

dbt Semantic Layer MCP Server

A server that enables querying the dbt Semantic Layer through natural language conversations with Claude Desktop and other AI assistants, allowing users to discover metrics, create queries, analyze data, and visualize results.

Featured

TypeScript

mixpanel

Connect to your Mixpanel data. Query events, retention, and funnel data from Mixpanel analytics.

Featured

TypeScript

Sequential Thinking MCP Server

This server facilitates structured problem-solving by breaking down complex issues into sequential steps, supporting revisions, and enabling multiple solution paths through full MCP integration.

Featured

Python

MCP PubMed Search

Server to search PubMed (PubMed is a free, online database that allows users to search for biomedical and life sciences literature). I have created on a day MCP came out but was on vacation, I saw someone post similar server in your DB, but figured to post mine.

Featured

Python

Crypto Price & Market Analysis MCP Server

A Model Context Protocol (MCP) server that provides comprehensive cryptocurrency analysis using the CoinCap API. This server offers real-time price data, market analysis, and historical trends through an easy-to-use interface.

Featured

TypeScript

Nefino MCP Server

Provides large language models with access to news and information about renewable energy projects in Germany, allowing filtering by location, topic (solar, wind, hydrogen), and date range.

Official

Python

Vectorize

Vectorize MCP server for advanced retrieval, Private Deep Research, Anything-to-Markdown file extraction and text chunking.

Official

JavaScript

mcp-solver

A Model Context Protocol (MCP) server that exposes MiniZinc constraint solving capabilities to Large Language Models.

Local

Python

Excel Reader Server

A Model Context Protocol (MCP) server that provides tools for reading Excel (xlsx) files, enabling extraction of data from entire workbooks or specific sheets with results returned in structured JSON format.

Local

Python

MATLAB MCP Server

Integrates MATLAB with AI to execute code, generate scripts from natural language, and access MATLAB documentation seamlessly.

Local

JavaScript