coingeckomcp

A CoinGecko MCP that lets AI securely fetch real-time crypto prices, market charts

Features

• ✅ Built with Model Context Protocol (MCP) SDK
• 🔐 Integrated authentication via Osiris Hub
• 📊 Memory (Development) database
• 🔷 TypeScript
• 🛠️ Example tools, resources, prompts, and schemas

Quick Start

1. Install dependencies:

   pnpm install
   

2. Configure environment:

   cp .env.example .env
   # Edit .env with your configuration
   

3. Start development server:

   pnpm run dev
   

Configuration

Environment Variables

• HUB_BASE_URL - Your Osiris Hub URL
• OAUTH_CLIENT_ID - OAuth client ID from Hub
• OAUTH_CLIENT_SECRET - OAuth client secret from Hub
• DATABASE_ADAPTER - Database type (memory)

Database Setup

Memory Database

No setup required. Data is stored in memory (development only). ⚠️ Warning: Data will be lost when the server restarts.

Development

Available Scripts

• pnpm run dev - Start development server with hot reload
• pnpm run build - Build for production (TypeScript → JavaScript)
• pnpm run start - Start production server
• pnpm run type-check - Run TypeScript type checking

Project Structure

coingeckomcp/
├── index.ts           # Main MCP server entry point
├── client.ts          # MCP client setup and configuration
├── tools/
│   └── hello-world.ts # Simple hello world tool
├── resources/
│   └── hello-world.ts # Hello world resource
├── prompts/
│   └── hello-world.ts # Hello world prompt template
├── schema/
│   └── index.ts       # Zod schema definitions
├── .env                    # Environment variables
├── .env.example           # Environment template
└── package.json           # Dependencies and scripts

MCP Components

Tools

Hello World Tool

A simple greeting tool that demonstrates basic MCP tool functionality.

Usage:

{
  "name": "hello_world",
  "arguments": {
    "name": "Alice"
  }
}

Resources

Hello World Resource

Provides a simple JSON resource demonstrating MCP resource functionality.

URI: hello://world

Prompts

Hello World Prompt

Generates prompts about specified topics.

Arguments:

• topic (optional): Topic to ask about (default: "osiris")

Adding New Components

Adding a Tool

Create a new file in tools/ and export the tool registration function:

import { McpServer } from '@modelcontextprotocol/sdk/server/mcp.js';
import { z } from 'zod';

export function registerMyTool(server: McpServer) {
  const MyToolSchema = z.object({
    param1: z.string().describe('Parameter description')
  });
  
  server.tool('my_tool', 'Description of what this tool does', MyToolSchema, async ({ param1 }) => {
    // Your tool logic here
    return {
      content: [{
        type: 'text',
        text: `Tool result: ${param1}`
      }]
    };
  });
}

Then register it in client.ts.

Adding a Resource

Create a new file in resources/ and export the resource registration function:

import { McpServer } from '@modelcontextprotocol/sdk/server/mcp.js';

export function registerMyResource(server: McpServer) {
  server.resource('my://resource', 'My Resource', 'Resource description', async () => {
    return {
      contents: [{
        uri: 'my://resource',
        mimeType: 'application/json',
        text: JSON.stringify({ data: 'Resource data' })
      }]
    };
  });
}

Authentication

This server uses Osiris Hub for authentication. Make sure your Hub is configured and your OAuth credentials are correct.

Deployment

1. Build the project:

   pnpm run build
   

2. Set production environment variables

3. Start the server:

   NODE_ENV=production pnpm run start
   

Support

• 📖 MCP Documentation
• 📖 Osiris SDK Documentation
• 💬 Community Discord
• 🐛 Issue Tracker

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Built with ❤️ using Model Context Protocol and Osiris SDK