Skip to main content
Glama
JSON MCP Boilerplate

JSON MCP Boilerplate

by ricleedo

MCP Server Boilerplate

A starter template for building MCP (Model Context Protocol) servers. This boilerplate provides a clean foundation for creating your own MCP server that can integrate with Claude, Cursor, or other MCP-compatible AI assistants.

Purpose

This boilerplate helps you quickly start building:

  • Custom tools for AI assistants

  • Resource providers for dynamic content

  • Prompt templates for common operations

  • Integration points for external APIs and services

Related MCP server: MCP Server Boilerplate

Features

  • Simple "hello-world" tool example

  • TypeScript support with proper type definitions

  • Easy installation scripts for different MCP clients

  • Clean project structure ready for customization

How It Works

This MCP server template provides:

  1. A basic server setup using the MCP SDK

  2. Example tool implementation

  3. Build and installation scripts

  4. TypeScript configuration for development

The included example demonstrates how to create a simple tool that takes a name parameter and returns a greeting.

Getting Started

# Clone the boilerplate
git clone <your-repo-url>
cd mcp-server-boilerplate

# Install dependencies
pnpm install

# Build the project
pnpm run build

# Start the server
pnpm start

Installation Scripts

This boilerplate includes convenient installation scripts for different MCP clients:

# For Claude Desktop
pnpm run install-desktop

# For Cursor
pnpm run install-cursor

# For Claude Code
pnpm run install-code

# Generic installation
pnpm run install-server

These scripts will build the project and automatically update the appropriate configuration files.

Usage with Claude Desktop

The installation script will automatically add the configuration, but you can also manually add it to your claude_desktop_config.json file:

{
  "mcpServers": {
    "your-server-name": {
      "command": "node",
      "args": ["/path/to/your/dist/index.js"]
    }
  }
}

Then restart Claude Desktop to connect to the server.

Customizing Your Server

Adding Tools

Tools are functions that the AI assistant can call. Here's the basic structure:

server.tool(
  "tool-name",
  "Description of what the tool does",
  {
    // Zod schema for parameters
    param1: z.string().describe("Description of parameter"),
    param2: z.number().optional().describe("Optional parameter"),
  },
  async ({ param1, param2 }) => {
    // Your tool logic here
    return {
      content: [
        {
          type: "text",
          text: "Your response",
        },
      ],
    };
  }
);

Adding Resources

Resources provide dynamic content that the AI can access:

server.resource(
  "resource://example/{id}",
  "Description of the resource",
  async (uri) => {
    // Extract parameters from URI
    const id = uri.path.split("/").pop();

    return {
      contents: [
        {
          uri,
          mimeType: "text/plain",
          text: `Content for ${id}`,
        },
      ],
    };
  }
);

Adding Prompts

Prompts are reusable templates:

server.prompt(
  "prompt-name",
  "Description of the prompt",
  {
    // Parameters for the prompt
    topic: z.string().describe("The topic to discuss"),
  },
  async ({ topic }) => {
    return {
      description: `A prompt about ${topic}`,
      messages: [
        {
          role: "user",
          content: {
            type: "text",
            text: `Please help me with ${topic}`,
          },
        },
      ],
    };
  }
);

Project Structure

├── src/
│   └── index.ts          # Main server implementation
├── scripts/              # Installation and utility scripts
├── dist/                 # Compiled JavaScript (generated)
├── package.json          # Project configuration
├── tsconfig.json         # TypeScript configuration
└── README.md            # This file

Development

  1. Make changes to src/index.ts

  2. Run pnpm run build to compile

  3. Test your server with pnpm start

  4. Use the installation scripts to update your MCP client configuration

Next Steps

  1. Update package.json with your project details

  2. Customize the server name and tools in src/index.ts

  3. Add your own tools, resources, and prompts

  4. Integrate with external APIs or databases as needed

License

MIT

Available Tools

2 tools
json_extractA

Extract specific data using paths, filters, patterns, or slices from JSON files. Always use this tool when you need to retrieve particular values, filter arrays/objects by conditions, search for patterns, or slice data. Ideal for targeted data extraction, data transformation, and focused analysis of specific JSON elements.

Inputs: file_path (required), path, filter, pattern, +5 more.

json_readA

Read and analyze JSON. Always use this tool to explore JSON structure, understand data schema, or get high-level overviews of large JSON. Use this for initial data exploration or when you need to understand the shape and types of data before extracting specific values.

Inputs: file_path (required), path, max_depth, max_keys, +4 more.

Tool Schema Changelog

Recent tool additions, removals, and schema changes observed during successful MCP inspections.

Loading tool schema changelog…

    TDQS

    A3.9/5.0

    Scored across 2 tools

    Disambiguation5/5

    The two tools have clearly distinct purposes: json_extract is for targeted data extraction and transformation, while json_read is for initial exploration and schema understanding. Their descriptions explicitly guide when to use each, eliminating any ambiguity or overlap in functionality.

    Naming Consistency5/5

    Both tools follow a consistent verb_noun pattern (json_extract and json_read) with the same prefix 'json_' and clear action verbs. This predictable naming makes it easy for agents to understand and select the appropriate tool.

    Tool Count2/5

    With only two tools, the server feels too thin for a JSON processing domain, lacking essential operations like json_write, json_validate, or json_transform. While the tools cover reading and extraction, the scope is incomplete for typical JSON workflows, making it borderline inadequate.

    Completeness2/5

    The tool surface has significant gaps: it supports reading and extraction but lacks write, update, validation, or advanced transformation capabilities. This incomplete coverage will likely cause agent failures when tasks require modifying or validating JSON data, limiting practical utility.

    Maintenance

    ActivityInactive
    ResponsivenessNo recent community issues

    Related MCP Connectors

    Related MCP Servers

    • F
      license
      Not graded
      quality
      D
      maintenance
      A starter template for building MCP servers with TypeScript support, example tools, and automated installation scripts for Claude Desktop, Cursor, and other MCP-compatible AI assistants. Provides a foundation for creating custom tools, resource providers, and prompt templates.
      11 npm
      -
    • F
      license
      C
      quality
      D
      maintenance
      A starter template for building MCP (Model Context Protocol) servers that integrate with Claude, Cursor, or other MCP-compatible AI assistants. Provides a clean foundation with TypeScript support, example tool implementation, and installation scripts for quick customization.
      2
      5 npm
      -
    • F
      license
      C
      quality
      D
      maintenance
      A starter template for building custom MCP (Model Context Protocol) servers that can integrate with Claude, Cursor, or other MCP-compatible AI assistants. Provides a clean foundation with TypeScript support, example implementations, and installation scripts for quickly creating custom tools, resources, and prompts.
      2
      5 npm
      -
    • F
      license
      C
      quality
      D
      maintenance
      A starter template for building custom MCP servers that can integrate with Claude, Cursor, or other MCP-compatible AI assistants. Provides a clean foundation with TypeScript support, example implementations, and easy installation scripts for quickly creating tools, resources, and prompt templates.
      2
      5 npm
      -