
JSON Splitter and Merger
Splits large JSON files into smaller chunks and merges multiple JSON files into a single consolidated file for easier data processing.
Provides tools for splitting large JSON files into manageable chunks and merging multiple JSON files into a consolidated output for efficient data processing workflows.
What it does
- Split JSON files into specified number of objects per chunk
- Merge multiple JSON files from a folder into one file
- Process large JSON datasets efficiently
- Handle JSON file manipulation through simple commands
Best for
About JSON Splitter and Merger
JSON Splitter and Merger is a community-built MCP server published by vadimnastoyashchy that provides AI assistants with tools and capabilities via the Model Context Protocol. Effortlessly split or merge large JSON files with our JSON Splitter and Merger for streamlined and efficient data proces It is categorized under file systems, developer tools. This server exposes 2 tools that AI clients can invoke during conversations and coding sessions.
How to install
You can install JSON Splitter and Merger in your AI client of choice. Use the install panel on this page to get one-click setup for Cursor, Claude Desktop, VS Code, and other MCP-compatible clients. This server runs locally on your machine via the stdio transport.
License
JSON Splitter and Merger is released under the MIT license. This is a permissive open-source license, meaning you can freely use, modify, and distribute the software.
Tools (2)
Split a JSON file into a specified number of objects
Merge JSON files into a one JSON file
JSON MCP
The Model Context Protocol (MCP) server empowers LLMs to efficiently interact with JSON files. With JSON MCP, you can split, merge, and find specific data, validate within JSON files based on defined conditions.
🌟 Key Features
✅ Fast and lightweight
✅ LLM-friendly functionality
🎥 Demo
Below is a demo showcasing the split functionality:

🔧 Use Cases (Tools)
1. split
Split a JSON file into a specified number of objects.
Note: The file path must be provided.
Prompt Example:
Split JSON file from /Users/json-mcp/tests/merged.json
5 objects per file
2. merge
Merge JSON files into a one JSON file
Note: The folder path should be provided
Prompt Example:
Merge json files from /Users/json-mcp/tests
⚙️ Configuration
VS Code Manual Configuration
To configure the JSON MCP server manually in VS Code, update the User Settings (JSON) file:
{
"mcp": {
"servers": {
"json-mcp-server": {
"command": "npx",
"args": ["json-mcp-server@latest"]
}
}
}
}
Installation in VS Code
You can install the JSON MCP server using the VS Code CLI:
# For VS Code
code --add-mcp '{"name":"json-mcp-server","command":"npx","args": ["json-mcp-server@latest"]}'
After installation, the JSON MCP server will be available for use with your GitHub Copilot agent in VS Code.
Claude Desktop
To install json-mcp for Claude Desktop automatically via Smithery:
npx -y @smithery/cli install @VadimNastoyashchy/json-mcp --client claude
⚙️ Installation Server
Install globally
npm install -g json-mcp-server@latest
Run after global installation
json-mcp-server
Using npx with latest version (recommended)
npx json-mcp-server@latest
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