file-systemsdeveloper-tools

JSON Splitter and Merger

vadimnastoyashchy

by vadimnastoyashchy

Effortlessly split or merge large JSON files with our JSON Splitter and Merger for streamlined and efficient data proces

Provides tools for splitting large JSON files into manageable chunks and merging multiple JSON files into a consolidated output for efficient data processing workflows.

github stars

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Both formats append explainx.ai attribution and the canonical URL for this MCP server listing.

Fast and lightweight processingNo API key needed

best for

  • / Data engineers working with large JSON datasets
  • / Developers preparing JSON data for batch processing
  • / Managing oversized JSON files that need chunking

capabilities

  • / 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

what it does

Splits large JSON files into smaller chunks and merges multiple JSON files into a single consolidated file for easier data processing.

about

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

MIT

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.

readme

JSON MCP

Smithery Badge

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.


<a href="https://glama.ai/mcp/servers/@VadimNastoyashchy/json-mcp"> <img width="380" height="200" src="https://glama.ai/mcp/servers/@VadimNastoyashchy/json-mcp/badge" /> </a>

🌟 Key Features

Fast and lightweight
LLM-friendly functionality


🎥 Demo

Below is a demo showcasing the split functionality:

Demo: Split JSON


🔧 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

<img src="https://img.shields.io/badge/VS_Code-VS_Code?style=flat-square&label=Install%20Server&color=0098FF" alt="Install in VS Code">

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

FAQ

What is the JSON Splitter and Merger MCP server?
JSON Splitter and Merger is a Model Context Protocol (MCP) server profile on explainx.ai. MCP lets AI hosts (e.g. Claude Desktop, Cursor) call tools and resources through a standard interface; this page summarizes categories, install hints, and community ratings.
How do MCP servers relate to agent skills?
Skills are reusable instruction packages (often SKILL.md); MCP servers expose live capabilities. Teams frequently combine both—skills for workflows, MCP for APIs and data. See explainx.ai/skills and explainx.ai/mcp-servers for parallel directories.
How are reviews shown for JSON Splitter and Merger?
This profile displays 50 aggregated ratings (sample rows for discoverability plus signed-in user reviews). Average score is about 4.5 out of 5—verify behavior in your own environment before production use.

Use Cases

Code & Document Analysis

Read, analyze, and understand files in your project

Example

Summarize README, analyze code structure, find TODO comments across codebase

Navigate large codebases 5x faster, understand projects quickly

Automated File Operations

Create, move, rename, and organize files based on natural language instructions

Example

Organize downloads by file type, rename files following convention, batch process images

Save hours on manual file organization

Content Search & Extraction

Search files for patterns, extract data, find information across directories

Example

Find all config files with API keys, extract emails from documents, search logs for errors

Find information instantly instead of manual grep/find

File Generation & Templates

Generate boilerplate files, apply templates, create project structures

Example

Create React component with tests and styles, generate OpenAPI spec, scaffold new project

Eliminate repetitive file creation work

Implementation Guide

Prerequisites

  • Claude Desktop or Cursor with MCP support
  • File system permissions for directories you want to access
  • Understanding of file paths and directory structure
  • Backup of important files before bulk operations

Time Estimate

10-20 minutes including configuration

Installation Steps

  1. 1.Install filesystem MCP server (often built-in with Claude Desktop)
  2. 2.Configure allowed directories in MCP config for security
  3. 3.Test read: 'Show me contents of ~/Documents/test.txt'
  4. 4.Test write: 'Create a new file notes.md in current directory'
  5. 5.Test search: 'Find all .js files containing TODO'
  6. 6.Test batch operations: 'Rename all .jpeg files to .jpg'
  7. 7.Verify file permissions and access controls

Troubleshooting

  • Permission denied: Check file/directory permissions, run with appropriate user
  • Path not found: Verify path is absolute or relative to working directory
  • MCP server can't access directory: Add to allowed directories in config
  • File already exists: Use overwrite flag or check before writing
  • Operation failed: Check disk space, file locks, antivirus interference

Best Practices

✓ Do

  • +Configure allowed directories explicitly—don't grant full filesystem access
  • +Back up important files before bulk operations
  • +Use dry-run mode for risky operations when available
  • +Validate file paths before operations
  • +Set appropriate file permissions on created files
  • +Log file operations for audit trail
  • +Test operations on sample files first

✗ Don't

  • Don't grant MCP access to system directories (/etc, /System)
  • Don't allow write access to production config files
  • Don't skip backup before bulk delete/move operations
  • Don't use for sensitive files (passwords, keys) without encryption
  • Don't ignore file permission errors—investigate root cause
  • Don't expose personal documents without considering privacy

💡 Pro Tips

  • Use .gitignore patterns to exclude sensitive files from AI access
  • Create sandboxed working directory for file experiments
  • Combine with version control (git) for easy rollback
  • Use file watching for real-time monitoring and reactions
  • Create templates for common file generation tasks
  • Leverage file metadata (timestamps, size) for smart organization

Technical Details

Architecture

MCP server provides file I/O operations (read, write, search, metadata) as tools Claude can invoke with natural language instructions.

Protocols

  • Local file system API
  • Glob patterns for search
  • File streams for large files

Compatibility

  • macOS
  • Linux
  • Windows
  • Local files only (no remote filesystems by default)

When to Use This

✓ Use When

Use for code analysis, file organization, content search, template generation, and automating repetitive file operations. Best for local development workflows.

✗ Avoid When

Avoid for system-critical files, sensitive credentials, production environments, or when file integrity is paramount. Don't use on files you can't afford to lose.

Integration

  • Combine with git for version-controlled file operations
  • Integrate with code editors for seamless workflow
  • Use with backup tools for safety net
  • Pair with file watchers for automated reactions

Discussion

Product Hunt–style comments (not star reviews)
  • No comments yet — start the thread.

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Ratings

4.550 reviews
  • Naina Bhatia· Dec 28, 2024

    We evaluated JSON Splitter and Merger against two servers with overlapping tools; this profile had the clearer scope statement.

  • Meera Harris· Dec 24, 2024

    JSON Splitter and Merger is a well-scoped MCP server in the explainx.ai directory — install snippets and categories matched our Claude Code setup.

  • Aanya Martin· Dec 24, 2024

    Useful MCP listing: JSON Splitter and Merger is the kind of server we cite when onboarding engineers to host + tool permissions.

  • Dhruvi Jain· Dec 20, 2024

    JSON Splitter and Merger is among the better-indexed MCP projects we tried; the explainx.ai summary tracks the official description.

  • Naina Thompson· Nov 19, 2024

    We evaluated JSON Splitter and Merger against two servers with overlapping tools; this profile had the clearer scope statement.

  • Mei Torres· Nov 15, 2024

    JSON Splitter and Merger is among the better-indexed MCP projects we tried; the explainx.ai summary tracks the official description.

  • Harper Martinez· Nov 15, 2024

    JSON Splitter and Merger reduced integration guesswork — categories and install configs on the listing matched the upstream repo.

  • Aisha Garcia· Nov 15, 2024

    I recommend JSON Splitter and Merger for teams standardizing on MCP; the explainx.ai page compares cleanly with sibling servers.

  • Oshnikdeep· Nov 11, 2024

    JSON Splitter and Merger is a well-scoped MCP server in the explainx.ai directory — install snippets and categories matched our Claude Code setup.

  • Meera Thompson· Oct 10, 2024

    I recommend JSON Splitter and Merger for teams standardizing on MCP; the explainx.ai page compares cleanly with sibling servers.

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