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README.md
# JSON MCP

[![Smithery Badge](https://smithery.ai/badge/@VadimNastoyashchy/json-mcp)](https://smithery.ai/server/@VadimNastoyashchy/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.

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<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>

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## 🌟 Key Features

āœ… **Fast and lightweight**  
āœ… **LLM-friendly functionality**

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## šŸŽ„ Demo

Below is a demo showcasing the `split` functionality:

![Demo: Split JSON](./assets/split-demo.gif)

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## šŸ”§ Use Cases (Tools)

### 1. **`split`**

Split a JSON file into a specified number of objects.

> **Note:** The file path must be provided.

**Prompt Example:**

```plaintext
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:**

```plaintext
Merge json files from /Users/json-mcp/tests
```

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### āš™ļø 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">](https://insiders.vscode.dev/redirect?url=vscode:mcp/install?%7B%22name%22%3A%22%40VadimNastoyashchy%2Fjson-mcp%22%2C%22command%22%3A%22npx%22%2C%22args%22%3A%5B%22-y%22%2C%22%40smithery%2Fcli%40latest%22%2C%22run%22%2C%22%40VadimNastoyashchy%2Fjson-mcp%22%2C%22--key%22%2C%2292357446-baf5-439c-b7c1-b5263e221b57%22%5D%7D)

#### VS Code Manual Configuration

To configure the JSON MCP server manually in VS Code, update the **User Settings (JSON)** file:

```json
{
  "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:

```bash
# 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](https://smithery.ai/server/@VadimNastoyashchy/json-mcp):

```bash
npx -y @smithery/cli install @VadimNastoyashchy/json-mcp --client claude
```

---

### āš™ļø Installation Server

#### Install globally

```bash
npm install -g json-mcp-server@latest
```

#### Run after global installation

```bash
json-mcp-server
```

#### Using npx with latest version (recommended)

```bash
npx json-mcp-server@latest
```

TDQS

B3.3/5.0

Scored across 2 tools

Disambiguation5/5

Merge and split are clearly opposite operations. An agent can easily distinguish their purposes without ambiguity.

Naming Consistency5/5

Both tools use concise, single-word verbs (merge, split) following a consistent pattern.

Tool Count4/5

Two tools is slightly below the typical well-scoped range, but the server's narrow focus on merge/split operations justifies this minimal set.

Completeness4/5

The server covers the core merge and split operations for JSON files. Minor gaps like transform or validate exist, but the surface is complete for its stated purpose.

Maintenance

ActivityInactive
ResponsivenessNo issues