# Json Mcp

> JSON MCP Server

- **Type:** MCP server
- **Install:** `agentstack add mcp-vadimnastoyashchy-json-mcp`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [VadimNastoyashchy](https://agentstack.voostack.com/s/vadimnastoyashchy)
- **Installs:** 0
- **Category:** [Integrations](https://agentstack.voostack.com/c/integrations)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [VadimNastoyashchy](https://github.com/VadimNastoyashchy)
- **Source:** https://github.com/VadimNastoyashchy/json-mcp
- **Website:** https://www.npmjs.com/package/json-mcp-server

## Install

```sh
agentstack add mcp-vadimnastoyashchy-json-mcp
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

# 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.

---

  

---

## 🌟 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:**

```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
```

---

### ⚙️ Configuration

[](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
```

---

### ⚙️ 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
```

## Source & license

This open-source MCP server is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [VadimNastoyashchy](https://github.com/VadimNastoyashchy)
- **Source:** [VadimNastoyashchy/json-mcp](https://github.com/VadimNastoyashchy/json-mcp)
- **License:** MIT
- **Homepage:** https://www.npmjs.com/package/json-mcp-server

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/mcp-vadimnastoyashchy-json-mcp
- Seller: https://agentstack.voostack.com/s/vadimnastoyashchy
- Browse the marketplace: https://agentstack.voostack.com/browse

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Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.