Koskamo

mcp-json-tools MCP

An MCP server providing tools for AI agents to validate JSON against schemas, diff objects, transform data (pick, rename, flatten), and convert between CSV, JSON, and YAML formats. It is designed for use with Claude Code, Claude Desktop, and any MCP-compatible client.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

mcp-json-tools MCP logo, by rog0xCommunity listingLocal stdioSource reviewed; not executedPublished by rog0x
Vendor documentation

What you can do with it

  • Validate JSON data against a JSON Schema
  • Compare two JSON objects to show differences
  • Transform JSON by picking, renaming, or flattening fields
  • Convert CSV text to JSON and vice versa

Source and maintenance

Community listingRegistry 1.0.1
mcp-registry: io.github.rog0x/json@1.0.1Source repository
Maintenance checked

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

@rog0x/mcp-json-tools 1.0.1

npm
@rog0x/mcp-json-tools package definition
{
  "version": "1.0.1",
  "transport": "stdio",
  "identifier": "@rog0x/mcp-json-tools",
  "registryType": "npm"
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

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Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.
Cursor configuration
{
  "mcpServers": {
    "mcp-json-tools-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@rog0x/mcp-json-tools@1.0.1"
      ]
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "mcp-json-tools-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@rog0x/mcp-json-tools@1.0.1"
      ]
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.
VS Code configuration
{
  "servers": {
    "mcp-json-tools-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@rog0x/mcp-json-tools@1.0.1"
      ]
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.
Claude Desktop configuration
{
  "mcpServers": {
    "mcp-json-tools-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@rog0x/mcp-json-tools@1.0.1"
      ]
    }
  }
}

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