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io.github.rog0x/json

Registre officiel Données et bases de données

JSON/YAML/CSV validate, diff, transform for AI agents

Code source Documentation

Installation

Ajoutez ceci à la configuration MCP de votre client (Claude Desktop : claude_desktop_config.json ; Cursor : .cursor/mcp.json ; VS Code et les autres utilisent la même forme « mcpServers »).

NPM package @rog0x/mcp-json-tools
Claude Code 
claude mcp add json -- npx -y @rog0x/mcp-json-tools@1.0.1
Configuration JSON (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "json": {
            "command": "npx",
            "args": [
                "-y",
                "@rog0x/mcp-json-tools@1.0.1"
            ]
        }
    }
}

Documentation

Tirée du README du projet sur GitHub, actualisée chaque semaine. Les liens ouvrent GitHub.

Sommaire
  1. mcp-json-tools
  2. Tools
  3. Installation
  4. Usage with Claude Code
  5. Usage with Claude Desktop
  6. Tool Details
  7. License

mcp-json-tools

An MCP (Model Context Protocol) server that provides JSON and data manipulation tools for AI agents. Designed for use with Claude Code, Claude Desktop, and any MCP-compatible client.

Tools

ToolDescription
json_validateValidate JSON data against a JSON Schema, returning detailed errors with paths
json_diffCompare two JSON objects, showing additions, removals, and changes with paths
json_transformTransform JSON with pick, rename, flatten, and unflatten operations
csv_to_jsonConvert CSV text to a JSON array with configurable headers, delimiters, and type casting
json_to_csvConvert a JSON array of objects to CSV text
yaml_to_jsonConvert YAML text to JSON
json_to_yamlConvert JSON text to YAML

Installation

npm install
npm run build

Usage with Claude Code

claude mcp add json-tools -- node D:/products/mcp-servers/mcp-json-tools/dist/index.js

Usage with Claude Desktop

Add the following to your Claude Desktop configuration file:

Windows: %APPDATA%\Claude\claude_desktop_config.json macOS: ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "json-tools": {
      "command": "node",
      "args": ["D:/products/mcp-servers/mcp-json-tools/dist/index.js"]
    }
  }
}

Tool Details

json_validate

Validate JSON data against a JSON Schema. Returns a valid boolean and an array of errors, each with the field path, message, and schema keyword that failed.

Parameters:

  • data (string) — JSON data to validate
  • schema (string) — JSON Schema to validate against
json_diff

Compare two JSON objects and produce a structured diff. Each difference includes the dot-notation path, the type of change (added, removed, or changed), and the old/new values.

Parameters:

  • original (string) — Original JSON object
  • modified (string) — Modified JSON object
json_transform

Apply transformations to JSON data. Supports four operations:

  • pick — Extract specific fields by dot-notation paths
  • rename — Rename top-level keys using a mapping object
  • flatten — Flatten nested objects into dot-separated keys
  • unflatten — Restore dot-separated keys into nested objects

Parameters:

  • data (string) — JSON data to transform
  • operation (string) — One of: pick, rename, flatten, unflatten
  • fields (string[]) — For pick: field paths to extract
  • mapping (object) — For rename: old-to-new key mapping
  • separator (string) — For flatten/unflatten: separator character (default: ".")
csv_to_json

Parse CSV text into a JSON array of objects.

Parameters:

  • csv (string) — CSV text to convert
  • hasHeaders (boolean) — Whether the first row is headers (default: true)
  • delimiter (string) — Column delimiter (default: ",")
  • castTypes (boolean) — Auto-cast numbers and booleans (default: false)
json_to_csv

Convert a JSON array of objects to CSV text. Headers are derived from the union of all object keys.

Parameters:

  • data (string) — JSON array to convert
  • delimiter (string) — Column delimiter (default: ",")
  • includeHeaders (boolean) — Include header row (default: true)
yaml_to_json / json_to_yaml

Convert between YAML and JSON formats.

Parameters:

  • yamlText / jsonText (string) — Text to convert
  • indent (number) — Indentation spaces (default: 2)

License

MIT

Questions fréquentes

Qu'est-ce que io.github.rog0x/json ?

JSON/YAML/CSV validate, diff, transform for AI agents

Comment installer io.github.rog0x/json ?

Il s'exécute sur votre machine. Dans Claude Code : claude mcp add json -- npx -y @rog0x/mcp-json-tools@1.0.1. Pour les autres clients, collez la configuration JSON de cette page dans leurs réglages MCP.

Faut-il une clé API pour io.github.rog0x/json ?

Son entrée au registre n'indique aucune clé ni secret obligatoire. Certaines fonctions peuvent tout de même demander un compte auprès du service auquel il se connecte.

io.github.rog0x/json est-il open source ?

Oui. Son code est sur GitHub sous licence MIT.

Qui maintient io.github.rog0x/json ?

Il est publié par rog0x. AI.tn le référence sans le maintenir ni le recommander.

Issu du registre MCP officiel. Être listé n'est pas une recommandation : vérifiez le code et les permissions d'un serveur avant de lui donner accès à vos données.