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io.github.rog0x/schema

Official registry Developer tools

JSON Schema, TypeScript types, mocks for AI agents

Source code Documentation

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

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

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. mcp-schema-tools
  2. Tools
  3. Setup
  4. Usage with Claude Desktop
  5. License

mcp-schema-tools

MCP server providing schema validation and generation tools for AI agents.

Tools

generate_json_schema

Generate a JSON Schema from sample JSON data. Infers types, required fields, formats (email, date, URI, UUID), and detects enum patterns from multiple examples.

generate_typescript

Generate TypeScript interfaces and types from JSON data or a JSON Schema. Handles nested objects, arrays, optional fields, enums, and union types.

validate_schema

Validate data against a JSON Schema with detailed error messages including JSON path, expected type, actual value, and the violated constraint keyword.

mock_from_schema

Generate realistic mock data from a JSON Schema. Smart field-name detection produces contextual values: email fields get valid emails, name fields get realistic names, phone fields get formatted numbers, etc.

diff_schemas

Compare two JSON Schemas to find added, removed, and changed fields. Identifies type changes, constraint changes, and classifies each difference as breaking or non-breaking for backwards compatibility analysis.

Setup

npm install
npm run build

Usage with Claude Desktop

Add to your claude_desktop_config.json:

{
  "mcpServers": {
    "schema-tools": {
      "command": "node",
      "args": ["path/to/mcp-schema-tools/dist/index.js"]
    }
  }
}

License

MIT

Frequently asked questions

What is io.github.rog0x/schema?

JSON Schema, TypeScript types, mocks for AI agents

How do I install io.github.rog0x/schema?

It runs on your machine. In Claude Code: claude mcp add schema -- npx -y @rog0x/mcp-schema-tools@1.0.1. For other clients, paste the JSON configuration from this page into their MCP settings.

Does io.github.rog0x/schema need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Is io.github.rog0x/schema open source?

Its code is public on GitHub, but the repository does not declare a standard license.

Who maintains io.github.rog0x/schema?

It is published by rog0x. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.