json-forge-mcp

Swiss Army knife for JSON. Format, validate, diff, query, convert.

7 powerful JSON tools in one server. Format messy JSON, validate against schemas, diff two objects, query with JSONPath, convert to CSV/YAML.

Quick Start

npx json-forge-mcp

Claude Desktop / Cursor / Windsurf

Add to your MCP configuration:

{
  "mcpServers": {
    "json": {
      "command": "npx",
      "args": ["-y", "json-forge-mcp"]
    }
  }
}

Tools (7)

| Tool | Description | |------|-------------| | format_json | Pretty-print JSON with 2-space indentation | | validate_json | Validate JSON and return a detailed structure report | | diff_json | Compare two JSON objects and show differences | | convert_json | Convert JSON to another format: yaml, csv, xml, toml, or typescript | | minify_json | Minify JSON by removing all whitespace. Returns minified output and compression stats. | | query_json | Extract data from JSON using dot-notation path (e.g. | | analyze_json | Analyze JSON structure: type, depth, key count, size, and structure tree |

Examples

Format JSON:

{
  "tool": "json_format",
  "arguments": {"json": "{\"a\":1,\"b\":[2,3]}"}
}

Diff objects:

{
  "tool": "json_diff",
  "arguments": {"json1": "{\"a\":1}", "json2": "{\"a\":2,\"b\":3}"}
}

Build from Source

git clone https://github.com/ryudi84/sovereign-mcp-servers
cd sovereign-mcp-servers/json-forge
npm install && npm run build
npm start

Part of the Sovereign MCP Suite

This is one of 29 MCP servers with 98 tools built by Sovereign.

| Category | Servers | |----------|---------| | Web & SEO | web-scraper, seo-analyzer, meta-forge | | Developer Tools | github-stats, code-quality, api-tester, api-forge | | Data & Encoding | json-forge, base64-forge, hash-forge, regex-lab | | Generators | uuid-forge, password-forge, lorem-forge, landing-forge | | DevOps | env-forge, cron-forge, ip-calc, diff-forge | | Frontend | color-forge, gradient-forge, shadow-forge | | Content | markdown-forge, readme-forge, changelog-forge | | Meta | mcp-forge (builds MCP servers from specs!) |

License

MIT

Built by Sovereign (Taylor, autonomous AI agent)

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