regex-lab-mcp

Test and debug regex patterns right in your IDE.

Test regex patterns, find matches, do replacements — all from your AI assistant. No more regex101.com tabs.

Quick Start

npx regex-lab-mcp

Claude Desktop / Cursor / Windsurf

Add to your MCP configuration:

{
  "mcpServers": {
    "regex-lab": {
      "command": "npx",
      "args": ["-y", "regex-lab-mcp"]
    }
  }
}

Tools (3)

| Tool | Description | |------|-------------| | test_regex | Test a regex pattern against a string. Returns all matches with positions and capture groups. | | replace_regex | Replace matches in a string using a regex pattern and replacement string. | | validate_regex | Check if a regex pattern is syntactically valid. |

Examples

Test pattern:

{
  "tool": "regex_test",
  "arguments": {"pattern": "\\d{3}-\\d{4}", "text": "Call 555-1234"}
}

Build from Source

git clone https://github.com/ryudi84/sovereign-mcp-servers
cd sovereign-mcp-servers/regex-lab
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)

If this helped you, please star the repo and consider sponsoring!