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Stackhal

Official registry Search and web

Outside-in DNS, email security, SEO, GEO and app-link checks plus developer utilities.

Source code Website Documentation

What can you do with Stackhal?

  • /caddy-transpiler: Real-time Nginx server blocks and Apache .htaccess to modern Caddyfile converter.
  • /apple-pkpass-inspector: Apple Wallet (.pkpass) archive parser, SHA-1 manifest integrity checker, PKCS#7 certificate inspector, and Google Wallet converter.
  • /cidr-subnet-matrix: Visual IPv4/IPv6 CIDR overlap calculator, collision detector, and 2D binary tree matrix.
  • /regex-transpiler: Regex dialect transpiler across PCRE, Go RE2, JavaScript, Python and Rust with linear ReDoS protection.
  • /favicon-suite: Modern favicon kitchen, dark-mode SVG generator, multi-resolution ICO, Apple Touch Icon, and PWA manifest suite.
  • /dns-dag-tracer: Visual hierarchical DNS delegation chain tracer (Root -> TLD -> Authoritative -> Edge Anycast) with DNSSEC validation.
  • /seo-audit: Technical SEO crawler, canonical auditor, redirect loop detector, and crawl trap identifier with SSRF protection.
  • /geo-audit: Generative Engine Optimization (GEO) readiness analyzer (13 deterministic criteria for AI search engines like Perplexity, ChatGPT, Gemini).

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).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http stackhal 'https://stackhal.com/mcp'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "stackhal": {
            "type": "http",
            "url": "https://stackhal.com/mcp"
        }
    }
}

Documentation

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

Stackhal (stackhal)

Live website: Stackhal - free online developer, DevOps, and infrastructure tools

Fast, privacy-focused tools for developers, infrastructure engineers, and technical SEO work, with no tracking or account required.

Related projects: Bahdan Hal - software engineering consulting · IleZa.pl - editorial fair prices for any product category

Shared Packagist packages: bahdan/symfony-safe-http-client · bahdan/symfony-privacy-analytics-bundle · bahdan/lead-capture-bundle

1. Included Tools & Canonical Routes

  • /caddy-transpiler: Real-time Nginx server blocks and Apache .htaccess to modern Caddyfile converter.
  • /apple-pkpass-inspector: Apple Wallet (.pkpass) archive parser, SHA-1 manifest integrity checker, PKCS#7 certificate inspector, and Google Wallet converter.
  • /cidr-subnet-matrix: Visual IPv4/IPv6 CIDR overlap calculator, collision detector, and 2D binary tree matrix.
  • /regex-transpiler: Regex dialect transpiler across PCRE, Go RE2, JavaScript, Python and Rust with linear ReDoS protection.
  • /favicon-suite: Modern favicon kitchen, dark-mode SVG generator, multi-resolution ICO, Apple Touch Icon, and PWA manifest suite.
  • /dns-dag-tracer: Visual hierarchical DNS delegation chain tracer (Root -> TLD -> Authoritative -> Edge Anycast) with DNSSEC validation.
  • /seo-audit: Technical SEO crawler, canonical auditor, redirect loop detector, and crawl trap identifier with SSRF protection.
  • /geo-audit: Generative Engine Optimization (GEO) readiness analyzer (13 deterministic criteria for AI search engines like Perplexity, ChatGPT, Gemini).
  • /domain-inspector: Domain email security analyzer for DMARC, BIMI, MTA-STS, TLS-RPT, SPF, and MX records.
  • /bimi-studio: BIMI SVG Tiny 1.2 PS studio, sanitizer, and live avatar mailbox preview (Gmail, Apple Mail, Yahoo).
  • POST /mcp: High-performance Model Context Protocol endpoint exposing all tool operations to AI agents.

2. Verification

docker build --target test -t bahdan-landing-test .
docker run --rm --env-file .env.example -e APP_ENV=test bahdan-landing-test vendor/bin/phpunit --fail-on-phpunit-notice
docker run --rm -v "$PWD:/app" -w /app node:24-alpine sh -lc 'for test in tests/js/*.test.js; do node "$test" || exit 1; done'
docker run --rm bahdan-landing-test vendor/bin/phpstan analyse --no-progress --memory-limit=512M
docker run --rm bahdan-landing-test vendor/bin/phpcs

Frequently asked questions

What is Stackhal?

Outside-in DNS, email security, SEO, GEO and app-link checks plus developer utilities.

How do I install Stackhal?

It runs as a remote server. In Claude Code: claude mcp add --transport http stackhal 'https://stackhal.com/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does Stackhal 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 Stackhal open source?

Yes. Its code is on GitHub under the MIT license.

Who maintains Stackhal?

It is published by bahdanhal. 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.