Stackhal (stackhal)

MCP serverCommunication

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

Available today. Use it from your connected AI after setup.

No other account needed.

Add ahel to your AI once: Claude, ChatGPT, Cursor, Claude Code or Codex. Then ask it to use this.

Then ask your AI: use Stackhal (stackhal) to validate app links

Install Stackhal (stackhal)

The server’s own address, for the clients that take one directly. Or connect ahel once and every client you use reads it from one address, with the account kept on ahel rather than in each client’s config.

Claude Code
claude mcp add --transport http --scope user stackhal-stackhal 'https://stackhal.com/mcp'
Run it once in your project, then open /mcp to approve any sign-in the server asks for.
Claude Desktop
https://stackhal.com/mcp
Add a custom connector in Settings, paste this address, and approve the sign-in.
Cursor
cursor://anysphere.cursor-deeplink/mcp/install?name=stackhal-stackhal&config=eyJ1cmwiOiJodHRwczovL3N0YWNraGFsLmNvbS9tY3AifQ==
Open the link and Cursor adds the server at that address.
ChatGPT
https://stackhal.com/mcp
In Settings, enable Developer mode, create an MCP app, and paste this address. Your plan and workspace must allow custom apps.
Codex
codex mcp add stackhal-stackhal --url 'https://stackhal.com/mcp'
Run it once, then sign in with codex mcp login stackhal-stackhal if the server asks for an account.

From the project's README

As published by bahdanhal/stackhal in README.md.

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.

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

Tools it offers (13)

What this server listed when ahel dialed its public endpoint in Oct 2026, with no key and no account of yours. The names are the server’s own.

validate_app_links
audit_website_seo
transpile_to_caddyfile
calculate_cidr_overlap
diagnose_cors_policy
trace_dns_delegation
inspect_domain_security
generate_favicon_suite
analyze_geo_readiness
inspect_apple_pkpass
generate_apple_pkpass_spec
repair_apple_pkpass_spec
transpile_regex_engine

Advanced

Delivery: stackhal MCP server → your ahel connector (mcp.ahel.ai) → your AI.
Item type: mcp-server
Key: io-github-bahdanhal-stackhal
Source: github.com/bahdanhal/stackhal
Hosted endpoint: https://stackhal.com/mcp

github.com/bahdanhal/stackhal

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