MCP.Market

Stackhal MCP server

online · 96% uptime
by bahdanhal·io.github.bahdanhal/stackhal·v1.2.0
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Outside-in DNS, email security, SEO, GEO and app-link checks plus developer utilities.

B81/100grade B
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Safety scan
B81/100

full report

Adoption
Growing

0 stars

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Stackhal tools (13, 1 write)

write = sends, deletes, buys or posts
  • analyze_geo_readinessFree

    Analyze Generative Engine Optimization (GEO) signals and AI crawler readiness for a web page (schema, citations, provenance, answer structure, llms.txt, AI bot robots rules).

  • audit_website_seowrite actionFree

    Run a deterministic technical SEO audit for a public website URL. Checks canonicals, title tags, headings, robots.txt, sitemaps, redirects, crawl traps, and indexability.

  • calculate_cidr_overlapFree

    Analyze IPv4/IPv6 CIDR subnets for range collisions, full containment, 2D bit-tree matrix partition, and available free subnet allocation.

  • diagnose_cors_policyFree

    Analyze CORS HTTP request and response headers for wildcard/credential security violations, missing Vary: Origin, preflight OPTIONS handling, and header exposure.

  • generate_apple_pkpass_specFree

    Generate a production-ready, fully compliant Apple Wallet pass.json specification based on pass type, metadata, colors, barcode, and field values.

  • generate_favicon_suiteFree

    Generate modern multi-platform favicon bundle (adaptive dark-mode SVG, multi-resolution ICO, Apple Touch Icon, Android PWA icons, webmanifest) and minimal HTML tags from SVG or image input.

  • inspect_apple_pkpassFree

    Inspect and validate Apple Wallet .pkpass JSON structure (pass.json) or package manifests: checks required keys, pass styles, dates, ISO 8601 timezones, transit types, barcodes, and color contrast.

  • inspect_domain_securityFree

    Inspect domain email security and deliverability standards: DMARC (BIMI compliance), BIMI DNS & SVG reachability, MTA-STS (RFC 8461), SMTP TLS-RPT (RFC 8460), SPF and MX records.

  • repair_apple_pkpass_specFree

    Automatically repair and sanitize broken Apple Wallet pass.json manifests: fixes missing formatVersion, prefixes passTypeIdentifier, ensures 10-character team ID, normalizes dates to ISO 8601 with timezones, and auto-corrects low contrast.

  • trace_dns_delegationFree

    Query live DNS records and inspect the authoritative nameservers returned for a domain.

  • transpile_regex_engineFree

    Transpile and analyze regular expressions across engines (PCRE, Go RE2, JavaScript, Python re, Rust regex) with compatibility checks and ReDoS safety analysis.

  • transpile_to_caddyfileFree

    Transpile Nginx (nginx.conf, server blocks) or Apache (.htaccess, VirtualHost) web server configuration to clean, idiomatic Caddyfile with migration advisories.

  • validate_app_linksFree

    Inspect and validate Apple App Site Association (apple-app-site-association) and Android Digital Asset Links (assetlinks.json) files, HTTPS hosting rules, and test URL path routing, and compare the origin AASA with the copy on Apple's CDN.

Public scan report

scanner v0.1.10 · 2026-10-14 · same rubric, same numbers if you re-run it

1 high
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 1770ms20/20
  • Tool poisoning13 tool descriptions checked15/15
  • Auth qualityopen endpoint exposes 1 write-action tools with no auth3/15
  • Maintenancelast push 0 days ago15/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10

Findings (1)

  • highWrite-action tools reachable without authenticationauth.open-write
Overall 81/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Stackhal compares

Against every graded SEO MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
81/100
higher than 63% of 769 SEO servers
Tools
13
the typical SEO server has 6
Tools that change things
8%
typical: 0%. Fewer write tools means less an agent can break
Uptime
96%
of our recent checks; the typical remote SEO server answers 100%
Response time
804 ms
faster than 16% of 536 SEO servers

What its tools let an agent do: 10 read · 2 create · 1 change

Install Stackhal in Claude Code, Cursor or VS Code

claude mcp add --transport http stackhal https://stackhal.com/mcp
Add to Cursor

What the publisher says

From the Stackhal repository's README, as published. We do not edit it. Read it 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

Nothing above is checked by us. What we check is on the safety report.

Stackhal: common questions

Is Stackhal MCP server safe?
Mostly: it is graded B (81/100). Read the Stackhal safety report
How do I install Stackhal?
It runs remotely at stackhal.com. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Stackhal need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Stackhal maintained?
The last commit was 21 days ago (2026-10-14). The latest release is v1.2.0.
Is Stackhal up?
96% of our last 28 checks got an answer. We check remote servers about four times a day.
What can I use instead of Stackhal?
Servers from other publishers that do the same job: Tengence GEO Agent MCP server, Contentgate MCP server and Google Ads + Meta Ads + SEO/GEO MCP server.
How does Stackhal compare with other SEO MCP servers?
safety score 81/100 (higher than 63% of 769 SEO servers); tools 13 (the typical SEO server has 6); tools that change things 8% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.

Alternatives to Stackhal

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