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RunStack Checks

Registre officiel Recherche et web

External checks of TLS, HTTP headers, email domain, DNS and ports, with cause and fix

Code source Site web Documentation

Installation

Ajoutez ceci à la configuration MCP de votre client (Claude Desktop : claude_desktop_config.json ; Cursor : .cursor/mcp.json ; VS Code et les autres utilisent la même forme « mcpServers »).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http runstack-checks 'https://runstack.pro/api/mcp' --header 'X-RunStack-Key: <Free API key from https://runstack.pro/account (rsk_...)>'
Configuration JSON (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "runstack-checks": {
            "type": "http",
            "url": "https://runstack.pro/api/mcp",
            "headers": {
                "X-RunStack-Key": "<Free API key from https://runstack.pro/account (rsk_...)>"
            }
        }
    }
}

Documentation

Tirée du README du projet sur GitHub, actualisée chaque semaine. Les liens ouvrent GitHub.

Sommaire
  1. RunStack MCP — external infrastructure checks for AI agents
  2. Tools
  3. Example (abridged, real output)
  4. Setup
  5. Language
  6. Links

RunStack MCP — external infrastructure checks for AI agents

Remote MCP server that checks your public infrastructure from the outside — the way users, browsers and other mail servers see it — and returns a diagnosis: verdict, findings with cause and fix, and a shareable report link.

Nothing runs locally and nothing runs on your servers: only public data is checked.

  • Endpoint: https://runstack.pro/api/mcp (Streamable HTTP, stateless)
  • Auth: header X-RunStack-Key: rsk_... (or Authorization: Bearer rsk_...)
  • Free key: https://runstack.pro/account — 200 calls/day
  • Registry name: pro.runstack/checks

Tools

ToolWhat it checks
check_tlsCertificate validity and chain, expiry, hostname, TLS 1.0–1.3, ciphers, HSTS
check_httpStatus, redirect chain, security headers (HSTS, CSP, X-Frame-Options…), caching, compression
check_email_domainMX, SPF (10-lookup limit), DKIM, DMARC, PTR/FCrDNS, STARTTLS, MTA-STS, TLS-RPT, BIMI
check_dnsAnswers from several public resolvers compared — propagation, NXDOMAIN, inconsistencies
check_portTCP ports open / closed / filtered from the internet
check_ipIP or ASN owner, prefix, PTR, RPKI, geolocation

All tools are read-only.

Example (abridged, real output)

"Check the mail setup of runstack.ru"

FAIL: Mail domain runstack.ru: critical issues
- MX: 10 mxs1.reg.ru, 20 mxs2.reg.ru
- SPF: ~all · lookups 4/10
- DMARC: p=none
- DKIM: dkim

Findings:
- [error] Multiple DMARC records
  why: _dmarc.runstack.ru has 2 v=DMARC1 records — receivers then ignore DMARC entirely. Keep one.
  how-to: https://runstack.ru/docs/fix-dmarc-p-none
- [info] SPF ~all (softfail)
  why: Soft fail — common during monitoring.
- [info] MX certificate not valid for the server name
  why: STARTTLS works, but the MX certificate doesn't match the name. Matters for MTA-STS and DANE.

Yes, that is our own domain — the check found it.

Setup

Claude Code
claude mcp add --transport http runstack https://runstack.pro/api/mcp --header "X-RunStack-Key: rsk_..."
Cursor (~/.cursor/mcp.json) / VS Code / other clients
{
  "mcpServers": {
    "runstack": {
      "url": "https://runstack.pro/api/mcp",
      "headers": { "X-RunStack-Key": "rsk_..." }
    }
  }
}
Codex (~/.codex/config.toml)
[mcp_servers.runstack]
url = "https://runstack.pro/api/mcp"
http_headers = { "X-RunStack-Key" = "rsk_..." }

Language

Diagnoses are in English on runstack.pro. Russian: https://runstack.ru/api/mcp or ?lang=ru.

Questions fréquentes

Qu'est-ce que RunStack Checks ?

External checks of TLS, HTTP headers, email domain, DNS and ports, with cause and fix

Comment installer RunStack Checks ?

Il fonctionne comme serveur distant. Dans Claude Code : claude mcp add --transport http runstack-checks 'https://runstack.pro/api/mcp' --header 'X-RunStack-Key: <Free API key from https://runstack.pro/account (rsk_...)>'. Pour les autres clients, collez la configuration JSON de cette page dans leurs réglages MCP.

Faut-il une clé API pour RunStack Checks ?

Oui. Il attend X-RunStack-Key, à renseigner dans sa configuration.

RunStack Checks est-il open source ?

Son code est public sur GitHub, mais le dépôt ne déclare pas de licence standard.

Qui maintient RunStack Checks ?

Il est publié par WithoutCowards. AI.tn le référence sans le maintenir ni le recommander.

Issu du registre MCP officiel. Être listé n'est pas une recommandation : vérifiez le code et les permissions d'un serveur avant de lui donner accès à vos données.