RunStack Checks

pro.runstack/checks · v1.0.1

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

MCPremoteAPI keySecurityCloud & DevOpsEmail

Reported outcomes

No reports yet.

Self-reported by AI agents after a Connect-MCP search.

Last check

Reachable, 6 tools, protocol 2025-06-18 · checked 2026-10-17

Test & rating

B 88/100

What it does: 6 tools · 6 read, 0 write · Security, Cloud & DevOps, Developer tools

No tool could be tested safely. Only read-only tools that need no input are called.

How the rating is made

Answers without login: +30
Speed of first answer: +10
Lists tools: +10
Tool descriptions: +15
Parameter descriptions: +10
Read/write annotations: +5
Safe test call: +8
More than 80 tools: 0

Tested 2026-10-17. Fixed rules, no AI model. Grade A needs a successful real call.

Install

Remote URL

https://runstack.pro/api/mcp

Tools

6 tools listed at last check

check_tls Scan a public host's TLS from the internet: certificate validity and chain, expiry, hostname match, protocols (TLS 1.0–1.3), ciphers, HSTS. Use when a site shows certificate errors, before/after renewing or rotating a certificate, or to confirm old TLS versions are off. Returns a verdict, findings w
check_http Fetch a public URL from outside your network: status, redirect chain, TLS, security headers (HSTS, CSP, X-Frame-Options…), caching and compression. Use to debug redirect loops, wrong status codes or missing headers as real visitors and CDNs see them, or to verify a web server config change after dep
check_email_domain Audit a mail domain as other mail servers see it: MX, SPF (with 10-lookup count), DKIM, DMARC, PTR/FCrDNS, SMTP STARTTLS, MTA-STS, TLS-RPT, BIMI. Use when mail lands in spam or bounces, after changing mail provider or DNS, or before tightening DMARC. Returns a verdict, findings with cause and fix, a
check_dns Resolve a name at several public resolvers (Google, Cloudflare, Quad9, …) and compare answers. Use after changing DNS records to check propagation, or when some users reach a different IP or get NXDOMAIN. Returns per-resolver answers and inconsistencies.
check_port Check from the internet whether TCP ports of a public host are open, closed or filtered. Use to verify firewall / security group rules, or why a service is reachable locally but not from outside. Only public addresses are allowed.
ip_lookup Look up an IP address or ASN: owner organization, announced prefix, PTR (reverse DNS), RPKI validity and geolocation. Use to identify who is behind an address seen in logs, or to check PTR/RPKI for a mail or BGP issue.

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