"PostgreSQL MCP (Multi-Version Concurrency Control or specific usage)" matching MCP connectors:

Scan a site or AI-built app for exposed databases, keys and MCP endpoints, then verify the fixes.

Argues against a security finding or a draft bug bounty report before you submit it.

Detect malicious or vulnerable npm packages: registry search, OSV.dev and GitHub advisory lookups

MDN HTTP Observatory — grade any website's HTTP security headers and get the specific fixes, from…

Subdomain APIA

app.subdomain

Find known subdomains of a domain. Passive data; may include historic entries. List or count.

Check if an MCP server tool changed or hides injection patterns before you trust it.

Port Scanner APIA

com.portscan

Scan the open TCP ports of your own public IP. Fast (32) or deep (65535). No key, no signup.

ACAO star-or-origin, value discarded

Patronus SecurityAOAuth

studio.patronus

Scan text, documents, websites, and MCP metadata for prompt injection and sensitive-data risks.

Scan any website or MCP server for agent-trust-readiness; returns a signed, verifiable scorecard.

URL Scanner Online by Aprensec — URL & Domain Security ScannerA

online.urlscanner.mcp

Scan any URL, domain, or IP address for security threats using URLScanner.online. Returns a full security report including: Threat verdict (safe / suspicious / malicious) and 0–100 security score Threat intelligence across 70+ feeds (malware, phishing, blocklists) SSL certificate validity, expiry, issuer, and OCSP status HTTP security headers audit (missing / misconfigured) DNS records (A, AAAA, MX, TXT, NS, SOA) And More! Free to use. No account required. 10 scans/day

secret-scannerA

tools.knurl

Scan configs, files, or text for leaked secrets and obvious misconfigurations. Nothing stored.

Check npm, PyPI, Go and Maven packages or lockfiles against OSV.dev: CVEs, CVSS, fixed versions.

Security reviews, threat models over a repo or website, and remediation tracking, in your editor.

Audit MCP servers for tool poisoning and shadowing. Scan a remote server by URL or paste its tools.

Programmatic control of the Hiro security platform: scans, tasks, plans, and approvals.

Browser QA agent that won't return a false green: verified PASS/FAIL + access-control probing.

A paid remote MCP for developer endpoint scanner MCP, built to return verdicts, receipts, usage logs