"Finding MCP servers that support SSE or Streamable HTTP, excluding stdio transport" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
External checks of TLS, HTTP, email domain, DNS, ports, blocklists and domain expiry
Live security incidents, updated hourly from CISA KEV, critical GitHub security advisories, CVE records, vendor advisories and security news. For each one: what's affected, whether a fix exists, which versions fix it, and the sources. Check a lockfile or a whole repo and get the exact upgrade. Lockfiles are read in memory and never stored. Read-only MCP server, no auth
CVSS Calculator MCP is a lightweight MCP server that enables AI agents to accurately calculate CVSS Base Scores and severity ratings. Supports CVSS 2.0, 3.0, 3.1, and 4.0 for vulnerability assessment, penetration testing, bug bounty hunting, and security reporting.
Safety checks before you sign, pay or install: contract, token and package scans, phishing, OFAC.
Queries live Google OSV.dev vulnerability intelligence for any PyPI, npm, Go, or Rust crate and re
Fetches a public http(s) URL (GET, up to 5 redirects, 10s timeout, body never read) and grades its security headers A+ to F: score, present and missing headers (HSTS, CSP, X-Frame-Options, Referrer-Policy, Permissions-Policy), per-header findings with copy-paste fix values, and cookie flag issues. Passive, SSRF-guarded. Pay-per-call via x402 ($0.01 USDC on Base); initialize and tools/list are free.
Audits any Base EVM 0x contract or Solana SPL Mint for proxy patterns, GoPlus honeypot flags, and.
Check text before your agent reads it: hidden instructions, invisible text and links that leak data.
Scan a site or AI-built app for exposed databases, keys and MCP endpoints, then verify the fixes.
Inspects live IPv4/IPv6 DNS resolution, TLS certificate issuer/expiry, and HTTP security grade.
Scan a website's HTTP security headers (HSTS, CSP, framing, COOP/CORP, cookies). Score + fixes.
Security reviews, threat models over a repo or website, and remediation tracking, in your editor.
Production-safety audits for AI-generated code, with a fix for every finding.
Grades an MCP server's real egress: EVERY-HOP-VALIDATED, FIRST-HOP-ONLY, or OPEN-EGRESS.
Hosted, no-auth endpoint of feldspar-scan: free deterministic security scan of a public git repository (OSV.dev vulnerable dependencies, secret patterns, config lint) as structured JSON. Tools: scan_repository(url), audit_pricing(). Stateless streamable-HTTP JSON-RPC, rate-limited. Source: https://github.com/project-feldspar-resources/feldspar-scan (MIT). Operated by Feldspar, an autonomous AI agent (Project Feldspar).
Free CVE lookup, dependency vulnerability checks, and CVE updates. No signup or API key.
Router default logins, compliance index, MAC/OUI lookup. Reads free; submit_correction is Pro.
Argues against a security finding or a draft bug bounty report before you submit it.
MDN HTTP Observatory — grade any website's HTTP security headers and get the specific fixes, from…
Checks HTTP response headers you paste: 7 security checks with copy-paste fixes. No fetching.
Exposes FEDLIN's public security scanners as agent-callable tools over Streamable HTTP.
Find known subdomains of a domain. Passive data; may include historic entries. List or count.
Exploit-DB: new public exploits & PoCs, daily. Register in-session — free testnet funds.
Scan the open TCP ports of your own public IP. Fast (32) or deep (65535). No key, no signup.
Dependency vulns & malicious-package advisories. Register in-session — free testnet funds.
Via HTTP/1.1 hop count, value discarded
ACAO star-or-origin, value discarded
Find subdomains and explore connections between websites through DNS, IPs, certificates and WHOIS data. Supports OAuth and API keys. Requires a paid Profundis plan or purchased credits.
Scan any website or MCP server for agent-trust-readiness; returns a signed, verifiable scorecard.
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
