"Using Claude to Check the Current Weather Without an API Key" 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.
Check dependencies for known CVEs with EPSS and CISA KEV context. Read-only; free API token.
Triage a CVE: how severe it is, whether it is exploited, and how likely exploitation is.
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.
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.
Test your AI agents for security and safety weaknesses, and re-verify the fixes.
Authorized security scans, evidence, fix prompts and retests for AI-built web apps.
Security scans for AI-built web apps, starting with Lovable. Verify ownership, run authorized scans, inspect findings, get AI-ready fix prompts and request retests. Uses OAuth with a Guarita account. Fix prompt access follows the account plan.
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.
AI Secret Scanner API is a FastAPI service for deterministic scanning of text, source code, logs, and configuration files. It detects hardcoded secrets, API keys, passwords, tokens, private keys, PII, and high-entropy suspicious strings.
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).
Passive domain-perimeter checks — cert expiry, subdomain takeover, lookalikes — as agent tools
Supply chain security: free npm lockfile malware check, paid scan of packages, skills, MCP servers.
Argues against a security finding or a draft bug bounty report before you submit it.
Agent security pre-checks: prompt-injection scan, MCP tool-poisoning scan, x402 endpoint check.
Free HTTPS and security header check from Corrie, uptime monitoring for small teams. No auth.
MDN HTTP Observatory — grade any website's HTTP security headers and get the specific fixes, from…
Security tools for coding agents, with dependency advisory audits and structured remediation evidence. Free advisory intelligence is available; optional hosted security tools require an Offense API key and prepaid credit.
PCI ASV scan prices, SAQ check, free payment page check, PCI guides and scan-failure fixes.
Free passive outside security scan of a live web app: leaked keys, exposed files, open Supabase
PII/secret redaction, email checks, sanctions screening, OSV lookups and an MCP server pre-check.
Scans an MCP server for security gaps before your agent connects. Free tier, no signup.
55 tools, 7 Resources, Sigma rules, email SPF/DMARC, MITRE, CVE/KEV, risk_score. No key.
Scan text, web pages and MCP tool definitions for prompt injection before your agent reads them. Risk score, verdict, exact spans. Free MCP tool; paid calls use x402 USDC on Base. Built by Crypto Money Maker. https://youraitools.co/guides
Audit any live URL: 85 SEO, AI-search, security, leaked-key and speed checks, with fixes to verify.
