"Free PostgreSQL Database Solutions" matching MCP connectors:
Matching Connector Tools:
Scan/purge hidden text & score web domains: TLS, DNS, headers, speed. Free scans, $0.01 actions.
Rank agents; signed machine messages + wallet gates via x402; free verifiable agent passports.
Is a wallet frozen by Tether/Circle? Free freeze checks + full history, screening & KYT. 9 chains.
Cited EU & global law, regulations & security frameworks via Ansvar Gateway. OAuth, free + paid.
Issue signed receipts for AI agent actions; verify any receipt offline - free, no account.
Free lockfile malware check plus paid pre-install scan of any skill, tool, or package.
Free, no-account verification of KeyHalve-sealed documents. Read-only; never receives keys.
Keyless email checks: disposable, role, and free-provider detection, MX, and typo suggestions.
Keep AI answers fresh with free source previews, scheduled monitoring, evidence history, and alerts.
Free MCP context preflight with local redaction and a paid HTTP upgrade.
Verifiable physical randomness from cosmic-ray detections. Free beacon, paid signed decisions.
Free SPF, DKIM, DMARC, MX deliverability check with graded shareable reports, plus referral terms
Free no-key IP intelligence: geolocation, VPN detection, DNS, WHOIS, blacklists, breach checks
Verify a photo's capture time and provenance: C2PA validation, EXIF/XMP, and pixel forensics. Free keyless use; one clear verdict per image. C2PA Conformant Validator, listed on the C2PA Conforming Products List.
GreyNoise Community MCP — internet scanner classification (free tier with key)
MalwareBazaar MCP — abuse.ch malware sample database (free, key required)
URLhaus MCP — wraps abuse.ch URLhaus malware URL database (free, no auth)
ThreatFox MCP — abuse.ch indicator-of-compromise feed (free, key required)
Ed25519-signed verdicts resolved against real ground truth. Free claim/verify; paid bonded dispute.