ipv4.fr Network Tools
DNS, WHOIS, SSL, IP geolocation, email validation, DNSBL blacklist, HTTP headers, subnet calc.
| Endpoint | https://ipv4.fr/mcp (streamable-http) |
|---|---|
| Registry version | 1.0.0 |
| Now | 9 tools · grade A (94) · pin ts_935110d14e47b440becb355c939837e5 · protocol 2025-06-18 |
| First / last listed | 2026-11-02 03:32 UTC / 2026-11-02 03:32 UTC |
| Grade over time | 2026-11-02: A (94), 9 tools |
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Tools: dns_lookup whois ssl_check ip_geolocation email_validate ip_blacklist http_headers subnet_calc domain_audit
dns_lookup | DNS records for a domain (A, AAAA, MX, TXT, NS by default; also CNAME, SOA). params: domain*, types |
whois | WHOIS registration data for a domain: registrar, creation and expiry dates, name servers. params: domain* |
ssl_check | TLS certificate of a host: validity, issuer, expiry, days remaining, SAN. params: host*, port |
ip_geolocation | Geolocation of an IP address: country, city, ISP, coordinates, timezone. params: ip* |
email_validate | Validate an email address: syntax, MX records, SMTP check, disposable and role-based detection. params: email* |
ip_blacklist | Check an IPv4 address against 3 DNS blacklists (Barracuda, SpamCop, UCEPROTECT). params: ip* |
http_headers | HTTP response headers and status of a public URL (HEAD request, redirects followed and checked). params: url* |
subnet_calc | IPv4 subnet calculator from CIDR: network, broadcast, netmask, wildcard, host range, host count. params: cidr* |
domain_audit | AI security audit of a domain: DNS, SPF, DMARC, TLS, HTTP security headers, WHOIS expiry and IP blacklists, returned as a 0-100 score, findings by severity and exact fixes. Requires a paid ipv4.fr API key (X-Api-Key header); uses 10 requests of the daily limit. Without a key, pay per call with x402 (0.05 USDC on Base). params: domain* |
Entries describe changes in tool definitions. They are not statements about a server, its quality or its author. The grade measures how the tool definitions fit model providers (token cost, schema compatibility, confusable names) as scored by the ToolFit engine at the time of the listing. JSON: append .json. Opt-out: how or hello@youraitools.co.