ipv4.fr network tools

active

Fast, reliable network tools API. 13 endpoints: IP lookup, DNS records, SSL certificates, port scanning, email validation, WHOIS, IP geolocation, blacklist check, subnet calculator, AI domain security audit, web page to Markdown, company profile enrichment, PDF to Markdown. Free tier: 25 req/day. Pro: 10,000 req/day. Crypto payments (BTC, ETH, USDC). Pay-per-call without an account: the /x402/v1…

AIBasex402 v2exactipv4.fr ↗︎

Settled via PayAI.

Transactions · 30d
10
Volume · 30d
$0.058
Unique buyers · 30d
3
Uptime · 30d
100.0%
Latency p50
285ms

Endpoints (22 live)

  • GET /x402/v1/email/:email — Email address validation: syntax, MX, SMTP mailbox check, disposable and role detection. (0.005 USDC on Base)
  • GET /x402/v1/markdown — Fetch a public web page and return its main content as clean Markdown (Readability extraction, tables kept, no ads or navigation), plus title, language and metadata. Add summary=1 for an AI summary and key points ($0.01 instead of $0.005). Cached 1h per URL. (0.005 USDC on Base)
  • GET /x402/v1/headers — HTTP response headers of a public URL (HEAD request, redirects reported, not followed). (0.003 USDC on Base)
  • GET /x402/v1/whois/:domain — WHOIS registration data for a domain: registrar, dates, name servers. (0.003 USDC on Base)
  • GET /x402/v1/ssl/:host — TLS certificate of a public host on port 443: validity, issuer, expiry, SAN. (0.003 USDC on Base)
  • GET /x402/v1/dns/:domain — DNS records (A, AAAA, MX, TXT, NS by default) for a domain. (0.002 USDC on Base)
  • GET /x402/v1/audit/:domain — AI security audit of a domain: runs DNS, SPF, DMARC, TLS, HTTP security headers, WHOIS expiry and IP blacklist checks, then returns a 0-100 score, findings by severity and exact fixes (DNS records and header lines to add). Reports are cached 24h. (0.05 USDC on Base)
  • GET /x402/v1/company/:domain — Company profile from a domain for lead enrichment: name, one-line description, industry, business model, products, HQ country and city, founded year, size hint (AI-extracted from the site's own home, about and contact pages), plus contact and about page URLs, public role emails, social profiles, email provider, DNS provider, verified SaaS services and web tech read directly from the site and DNS. Organization data only. Cached 7 days. (0.02 USDC on Base)
  • GET /x402/v1/pdf-markdown — Convert a public PDF (up to 20 pages, 20 MB) to clean Markdown: text is extracted from the PDF, then AI rebuilds headings, paragraphs, lists and tables while keeping the original wording. Text-based PDFs only (no OCR). Longer PDFs are refused before payment. Cached 24h per URL. (0.03 USDC on Base)
  • GET /x402/v1/blacklist/:ip — Check an IPv4 address against 3 DNS blacklists (Barracuda, SpamCop, UCEPROTECT). (0.003 USDC on Base)
  • GET /x402/v1/asn/:asn — Holder, country and registry of an autonomous system (AS number), with the prefixes it announces. (0.005 USDC on Base)
  • GET /x402/v1/geo/:ip — IP geolocation: country, city, ISP, coordinates, timezone. (0.002 USDC on Base)
  • GET /x402/v1/mail-auth/:domain — Email authentication check for a domain: SPF, DMARC policy and common DKIM selectors, with findings and a verdict. (0.003 USDC on Base)
  • GET /x402/v1/ip-asn/:ip — Which autonomous system (AS) announces an IPv4 address, with the covering prefix, the AS holder and its country. (0.002 USDC on Base)
  • GET /x402/v1/blacklist/1 — Check an IPv4 address against 3 DNS blacklists (Barracuda, SpamCop, UCEPROTECT). (0.003 USDC on Base)
  • GET /x402/v1/dns/1 — DNS records (A, AAAA, MX, TXT, NS by default) for a domain. (0.002 USDC on Base)
  • GET /x402/v1/company/1 — Company profile from a domain for lead enrichment: name, one-line description, industry, business model, products, HQ country and city, founded year, size hint (AI-extracted from the site's own home, about and contact pages), plus contact and about page URLs, public role emails, social profiles, email provider, DNS provider, verified SaaS services and web tech read directly from the site and DNS. Organization data only. Cached 7 days. (0.02 USDC on Base)
  • GET /x402/v1/email/1 — Email address validation: syntax, MX, SMTP mailbox check, disposable and role detection. (0.005 USDC on Base)
  • GET /x402/v1/ssl/1 — TLS certificate of a public host on port 443: validity, issuer, expiry, SAN. (0.003 USDC on Base)
  • GET /x402/v1/audit/1 — AI security audit of a domain: runs DNS, SPF, DMARC, TLS, HTTP security headers, WHOIS expiry and IP blacklist checks, then returns a 0-100 score, findings by severity and exact fixes (DNS records and header lines to add). Reports are cached 24h. (0.05 USDC on Base)

+2 more endpoints.

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