All servers · Agent payments (x402)

Web & domain tools

si.fourzerotwo/web · v1.0.1

Measured by MCP Station

Description written by the publisher, not verified

Read any public page as markdown, link previews, URL safety, page audits, domain availability and…

Connect

claude mcp add --transport http web https://fourzerotwo.si/mcp/v/web

{
  "mcpServers": {
    "web": {
      "url": "https://fourzerotwo.si/mcp/v/web"
    }
  }
}

Tools as reported by the server

• domains__availability
  Registered or available, straight from the TLD registry. A few free samples a day, then $0.002 USDC per call via x402.
• domains__facts
  Registrar, created, expiry, age, status codes, nameservers and DNSSEC. A few free samples a day, then $0.002 USDC per call via x402.
• domains__dns
  A, AAAA, MX, NS, TXT, CNAME and CAA records (or one type). A few free samples a day, then $0.001 USDC per call via x402.
• domains__ip-owner
  Network, organisation, range, country and abuse email for an IP, from the regional internet registry. A few free samples a day, then $0.002 USDC per call via x402.
• domains__dmca-agent
  Published DMCA / abuse contact (email or form) for a major platform, host, CDN or registrar. A few free samples a day, then $0.002 USDC per call via x402.
• domains__abuse-contacts
  Everyone to send an abuse or takedown report to for a site: platform agent, hosting network (+ abuse email, CDN flag) and registrar. A few free samples a day, then $0.005 USDC per call via x402.
• domains__email-auth
  MX, SPF and DMARC for a domain, the mail provider, issues found and a grade. A few free samples a day, then $0.003 USDC per call via x402.
• domains__ideas
  Rule-based domain candidates for a keyword: exact, stopword-free, hyphenated, prefixed and suffixed, across chosen TLDs, with a trademark flag. Free within the daily allowance, then $0.002 USDC per call via x402.
• ip-geolocation__lookup
  Country, continent, EU membership, network block, ASN, organisation and hosting flag for one IP. Free within the daily allowance, then $0.001 USDC per call via x402.
• ip-geolocation__country
  Country and continent for one IP. Free within the daily allowance, then $0.0005 USDC per call via x402.
• ip-geolocation__asn
  ASN, organisation and hosting flag for one IP. Free within the daily allowance, then $0.0005 USDC per call via x402.
• ip-geolocation__batch
  Full lookup for up to 100 IPs in one call. A few free samples a day, then $0.02 USDC per call via x402.
• seo__robots-check
  Whether a crawler (Googlebot, GPTBot, ClaudeBot…) may fetch a URL, the rule that decided it, and declared sitemaps. A few free samples a day, then $0.002 USDC per call via x402.
• seo__page-audit
  Title, meta, H1, canonical, noindex, hreflang, structured data, OG tags, word count, links, alt text, issues and a score. A few free samples a day, then $0.005 USDC per call via x402.
• seo__links
  Internal and external links on a page with anchor text and nofollow flags. A few free samples a day, then $0.003 USDC per call via x402.
• seo__keyword-intent
  Classify a search keyword as transactional, commercial, navigational or informational. A few free samples a day, then $0.0005 USDC per call via x402.
• validators__imei
  Validate an IMEI (length + Luhn) and split TAC, serial and check digit. Free within the daily allowance, then $0.0005 USDC per call via x402.
• validators__vin
  VIN format, check digit, WMI and model-year candidates. Free within the daily allowance, then $0.0005 USDC per call via x402.
• validators__iban
  IBAN mod-97 checksum and country length; UK sort code extracted. Free within the daily allowance, then $0.0005 USDC per call via x402.
• validators__uk-phone
  Classify a UK number (mobile, landline, freephone, premium…) and format as E.164. Free within the daily allowance, then $0.0005 USDC per call via x402.
• validators__uk-postcode
  Validate and normalise UK postcode format; split outward/inward codes. Free within the daily allowance, then $0.0005 USDC per call via x402.
• validators__email
  Email syntax, whether the domain accepts mail, disposable and role-account flags. Free within the daily allowance, then $0.001 USDC per call via x402.
• web__read
  Main content of a public web page as clean markdown, with title, byline, published date, canonical URL, language, word count and links. A few free samples a day, then $0.003 USDC per call via x402.
• web__unfurl
  Open Graph and Twitter card data, favicon, theme colour, JSON-LD types, RSS/Atom feeds and sitemaps for a URL. Free within the daily allowance, then $0.002 USDC per call via x402.
• web__url-safety
  Warning signs for a URL: redirect chain and final destination, TLS certificate, domain age, punycode and brand-lookalike tricks, bare IPs, and security-header grade. Free within the daily allowance, then $0.003 USDC per call via x402.

Website · JSON · Text for agents · Registry updated 2026-10-11