Web & domain tools

Measured conclusion: Deep-tested. L2 outcome: tools_ok.

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

Add to your agent

Copy this into your MCP client config:

{
  "mcpServers": {
    "Web & domain tools": {
      "url": "https://fourzerotwo.si/mcp/v/web",
      "transport": "streamable-http"
    }
  }
}

Measured tools (25)

• domains__availability read-only

  Registered or available, straight from the TLD registry. A few free samples a day, then $0.002 USDC per call via x402.

  Parameters:

  • domain (required) — string — Domain

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• domains__facts read-only

  Registrar, created, expiry, age, status codes, nameservers and DNSSEC. A few free samples a day, then $0.002 USDC per call via x402.

  Parameters:

  • domain (required) — string — Domain name (or URL)

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• domains__dns read-only

  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.

  Parameters:

  • domain (required) — string — Domain name (or URL)
  • type — string — A, AAAA, MX, NS, TXT, CNAME, CAA or ALL

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• domains__ip-owner read-only

  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.

  Parameters:

  • ip (required) — string — IPv4 or IPv6 address

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• domains__dmca-agent read-only

  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.

  Parameters:

  • domain (required) — string — Platform domain or URL

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• domains__abuse-contacts read-only

  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.

  Parameters:

  • domain (required) — string — Domain or URL

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• domains__email-auth read-only

  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.

  Parameters:

  • domain (required) — string — Domain

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• domains__ideas read-only

  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.

  Parameters:

  • keyword (required) — string — Keyword or phrase
  • tlds — string — Comma list of TLDs (default com,co.uk,io)
  • prefixes — string — Comma list of prefixes
  • suffixes — string — Comma list of suffixes
  • trademarks — string — Comma list of brand names to flag

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• ip-geolocation__lookup read-only

  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.

  Parameters:

  • ip (required) — string — IPv4 or IPv6 address

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• ip-geolocation__country read-only

  Country and continent for one IP. Free within the daily allowance, then $0.0005 USDC per call via x402.

  Parameters:

  • ip (required) — string — IPv4 or IPv6 address

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• ip-geolocation__asn read-only

  ASN, organisation and hosting flag for one IP. Free within the daily allowance, then $0.0005 USDC per call via x402.

  Parameters:

  • ip (required) — string — IPv4 or IPv6 address

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• ip-geolocation__batch read-only

  Full lookup for up to 100 IPs in one call. A few free samples a day, then $0.02 USDC per call via x402.

  Parameters:

  • ips (required) — string — Comma-separated IPs (max 100)

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• seo__robots-check read-only

  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.

  Parameters:

  • url (required) — string — URL
  • user_agent — string — Crawler user agent

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• seo__page-audit read-only

  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.

  Parameters:

  • url (required) — string — Page URL

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• seo__links read-only

  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.

  Parameters:

  • url (required) — string — Page URL

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• seo__keyword-intent read-only

  Classify a search keyword as transactional, commercial, navigational or informational. A few free samples a day, then $0.0005 USDC per call via x402.

  Parameters:

  • keyword (required) — string — Keyword

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• validators__imei read-only

  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.

  Parameters:

  • imei (required) — string — IMEI

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• validators__vin read-only

  VIN format, check digit, WMI and model-year candidates. Free within the daily allowance, then $0.0005 USDC per call via x402.

  Parameters:

  • vin (required) — string — VIN

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• validators__iban read-only

  IBAN mod-97 checksum and country length; UK sort code extracted. Free within the daily allowance, then $0.0005 USDC per call via x402.

  Parameters:

  • iban (required) — string — IBAN

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• validators__uk-phone read-only

  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.

  Parameters:

  • number (required) — string — Phone number

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• validators__uk-postcode read-only

  Validate and normalise UK postcode format; split outward/inward codes. Free within the daily allowance, then $0.0005 USDC per call via x402.

  Parameters:

  • postcode (required) — string — Postcode

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• validators__email read-only

  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.

  Parameters:

  • email (required) — string — Email

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• web__read read-only

  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.

  Parameters:

  • url (required) — string — Public http(s) URL

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• web__unfurl read-only

  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.

  Parameters:

  • url (required) — string — Public http(s) URL

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• web__url-safety read-only

  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.

  Parameters:

  • url (required) — string — Public http(s) URL

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

Publisher website

Measured by MCPYP probing. Untested fields are omitted, never estimated. Listing is always free; MCPYP never proxies calls or stores user tokens.