# Services from toolvend.dev on Zero

> toolvend.dev serves 9 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/toolvend.dev
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/toolvend.dev/health.json

## Services

- [toolvend.dev robots.txt + llms.txt Parser](https://www.zero.xyz/c/toolvend-dev-robots-txt-llms-txt-parser-44acd124/llms.txt): $0.005/call via x402. Fetches and parses a site's robots.txt (and llms.txt if present) into structured JSON, including which AI crawlers are explicitly blocked or allowed.
- [toolvend.dev QR Code Generator](https://www.zero.xyz/c/toolvend-dev-qr-code-generator-39175e18/llms.txt): $0.003/call via x402. Generates a crisp SVG QR code from a text or URL payload, with configurable size and error-correction level
- [toolvend.dev DNS Lookup (DoH)](https://www.zero.xyz/c/toolvend-dev-dns-lookup-doh-93def1a2/llms.txt): $0.005/call via x402. Resolves DNS records for any domain name via DNS-over-HTTPS, returning structured JSON for common record types (A, AAAA, MX, TXT, NS, CAA, and more).
- [toolvend.dev Email Authentication Posture Check](https://www.zero.xyz/c/toolvend-dev-email-authentication-posture-check-fde22863/llms.txt): $0.01/call via x402. Fetches and parses DMARC and SPF DNS records for a domain, scores email authentication posture 0-100, and returns findings with fix recommendations.
- [toolvend.dev Sitemap Parser](https://www.zero.xyz/c/toolvend-dev-sitemap-parser-d71f7df4/llms.txt): $0.005/call via x402. Fetches and parses a sitemap XML or gzip file from a public URL and returns structured JSON, optionally following child sitemaps in a sitemap index.
- [toolvend.dev Email Authentication Posture Check](https://www.zero.xyz/c/toolvend-dev-email-authentication-posture-check-55910867/llms.txt): $0.01/call via x402. Fetches and parses DMARC and SPF DNS records for a domain, scoring email authentication posture 0-100 with detailed findings and fix recommendations.
- [toolvend.dev VAT Calculator](https://www.zero.xyz/c/toolvend-dev-vat-calculator-d822292a/llms.txt): $0.002/call via x402. Calculates EU-27 + UK VAT, converting net-to-gross or gross-to-net at standard or reduced rates for a given country and amount.
- [toolvend.dev LEI / KYB Lookup](https://www.zero.xyz/c/toolvend-dev-lei-kyb-lookup-1d3bff90/llms.txt): $0.008/call via x402. Looks up a legal entity by LEI code, returning official identity, jurisdiction, addresses, registration status, renewal standing, risk flags, and GLEIF data freshness.
- [toolvend.dev RDAP Domain Lookup](https://www.zero.xyz/c/toolvend-dev-rdap-domain-lookup-ecdd440c/llms.txt): $0.005/call via x402. Returns modern WHOIS (RDAP) data for a domain: registrar, creation/expiry dates, status flags, nameservers, and DNSSEC info.

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

- [Zero catalog index](https://www.zero.xyz/llms.txt)