# Services from orbit-web.orbit-builder.workers.dev on Zero

> orbit-web.orbit-builder.workers.dev serves 6 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/orbit-web.orbit-builder.workers.dev
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/orbit-web.orbit-builder.workers.dev/health.json

## Services

- [orbit Web Tools: DNS Lookup](https://www.zero.xyz/c/orbit-web-tools-dns-lookup-863989a2/llms.txt): $0.001/call via x402. Performs live DNS lookups for any domain via DNS-over-HTTPS (Cloudflare 1.1.1.1), returning records by type with TTL, DNSSEC status, parsed SPF, and DMARC policy.
- [orbit Web Tools: Web Page to Markdown](https://www.zero.xyz/c/orbit-web-tools-web-page-to-markdown-633500bb/llms.txt): $0.001/call via x402. Fetches a public web page and returns LLM-ready Markdown with title, meta, main content, and links — scripts/nav/footer stripped
- [orbit Web Tools: Email Address Validator](https://www.zero.xyz/c/orbit-web-tools-email-address-validator-46255083/llms.txt): $0.001/call via x402. Validates an email address for RFC syntax, MX/DNS records, disposable domain, role account, free provider, typo suggestions, SPF/DMARC, and returns a valid/risky/invalid verdict — without sending any mail.
- [orbit Web Tools: HTTP Security Headers Audit](https://www.zero.xyz/c/orbit-web-tools-http-security-headers-audit-6f33a956/llms.txt): $0.001/call via x402. Audits a public website's HTTP security headers live, returning a score (0-100), letter grade (A+ to F), and a prioritized list of fixes
- [Orbit Web Tools: AI-Agent Readiness Audit](https://www.zero.xyz/c/orbit-web-tools-ai-agent-readiness-audit-28e11e38/llms.txt): $0.001/call via x402. Audits a website's readiness for AI agents by checking llms.txt, robots.txt crawler permissions, sitemap, x402, OpenAPI, MCP, A2A card, and security.txt, returning a 0–100 score.
- [orbit Web Tools: URL Health Check](https://www.zero.xyz/c/orbit-web-tools-url-health-check-ebee25d5/llms.txt): $0.001/call via x402. Performs a live HTTP GET from Cloudflare's edge to check if a URL is reachable, returning full redirect chain, latency, TLS info, and decoded x402 payment terms if present

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)