# Services from x402-extract-service.onrender.com on Zero

> x402-extract-service.onrender.com serves 11 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/x402-extract-service.onrender.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/x402-extract-service.onrender.com/health.json

## Services

- [Security Headers Audit API](https://www.zero.xyz/c/security-headers-audit-api-640c3c8b/llms.txt): $0.02/call via x402. Audits HTTP security headers for a given URL, returning a grade, score, per-header pass/warn/fail verdicts, and remediation advice.
- [Email Deliverability Audit API (SPF/DKIM/DMARC)](https://www.zero.xyz/c/email-deliverability-audit-api-spf-dkim-dmarc-9874696a/llms.txt): $0.02/call via x402. Audits one or more domains for email deliverability health by checking SPF, DKIM, and DMARC DNS records, validating syntax, and reporting policy strength.
- [PDF Metadata Intelligence API (hustler-extract /pdfmeta)](https://www.zero.xyz/c/pdf-metadata-intelligence-api-hustler-extract-pdfmeta-e88b0344/llms.txt): $0.02/call via x402. Extracts and audits PDF metadata including XMP fields, document info, fonts, page count, encryption status, image count, PDF version, and anomaly detection from a URL or base64-encoded file.
- [hustler-extract Technology Stack Fingerprinting API](https://www.zero.xyz/c/hustler-extract-technology-stack-fingerprinting-api-dcde8ae5/llms.txt): $0.02/call via x402. Fingerprints a public URL to identify the technologies, frameworks, CMS platforms, web servers, and JavaScript libraries it uses, returning categorized results with version and confidence data.
- [LinkSweep Broken-Link Scan API](https://www.zero.xyz/c/linksweep-broken-link-scan-api-051a3669/llms.txt): $0.02/call via x402. Scans a public webpage for broken links (and optionally image/script sources), returning a structured report of all dead URLs with HTTP status codes and anchor text.
- [llms.txt & AI-Crawler Audit API](https://www.zero.xyz/c/llms-txt-ai-crawler-audit-api-523d8214/llms.txt): $0.02/call via x402. Audits a domain's llms.txt file for presence, validity, dead links, and AI crawler access rules in robots.txt
- [llms.txt & AI-Crawler Audit API](https://www.zero.xyz/c/llms-txt-ai-crawler-audit-api-3bb2f7d7/llms.txt): $0.01/call via x402. Audits a domain's llms.txt file for presence, validity, broken links, and spec-compliance lint issues, returning a structured health report for AI crawler readiness.
- [hustler-extract URL-to-Markdown Extraction API](https://www.zero.xyz/c/hustler-extract-url-to-markdown-extraction-api-1c1fb7fd/llms.txt): $0.005/call via x402. Fetches a public URL and returns the page's readable article content as clean Markdown, with title, byline, word count, and site name.
- [DNS Health Audit API (hustler-extract /dnscheck)](https://www.zero.xyz/c/dns-health-audit-api-hustler-extract-dnscheck-6d7750cd/llms.txt): $0.01/call via x402. Performs a comprehensive DNS health audit on a domain, checking A records, DMARC, and other DNS configurations, returning pass/warn/fail findings.
- [Pre-Deploy Link Audit API (hustler-extract /deploycheck)](https://www.zero.xyz/c/pre-deploy-link-audit-api-hustler-extract-deploycheck-6b6e0f75/llms.txt): $0.02/call via x402. Scans a list of staging or production URLs for broken links before deployment, returning pass/fail status with details on each broken link found.
- [hustler-extract PDF-to-Markdown Conversion API](https://www.zero.xyz/c/hustler-extract-pdf-to-markdown-conversion-api-95965d78/llms.txt): $0.01/call via x402. Converts a PDF (via public URL or base64 payload) into clean, structured Markdown text, returning full page content, word count, and metadata.

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)