Kit Rx Website Security, TLS & Markdown API docs

HTTP security headers graded A+ to F with fixes, SSL/TLS certificate expiry and issuer from Certificate Transparency, clean Markdown from any web page or PDF/DOCX/XLSX document, and a website check covering redirects, metadata, AI-crawler rules, llms.txt and x402 presence. Each call is one x402 v2 payment in USDC on Base, Polygon, Arbitrum, Avalanche or Sei; no signup or API key. Requests that fail or match nothing are not charged.

Website check: redirects, headers, SEO, agent readiness $0.005

GET /v1/web/check

Facts about a URL from a live fetch, never its body: final URL, status and chain after up to 5 validated redirects, response time, content type, server, security headers present/missing (HSTS, CSP, nosniff, framing, Referrer-Policy, Permissions-Policy), title, description, canonical, lang, Open Graph, robots meta, robots.txt rules for GPTBot, ClaudeBot, Google-Extended, CCBot, PerplexityBot, *, llms.txt, agent card, OpenAPI, x402 discovery, 402 terms. DNS via Cloudflare DoH.

HTTP Security Headers Check (A+ to F grade) $0.005

GET /v1/web/headers

Grades a URL's HTTP security headers A+ to F (0-100) from one live fetch after up to 5 validated redirects. Per header: present, value, rating, points, issue, fix for HSTS, Content-Security-Policy (unsafe-inline, unsafe-eval, wildcards, frame-ancestors), X-Content-Type-Options, X-Frame-Options, Referrer-Policy, Permissions-Policy, COOP, COEP, CORP; Server/X-Powered-By version leaks; cookie Secure, HttpOnly, SameSite flags; missing list, summary. DNS via Cloudflare DoH.

Kit Rx Website Security, TLS & Markdown: Website tools for AI agents: security headers grade, SSL/TLS certificate check, page and document to Markdown, site and agent-readiness checks, paid per call over x402. Machine-readable: OpenAPI, llms.txt, /.well-known/x402, agent skills.