api.trustsource.cc x402 offerings

Check whether a domain's TLS/SSL certificate is valid, trusted, and not expiring before connecting to it. Performs a live handshake and returns a 0–100 score and tier (VALID/WEAK/EXPIRING/EXPIRED/UNTRUSTED/INVALID) with chain trust, days-to-expiry, signature algorithm, TLS version, and cipher quality. Use before submitting credentials, posting to a webhook, or following a payment link, to catch expired, self-signed, or MITM-risk certificates.

robots.txt and AI crawler policy check. Tells an agent whether a website permits crawling and whether it blocks AI bots such as GPTBot, ClaudeBot, Google-Extended, PerplexityBot and CCBot, before scraping, RAG ingestion, training data collection or archiving. Parses robots.txt and returns a crawl-policy tier with per-bot allow and disallow rules and sitemap URLs.

Verify whether a domain is legitimate and safe before transacting with it. Returns a 0–100 trust score and tier (TRUSTED/MODERATE/CAUTION/HIGH_RISK) derived from WHOIS domain age, TLD risk, DNS presence, and registrar reputation. Use to vet an unfamiliar URL, redirect target, or payment destination before sending USDC or trusting its content.

Grade a domain's email-authentication posture (SPF, DKIM, DMARC, BIMI, MX) and tell an agent whether the sender can be spoofed. Returns an A–F grade, a `spoofable` flag, the parsed DMARC policy and SPF qualifier, and specific misconfiguration issues. Use to judge a sender domain before trusting an email, or to confirm your own outreach domain won't be silently rejected by Gmail/Yahoo/Microsoft's 2026 authentication rules.

Audit a site's HTTP security headers before embedding, scraping, or trusting it. Returns an A+ to F grade and 0–100 score with structured analysis of HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy, and Cross-Origin headers, plus server-header disclosure. A defense-in-depth signal for agents reviewing a site's security posture — not a vulnerability scan.

Get a single CLEAR / REVIEW / BLOCK safety verdict on any URL before an agent clicks, fetches, submits data to, or transacts with it. Fuses domain trust (WHOIS age, TLD risk, DNS presence, registrar), a live TLS certificate check, and typosquat/lookalike-brand detection into one graded 0–100 answer with human-readable reasons — the go/no-go an agent can gate on instead of running and interpreting several separate checks itself.