1,222 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.
Paid deep SPF record parser + DNS-lookup budget auditor (cycle 160 restored 2026-10-17, x402 $0.001) - parses v=spf1 into its directive list, classifies each mechanism per RFC 7208 SS5 (pass/fail/softfail/neutral/literal...
Paid buyer-side cost projection (cycle 187, x402 $0.001) - given a buyer's projected call volume and category mix, returns a monthly USDC spend estimate at THIS seller's catalog plus bundle-recommendation cost-reduction...
Paid x402 cart cost-quote (cycle 185, x402 $0.001) - GET with no params returns the FULL live price list of every paid route grouped into price tiers plus api_base + payTo + network + asset, so an agent can plan a workfl...
Email authentication check for a domain - SPF, DKIM and DMARC records plus the MX hosts and a deliverability score from public DNS-over-HTTPS (cycle 232, x402 $0.01) - GET ?domain=<DOMAIN> OR ?target=<DOMAIN> OR ?email=<...
Email authentication check for a domain - SPF, DKIM and DMARC records plus the MX hosts and a deliverability score from public DNS-over-HTTPS. ALIAS PATH of /api/email-deliverability, served at the exact slug the router'...
Email authentication check for a domain - SPF, DKIM and DMARC records plus the MX hosts and a deliverability score from public DNS-over-HTTPS. ALIAS PATH of /api/email-deliverability, served at the exact slug the router'...
CSV to JSON API - convert CSV to structured JSON, or JSON to CSV, in one call. PURE LOCAL, no account, no upstream. ALIAS PATH of /api/csv-json, published with the EXACT slug the router's winning row publishes. MEASURED...
Paid email + contact + social extraction via x402
Paid composite email-auth deliverability score (SPF + DKIM + DMARC + MTA-STS + BIMI rollup, A-F grade, post-Feb-2024 Gmail/Yahoo bulk-sender compliance check) via x402
Paid domain contactability audit — email/phone/physical-address/contact-page/social-profile/live-chat/contact-form detection with contactability_score 0-100 A-F grade via x402
Paid comprehensive DNS audit — parallel A/AAAA/MX/NS/TXT/CAA/SOA/DS queries via Cloudflare DoH, email-auth rollup (SPF/DKIM/DMARC + bulk-sender Gmail/Yahoo compliance), nameserver diversity, CAA policies, DNSSEC DS hint,...
Paid bulk-sender email-deliverability verdict (cycle 100) — composes MX + SPF + DKIM + DMARC + MTA-STS + TLS-RPT + provider fingerprint into a single 0-100 deliverability score with A-F grade and findings[]. Different fr...
Paid RFC822 email-header forensics (cycle 101) — POST text/plain raw email source OR pass ?header=<RFC822> (256KB cap); folds continuation lines, parses per-Received hop (from/by/with-protocol/id/for-address/ips/delay/ti...
Paid llms.txt provenance / author fingerprint (cycle 102) — extracts H1 + byline + contact emails + @-handles from llms.txt body, cross-references the same email against /.well-known/security.txt Contact: field (RFC 9116...
Paid email header forgery/anomaly detector (cycle 104) — accepts POST text/plain raw email OR GET ?header=<url-encoded RFC822> OR GET ?url=<.eml URL>; scores 13 forgery/anomaly patterns: From/Reply-To/Return-Path/Sender...
Paid BIMI (Brand Indicators for Message Identification) + VMC (Verified Mark Certificate) validator (cycle 105) — probes default._bimi.<domain> TXT per RFC 8848; parses v=BIMI1; l=<SVG URL>; a=<VMC URL>; s=<selector>; HE...
Paid brand-impersonation risk synthesis (cycle 106) — aggregates 8 signals (domain age via crt.sh, BIMI RFC 8848 record, RFC 9116 security.txt, llms.txt presence, /.well-known/x402 honest declaration, https→http redirect...
Paid heuristic email spam score for AI-agent triage (cycle 123, x402 $0.001) - accepts POST text/plain raw email source (RFC822 headers+body) or GET ?header=<url-encoded> or GET ?url=<.eml URL>; parses headers+body and c...
Paid SPF (RFC 7208) policy forensic analyzer (cycle 125, x402 $0.001) - parses every mechanism (+/-/~/? qualifiers) and modifier (redirect/exp), counts total_lookups (a=1, mx=1, ptr=5, exists=1, include=recursive) vs RFC...
Paid DKIM key-rotation freshness audit (cycle 157, x402 $0.001) - probes 25 common DKIM selectors in parallel via DoH, parses per-selector v/k/p/h/s/t/n tags, computes SHA-256 fingerprint of each public key, and scores r...
Paid SMTP open-relay test (cycle 154) - actually attempts MAIL FROM + RCPT TO against each MX host. Resolves MX via Cloudflare DoH, opens TCP/25, sends EHLO + MAIL FROM:<external> + RCPT TO for both local-domain and fore...
Paid deep SPF record parser + DNS-lookup budget auditor (cycle 160 restored 2026-10-17, x402 $0.001) - parses v=spf1 into its directive list, classifies each mechanism per RFC 7208 SS5 (pass/fail/softfail/neutral/literal...
Paid buyer-side cost projection (cycle 187, x402 $0.001) - given a buyer's projected call volume and category mix, returns a monthly USDC spend estimate at THIS seller's catalog plus bundle-recommendation cost-reduction...
Paid x402 cart cost-quote (cycle 185, x402 $0.001) - GET with no params returns the FULL live price list of every paid route grouped into price tiers plus api_base + payTo + network + asset, so an agent can plan a workfl...