83 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 JWT algorithm-confusion + kid-injection + JWKS-header-hijack probe (cycle 153) - forges 12 forged-JWT attack classes (alg:none variants + kid-injection variants + jku/jwk/x5u attacker-controlled) and (when public_ke...
Paid JWT HS256 signature-timing sidechannel probe (cycle 152, x402 $0.001) - forges 32 HS256 JWTs varying the LAST signature byte, sends each (default 12 iterations) against target's Authorization: Bearer header, measure...
Paid OWASP API Security Top 10 (2023) one-call composite audit (cycle 151, x402 $0.001) - fetches target URL + probes 24 conventional API paths in parallel via ThreadPoolExecutor, runs all 10 OWASP 2023 category checks:...
Paid CSP x Subresource-Integrity (SRI) verifier (cycle 150, x402 $0.001) - fetches URL HTML, extracts every external <script src=> + <link rel=stylesheet href=>, fetches each asset (200KB cap), computes sha256 + sha384,...
Paid web-cache-poisoning + deception active probe (cycle 145, x402 $0.001) - 5 unkeyed-header probes (X-Forwarded-Host + X-Original-URL + X-Forwarded-Prefix + X-Host + X-Forwarded-Server + X-Forwarded-For + X-Forwarded-P...
Paid deep CORS preflight OPTIONS audit (cycle 145, x402 $0.001) - 6 sequenced CORS probes (baseline GET + simple-Origin preflight + post+contenttype+auth preflight + multi-header preflight x-custom-1/x-custom-2 + credent...
Paid security-header mutation test (cycle 143, x402 $0.001) - fetches target URL 5x with deliberately different fingerprint headers (Chrome desktop + Firefox + Mobile Safari + python-requests bot + baseline); compares th...
Paid Content-Encoding integrity + compression-bomb detector (cycle 141, x402 $0.001) - fetches URL 3x: no Accept-Encoding baseline + Accept-Encoding: gzip + Accept-Encoding: br, gzip; records raw bytes + Content-Length +...
Paid HTTP/1.1 hop-by-hop header correctness probe (cycle 141, x402 $0.001) - opens raw TCP to host:443 + :80, sends 3 sequential GET requests with explicit Connection: keep-alive, X-Hop-Marker-A1b2c3, X-Internal-Trace-X9...
Paid Content Language detector (cycle 139, x402 $0.001) - fetches URL + extracts language declarations across html lang attribute + HTTP Content-Language header + og:locale/og:locale:alternate + hreflang link tags + meta...
Paid WebAssembly CSP + wasm-unsafe-eval coverage analyzer (cycle 137, x402 $0.001) - fetches target URL, scans for WASM indicators (inline WebAssembly.instantiate/compile + .wasm file references + <link rel=preload as=fe...
Paid DANE/TLSA + SMTP STARTTLS active probe (cycle 137, x402 $0.001) - resolves MX for domain, looks up _25._tcp.<mxhost> + _587._tcp.<mxhost> + _465._tcp.<mxhost> TLSA records (RFC 6698/7672), opens SMTP socket to MX:25...
Paid SSL-pinning / HPKP policy probe (x402 $0.001) - GET ?domain=<DOMAIN> checks for deprecated HPKP (RFC 7469) headers, CSP public-key-pins directives and pinning-related security headers, returning a pinning posture gr...
Paid rate-limit header surface + live burst probe (cycle 134, x402 $0.001) - fetches target 4x in a burst, parses 7 known rate-limit header families (IETF RFC 9239 draft, X-RateLimit-*, Twitter, Stripe, Shopify, GitHub,...
Paid CSP inline-fidelity validator (cycle 130, x402 $0.001) - fetches target URL, parses CSP, extracts every inline <script>/<style> block + event handler, computes sha256 of each, reports per-block {hash_in_csp, nonce_i...
Paid HTTP request-smuggling CL.TE/TE.CL/TE.TE tolerance evidence probe (cycle 129, x402 $0.001) - opens low-level socket (bypasses urllib header normalization) to target host, sends 6 PortSwigger-style evidence requests...
Paid Permissions-Policy + Feature-Policy header audit (cycle 124, x402 $0.001) - fetches target URL + iterates ALL Permissions-Policy (modern) AND Feature-Policy (legacy) headers, parses 17 tracked features (camera/micro...
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 composite AI-agent onboardability summary (cycle 120, x402 $0.001) - single-call composite that answers 'could an AI agent onboard to use this URL as a paid tool?' - fetches target URL + probes /openapi.json + /.wel...
Paid Cache-Control header granularity audit (cycle 119, x402 $0.001) - fetches target URL, parses every Cache-Control directive (max-age / s-maxage / stale-while-revalidate / stale-if-error / public / private / no-cache...
Paid Idempotency-Key header support probe (cycle 118) — fetches target URL, scans response headers for Idempotency-Replayed + X-Request-ID signals, probes 6 OpenAPI candidate paths for explicit Idempotency-Key parameter...
Paid clickjacking-protection audit (cycle 115) — fetches the page headers + body, audits (a) X-Frame-Options presence + value (DENY/SAMEORIGIN valid, ALLOW-FROM deprecated per Chrome/Edge), (b) CSP frame-ancestors policy...
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 active HTTP/2 SETTINGS frame probe (cycle 106) — opens fresh TCP, performs TLS 1.3 handshake with ALPN ["h2", "http/1.1"], sends the HTTP/2 client connection preface (PRI * HTTP/2.0 + 24-byte magic + client SETTINGS...