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Listing ID: x402:332f3e3f383b3078da8e9479e0e90123f6670faa78afd03c1eb94431233a4e15

Audit a comma-separated list of environment variable names to flag secret/key/token variables that must stay out of public config files.

Listing ID: x402:35d393a46a5fb195df58b07f5a82d25023f60b20a210f62b4977464b99ca50bb

Check California privacy compliance for Sec-GPC: 1 browser signal handling and 45-day DSAR response SLA.

Listing ID: x402:4cea7f57dfb1d98e9dcb5cde0e26e11bd185e8ee2809709de4bb391646aec85b

Audit password KDF settings against OWASP 2026 minimums (Argon2id or PBKDF2-HMAC-SHA256 >= 600,000 iterations + 16-byte salt).

Listing ID: x402:4f1f16de8a3d5a349db5ffeaabfe67391f56ddc73c62c70863e264d4f2268414

Lint a Content-Security-Policy header string for unsafe-eval, wildcard script sources, and default-src restrictions.

Listing ID: x402:6210f01c1c495f0681156b5c02b94a92dc1ce207c9cc42e14c6545f8b4f7fa47

Composite 6-check DeFi execution audit chaining AMM slippage, MEV sandwich risk, flashloan breakeven, oracle staleness, liquidation distance, an…

Listing ID: x402:690b7e8a3aa4f000b4532127a3192d5db5fa1054ca00dd025b206a9628ac7b86

Certify an x402 seller domain & endpoint across 8 technical readiness & compliance checks (HTTPS, eip155:8453 Base USDC, OFAC SDN screen, HEAD->…

Listing ID: x402:7bf760b749ce820056061e588068433696ce75cbc08d8b677f51d5210bd08633

Compute and verify a timestamped HMAC-SHA256 webhook signature (timestamp.payload) for constant-time webhook authentication.

Listing ID: x402:7f8498749681cbf21da6ea3100fa41305c38d02404fd46d50ff88345cc7fe4ab

Audit a TLS cipher suite string for AEAD (GCM/ChaCha20-Poly1305) support and absence of legacy RC4/3DES/NULL ciphers.

Listing ID: x402:849de91b0469a8a3b6f2c14c887b5efc33aa54e04728e7b546834881ff891d02

Audit Cache-Control directives to ensure paid or authenticated API responses cannot be cached by shared CDNs/proxies.

Listing ID: x402:869861bfa1d74187a73a77129e8d23b66ee085d10fe43ce94a884058321b8f6d

Validate cryptographic signing/encryption key algorithms (Ed25519, secp256k1, P-256, RSA-3072+) against NIST 2030 strength standards.

Listing ID: x402:8abe2db4cd01c3233a23ed7dbb40e834e81f979f48b7204c42a1f5b05b51fb53

Validate security audit log schemas for actor/action/resource fields and cryptographic hash-chain (prev_hash/entry_hash) integrity.

Listing ID: x402:8e0e506578817be58fcfe4c21efabbe58eb13888a76fbbfbbd43c4e8ac9c1a04

Audit HSTS, X-Content-Type-Options, X-Frame-Options, and Referrer-Policy headers and compute an A-to-C security posture grade.