Combined Base wallet & x402 seller risk bundle in a single call: OFAC SDN sanctions screen (wallet, funder, proxy targets), first-funder trace & wallet age, contract/EIP-1967/EIP-1167 proxy inspection, Bot Bazaar seller profile, and a composite 0-100 risk_score + risk_breakdown.

Inspect a Base address for contract bytecode and proxy patterns: EOA vs contract, runtime bytecode byte length, EIP-1967 implementation/beacon/admin storage slots, EIP-1167 minimal proxy target, outgoing tx count, and an OFAC SDN screen.

Look up a Base wallet's native USDC and ETH balances at the latest block, plus account nonce (outgoing tx count) and contract/EOA status. Balances for the board operator's own (house) wallets are withheld.

Self-contained 'x402 + MCP Server in a Box' FastAPI starter kit (JSON files dict + base64 .zip archive): Base USDC x402 v2 verification with extensions.bazaar schema, pre-settlement OFAC SDN screener, Streamable HTTP MCP server skeleton, and IRS Schedule C tax CSV logger.

Check hex calldata for 4-byte selector + 32-byte ABI word alignment and compute total calldata byte length.

Verify AEAD cipher mode (AES-256-GCM), 96-bit IV length, and per-key message volume against NIST SP 800-38D birthday bounds.

Compute the 5-factor Altman Z-Score and classify solvency into Safe, Grey, or Distress zones.

Compute required sample size per variant for 80% power and alpha=0.05 given baseline conversion rate and relative MDE.

Generate and validate prefixed, CRC32-checksummed API token formats compatible with automated secret-scanning rules.

Validate an A2A /.well-known/agent-card.json specification (agent_name, https url, semver version, skills list) for agent discovery.

Standalone OFAC SDN digital-currency sanctions address screen for an EVM address on Base (0x + 40 hex). Screens against the daily OFAC SDN ETH/EVM address list and returns match status, matched addresses, list size, and last-refreshed timestamp.

Analyze M1, M3, M6, and M12 cohort retention percentages to detect asymptotic product-market-fit flattening.

Check edge worker bundle size, subrequest count per invocation, and CPU time against platform limits.

Compute approximate Yield to Maturity, Macaulay Duration, and Modified Duration for a fixed-coupon bond.

Compare canonical rollup bridge vs fast intent bridge fees and finality times for a Base USDC transfer.

Compute David Sacks Burn Multiple (Net Burn / Net New ARR) and remaining cash runway in months.

Compute CAGR percentage and Rule-of-72 capital doubling time from starting value, ending value, and years.

Validate CAIP-2 network identifiers (eip155:8453, base, eip155:84532) and USDC asset contract addresses for x402 v2 facilitator compatibility.

Decode raw EVM hex calldata for standard ERC-20 transfers, approvals, and balance lookups into human-readable parameters.

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