StableIn

Decouple financial refund ledgers from digital product entitlements in NestJS and MySQL so partial SLA refunds and dispute freezes never accidentally revoke active customer access.

Resolve orphan crypto payments—including expired quotes, dust underpayments, and wrong-network transfers—using deterministic tolerance bands and operator recovery workflows in StableIn.

Eliminate floating-point rounding bugs in multi-chain stablecoin checkouts and partial refunds by enforcing raw integer token units, explicit decimal bindings, and BigInt ledger invariants.

Engineer an idempotent payment webhook ingestion pipeline in NestJS and MySQL that survives duplicate deliveries, out-of-order events, and network retries using monotonic state transitions.

Protect autonomous AI agents from API price-gouging and parameter tampering in x402 pay-per-call workflows using EIP-712 server quote signatures and client policy guardrails.