Wallet architecture and trust boundaries

Wallet and key architecture

Every invoice gets its own Solana wallet, generated by the API at checkout creation. The wallet's private key is encrypted at rest before it is stored and is never included in an API response or exposed to the browser. Organization API keys are stored as hashes and are only accepted by server endpoints — the browser never receives one.

The server-managed invoice wallet boundary

Because PreInc's server generates and encrypts each invoice wallet's key, PreInc's infrastructure — not the customer or the founder — is the party technically capable of decrypting that key. PreInc does not describe this arrangement as "non-custodial." Founders should evaluate this boundary before relying on it for funds they cannot afford to lose.

Current settlement and sweep controls

A payment is recorded as paid either through the implemented verifier or through founder-authorized manual confirmation. A separate administrative script can decrypt an invoice wallet and sweep or refund its balance to a configured destination wallet. That script defaults to a dry run and requires an explicit confirmation flag before it sends any transaction.

Security and responsibility boundaries

PreInc is early-stage infrastructure. Security, operational, and compliance reviews are ongoing and are not yet complete. Founders and customers should weigh that status before sending funds they cannot afford to lose, and should review the product's known risks before relying on it for real payments.

What PreInc is — and is not

PreInc is early-access software for creating USDT-on-Solana checkouts, generating and encrypting per-invoice wallets, and recording payment and confirmation state.

PreInc is not a bank, card processor, crypto exchange, custodian, Merchant of Record, incorporation service, accounting service, legal adviser, or tax adviser.

Founders remain responsible for the product or service they sell, customer support, refunds, recordkeeping, taxes, legal obligations, and determining whether they may trade in their jurisdiction and circumstances.