Integration guides
Working code for
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Each guide builds one real flow end to end, with code we ran against Postgres with signed webhooks, redeliveries and failures: deposits credited exactly once, checkouts that handle late payments, and payouts that can't be sent twice.
Node.js · Express · PostgresAccept crypto deposits in Node.js with ExpressGive each customer USDT and USDC deposit addresses, credit deposits exactly once from signed webhooks, and reconcile hourly, with tested Express and Postgres code.
Next.js · App Router · PostgresStablecoin checkout in Next.jsAdd a Pay with USDT or USDC button to a Next.js App Router app with hosted payment links: route handlers, webhook verification, late payments and refunds.
Node.js · Payouts · PostgresSend USDT payouts from Node.jsSend stablecoin payouts and batches from Node.js that can't pay twice: fee previews, approvals, error handling and webhooks that settle or refund each payout.
Python · FastAPI · PostgresAccept crypto deposits in Python with FastAPIDeposit addresses per customer, deposits credited exactly once from signed webhooks, and hourly reconciliation, with the Valtu Python SDK, FastAPI and Postgres.
Python · DjangoAccept crypto deposits in DjangoAdd stablecoin deposits to a Django project: a deposit address per user, exactly-once crediting from signed webhooks, and a reconcile management command.
New to the terms? The glossary explains finality, sweeps, gas and the rest. The full reference is in the API guide.
Put it into practice.
Every workspace starts on testnets with free test coins: same dashboard, same API. Go live when your team is ready.