Accept USDC (ERC-20)
on Polygon with an API.

Take USDC payments from customers and pay out in USDC on Polygon: a deposit address for every customer, deposits credited once they're final, and payouts your own team approves. The keys stay in hardware enclaves you can verify.

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USDC on Polygon

The details.

NetworkPolygon · ERC-20 token
Contract0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359 View on explorer
Only this contract is accepted as USDC on Polygon: look-alike tokens sent to your customers' addresses are ignored.
Decimals6 (amounts in the API are whole numbers of the smallest unit)
DepositsA deposit counts once it is 64 blocks deep and its block is still part of the chain. If a reorganization removes it, it's never credited.
Minimum withdrawal10 USDC
Network feesNetwork fees are paid in POL. Your gas wallet can top up the POL that token payouts and sweeps need, within a daily cap you set.
AddressesEvery wallet has one EVM address (0x…), the same on Ethereum, BNB Chain, Base, Polygon and Lisk. A customer can send any supported coin on any of those networks to it.
Asset id in the APIUSDC-POLYGON

For developers

Deposit addresses and payouts in a few lines.

import { Valtu, depositAddress } from "@valtu/wallet-kit";
const valtu = Valtu.fromEnv();

// A deposit address for one of your customers (idempotent).
const wallet = await valtu.wallets.forCustomer("cus_42");
const address = depositAddress(wallet, "polygon");

// A payout of 25.50 USDC: retries never send twice.
const amount = await valtu.assets.toBaseUnits("USDC-POLYGON", "25.50");
await valtu.transfers.create({ walletId: payoutWalletId, asset: "USDC-POLYGON", amount, to, externalId: "payout_981" });

Python: pip install valtu, same calls (valtu.wallets.for_customer, valtu.transfers.create). Full guide: integration.

Related

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