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Paj settles on seven chains: Solana, TON, and five EVM networks — Ethereum, Base, BNB Smart Chain, Monad and Arc. Every request that moves tokens takes a chain, and the value you send is the one in the chain column below. Not every part of the API is open on every chain yet. The short version:
ZCASH also appears in the chain enum in the API reference. It is not open for orders or payments yet — treat it as reserved.
The bank account address is Solana only. To pay a bank account from any other chain, open an offramp order instead: you get a one-off funding address on the chain you asked for, and the payout is the same.

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The settlement stablecoin

On each chain Paj settles in one stablecoin. That is the token an onramp delivers without a swap, the one an offramp pays out without pricing, and the one your fee (businessUSDCFee) is expressed in. Other tokens work too. An onramp for a different mint buys the stablecoin and swaps it on-chain into what you asked for, delivering the swap’s output straight to recipient. An offramp in a different token is priced at its USD value when the deposit lands. Either way the stablecoin is the cheapest and most predictable path, because there is no swap or price in between. Amounts in the API are always in whole tokens (25 means 25 USDC), so the differing decimals across chains — Binance-Peg USDC has 18, the rest have 6 — never show up in your requests.

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Naming tokens and wallets

mint is the token’s address on the chain you named: a Solana mint, an ERC-20 contract, or a TON jetton master. recipient is a wallet address in the same chain’s format. Both are checked against the chain you named, so a Solana address on a BASE order is a 400 rather than a lost transfer. What cannot be checked is which EVM network a wallet is meant for — every EVM chain shares one format, so a Base address is also a valid BNB Smart Chain address. Tokens are sent on the chain you named; make sure the wallet can receive there.

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TON

TON has no native USDC, so USDT is the settlement stablecoin: a TON onramp for USDT is delivered without a swap, and a USDT deposit to a TON offramp pays out without pricing. For Toncoin itself, set mint to "TON" rather than an address. Anything else is a jetton, named by its master address — not the jetton wallet that holds a user’s balance, which is a different address for every holder. TON addresses come in several spellings (bounceable EQ…, non-bounceable UQ…, and raw 0:…). Paj accepts any of them for recipient and mint and treats them as the same account. Each TON offramp order gets its own funding address, so no comment or memo is needed on the transfer — send to the address on the order and that is enough. TON deposits can take up to a minute to be picked up, a little longer than on the other chains, because Paj waits for the transfer to be fully indexed before settling it.

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Arc

Arc uses USDC as its gas token. The ERC-20 interface at 0x3600000000000000000000000000000000000000 is the one to name as mint; it reports USDC with 6 decimals, like everywhere else.

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EVM chains

The five EVM chains share one address format, and Paj’s funding addresses can exist on all of them at once. A funding address is only watched on the chain its order or payment was opened for.
Send on the chain the order names. Tokens sent to the right address on the wrong EVM chain arrive at an address Paj controls but are not recognised as paying the order, and recovering them is a manual process.