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Minimum order sizes
This section details the minimum order sizes for all supported currencies on the Rio platform.
Minimums on Rio are always in the currency you are receiving. For a buy order, the minimum is in the crypto you are purchasing; for a sell order, it is in the fiat currency you’re selling your crypto for.
| Currency | Crypto / Fiat code API | Minimum order size |
|---|---|---|
| USDC (Ethereum) | USDC | $1.00 USDC (Ethereum) |
| USDC (Polygon) | USDC_POLYGON_NXTB | $1.00 USDC (Polygon) |
| USDC (Solana) | SOL_USDC_PTHX | $1.00 USDC (Solana) |
| USDT (Ethereum) | USDT_ERC20 | $1.00 USDT (Ethereum) |
| USDT (Polygon) | USDT_POLYGON | $1.00 USDT (Polygon) |
| USDT (Tron) | TRX_USDT_S2UZ | $1.00 USDT (Tron) |
| Mexican Peso | MXN | $20.00 MXN |
| Peruvian Sol | PEN | $4.00 PEN |
| US Dollar (any country) | USD | $10.00 USD |
Disclaimer: All technical documentation is subject to the terms and
conditions, which apply supplementarily and take precedence over the
documentation.