Alternative token versions

Last updated: October 13, 2026

Some chains have more than one version of the same stablecoin, for example a native and a bridged USDC on a native USDT and the newer LayerZero bridged USD₮0. On each chain, Rhino.fi treats only one version as the default. We accept selected alternative versions, so deposits that arrive in the "other" version are processed instead of requiring a refund.

Supported alternative versions

as of Oct 1, 2027

Chain

Default

Alternative

Optimism

USD₮0

0x01bF...1071

USDT

0x94b0...8e58

Gnosis

USDC.e

0x2a22...76f0

USDC

0xDDAf...7A83

How it works

Alternative versions are accepted as deposits to Smart Deposit Addresses (SDAs).

  • No tokenOut set: the deposit is delivered 1:1 as the default version on the destination chain. For example, USDT deposited on Optimism arrives as USD₮0.

  • tokenOut set: the deposit is delivered as the configured tokenOut, as with any other deposit.

Alternative versions are deposit only. They can't be set as tokenOut, and Rhino.fi never delivers them.

What to know

  • No integration changes. Alternative versions don't appear in the bridge configs or in an SDA's supportedTokens list. Nothing changes in how you integrate.

  • Symbol in transaction data. In API responses and webhooks, these deposits show as USDT_ALT or USDC_ALT, not the default symbol. If you match on token symbol, map these to USDT and USDC.

  • Pricing. Alternative version → default version is delivered 1:1 at no extra cost and doesn't count towards the 1:1 stablecoin swap allowance. Delivery into any other token follows standard stablecoin pricing and counts towards 1:1 stablecoin swap allowance.

Need another alternative version supported? Contact your Rhino.fi Account Manager.