How to bridge USDT across chains with an API
Move USDT across BNB Chain, Polygon, Arbitrum, Base and more with one API call. No bridge to build, no gas to manage. See the steps and pricing.
How to bridge USDT across chains with an API
A bridge moves a token from one chain to another — for example, taking USDT out of BNB Chain and receiving it on Polygon. Building this yourself is expensive: contracts, liquidity, monitoring and failure recovery. The VKX Bridge API does that for you in one call.
The fast way (npm)
- Install: npm install @vkx/bridge
- Call the bridge function with your key, the source chain, the destination chain, the amount and the destination address.
- VKX creates the order, broadcasts the deposit and tracks it to completion — returning the destination transaction hash.
When the source is Polygon, the deposit is gasless: VKX pays the gas and your wallet needs no POL. From BNB Chain, the source covers the ERC-20 send gas (BNB).
Supported networks
- From BNB Chain: to 7 chains (Polygon, Arbitrum, Base, Optimism, Avalanche, Ethereum and BNB itself).
- From Polygon: to 4 chains.
- USDT everywhere; Base uses USDC.
Pricing
- Standard: 0.30% + US$0.20 per transfer — completes in 1 to 3 minutes.
- Express: 0.30% + US$1.00 — completes in under 1 minute.
Every order takes an Idempotency-Key: if your call times out, retry with the same key and you get the same order back — never a duplicate.
Who it's for
Exchanges, wallets, games, fintechs and any app that needs to move stablecoins across chains without becoming a bridge-infrastructure company.
Get started: https://vkxtech.com.br/bridge