Sending Stablecoins

Bitnob allows you to programmatically send USDT or USDC to any on-chain address across supported blockchain networks. This is a key capability for use cases like payouts, merchant disbursements, and remittances.

Supported Chains

You can send funds on any of the following networks:

Tron (TRC20)

Binance Smart Chain (BEP20)

Ethereum (ERC20)

Polygon

Solana

Base

Arbitrum (ARB)

Avalanche (AVAX)

Optimism (OP)

Polygon (POL)

TON (coming soon for send)

To view dynamically supported networks per stablecoin, use the /stablecoins/supported-chains endpoint.

Endpoint

POST /wallets/transfers This endpoint triggers an on-chain transfer from your wallet to an external address.

Request Parameters

parameter	type	required	description
to_address	string	Yes	Recipient's on-chain wallet address
amount	string	Yes	Amount in the smallest unit of the currency (e.g., '2000000' for 2 USDT)
currency	string	Yes	Stablecoin type (USDT, USDC)
chain	string	Yes	Blockchain network (e.g., tron, ethereum, bsc, polygon, solana)
reference	string	Yes	A unique identifier for the transfer
description	string	No	Optional transfer description for your records

Sample Request

Send Stablecoin Request

Sample Response

Send Stablecoin Response

Webhook Lifecycle

Once a transfer is created, Bitnob handles the on-chain broadcasting and confirmation tracking internally. Your app will receive:

transfer.success – after enough confirmations (based on chain)

transfer.failed – if the transfer is rejected, reverted, or times out on-chain

Best Practices

Idempotency: Always generate a unique reference per transfer to prevent double sending.

Fee Handling: Bitnob calculates and deducts gas/network fees from your balance. These are visible in the centFees field of the response.

Status Checking: Avoid polling — listen to transfer events via webhooks instead.

Address Validation: Use the addresses/validate endpoint to validate supported chains for the asset before sending.