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Bridging Assets

How to move USDC from other chains into Senddy.

Overview#

Senddy runs on Base (Coinbase's Layer 2). If your USDC is on another chain, Senddy handles the bridge for you automatically.

Supported bridges#

Solana to Base#

Senddy uses Circle's Cross-Chain Transfer Protocol (CCTP) for Solana bridging. This is a native USDC bridge operated by Circle (the issuer of USDC), making it the most secure bridge available.

How it works:

  1. Tap Deposit and select Solana
  2. Enter the amount of USDC to bridge
  3. Approve the transaction in your Solana wallet
  4. Senddy's relayer handles the bridge — you don't need SOL for gas
  5. USDC arrives on Base and is deposited to your Senddy account

Timing: 15-20 minutes (waiting for Solana finality + Circle attestation)

Fees: Gasless. Senddy's relayer pays the Solana transaction fees.

Ethereum to Base#

Bridge USDC from Ethereum mainnet to your Senddy account on Base.

How it works:

  1. Tap Deposit and select Ethereum
  2. Enter the amount of USDC to bridge
  3. Sign an EIP-2612 permit (gasless signature, no ETH needed)
  4. The relayer submits the bridge transaction on your behalf
  5. USDC arrives on Base and is deposited to your Senddy account

Timing: ~15 minutes for standard bridge

Fees: Bridge fees apply (Ethereum gas costs).

Bridge status#

You can track the status of any pending bridge from the app. Senddy polls the bridge attestation service and notifies you when your funds arrive.

Already on Base?#

If your USDC is already on Base, you can deposit directly — no bridge needed. Just send USDC to your Senddy deposit address from the Deposit screen.