Arbitrum One
Arbitrum One chain reference for Plaidly
Arbitrum One
Status: coming soon. Plaidly does not yet settle payments on Arbitrum One. The details below describe planned support. Today only Ethereum and Solana are settleable.
Overview
| Property | Value |
|---|---|
chain value | arbitrum |
| Finality | ~15 minutes (L1 settlement) |
| Native token | ETH |
| Address format | Same as Ethereum (0x + 40 hex chars) |
| Mainnet RPC | Planned |
| Testnet | Arbitrum Sepolia |
Supported tokens
| Token | Contract (Mainnet) |
|---|---|
| USDC | 0xaf88d065e77c8cC2239327C5EDb3A432268e5831 |
| USDT | 0xFd086bC7CD5C481DCC9C85ebE478A1C0b69FCbb9 |
| ETH (native) | — |
Confirmations
When Arbitrum One settlement ships, Plaidly will require 10 block confirmations before marking a payment confirmed. Arbitrum block time is ~250ms, so 10 confirmations take under 3 seconds. Full L1 settlement occurs within ~15 minutes.
Fees
Arbitrum fees are very low (typically $0.01–$0.10 per transaction). ETH is required for gas — Plaidly's receiving wallets are pre-funded.
Testnet (Arbitrum Sepolia)
- Faucet: https://faucet.quicknode.com/arbitrum/sepolia
- Explorer: https://sepolia.arbiscan.io
- Use the sandbox simulate endpoint for instant test confirmations
Address format
Arbitrum uses the same address format as Ethereum:
0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045Notes
- Arbitrum One is an Optimistic Rollup with ~7-day fraud proof window for withdrawals
- USDC on Arbitrum: use native USDC (
0xaf88...) not bridged USDC.e for better liquidity - Arbitrum has extremely high throughput (~40,000 TPS theoretical)
- Gas prices are typically much lower than Ethereum mainnet