20 confirmations, about 40 seconds
Base is an OP Stack chain with 2-second blocks. Chainhook waits 20 blocks before sending an event.
Base transfer webhooks
Watch any Base address and get a signed webhook for every confirmed ERC-20 transfer, including Circle's native USDC.
Base at a glance
What Chainhook waits for on Base before it sends a webhook.
- API value
base- Block time
- About 2 seconds
- Confirmations
- 20
- Time to webhook
- About 40 seconds
- Address format
- Hex, 42 characters, starts with
0x - Token standard
- ERC-20
- Fees
- Gas, paid in ETH by the sender
- Explorer
- BaseScan
Coins and tokens on Base
Every coin and token Chainhook detects on Base, with the contract it watches and its decimals.
What to know about Base
No USDT on Base
Tether doesn't issue USDT on Base, so it isn't listed. USDC is the main stablecoin on Base.
Gas is paid in ETH
Fees on Base are paid in ETH, but native ETH on Base is not detected yet. WETH and the other ERC-20 tokens listed here are.
Push, not polling
Base blocks arrive every 2 seconds. A poller per address adds up quickly, and missed polls mean missed payments. Chainhook scans every block, waits 20 confirmations, and sends you one event per matching transfer.
POST /v1/webhooks
{
"network": "base",
"type": "address",
"direction": "in",
"address": "0x5b8ddac816baad6111c7c7b39c88355c00ba7ea1",
"webhook_url": "https://api.example.com/webhooks/chainhook"
}Base questions
Can't find your answer? Contact support.
Does Chainhook detect USDT on Base?
No. Tether doesn't issue USDT on Base. Use USDC, or USDT on another network.
Does Chainhook detect ETH on Base?
Not native ETH yet. WETH and the other tokens listed here are detected.
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