v1
latestOpenAPI 3.0.02026-07-22243670.8 KBToken
Get the on-chain ERC-20 allowance for a token, owner and spender
Reads allowance(owner, spender) on the ERC-20 token contract. Can be used to determine whether an approval transaction is needed before a swap or token sale.
get/v1/token/allowance
Query parameters
token_addressstring required
Example:0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48
The ERC-20 token contract address
ownerstring required
Example:0x8ba1f109551bd432803012645ac136ddd64dba72
The address owning the tokens
spenderstring required
Example:0x742d35cc6634c0532925a3b844bc9e7595f0beb1
The address allowed to spend the tokens
chainstring required
Example:ethereum_sepolia
The EVM chain to read from, e.g. ethereum_mainnet, ethereum_sepolia, base_mainnet or base_sepolia
Response
Successful response.
Example response
{
"allowance": "1000000"
}