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Version: 1.0

Gasless Approvals Token List

Use the endpoint below to access the list of tokens that support gasless approvals for each chain. To select a chain, set the 0x-chain-id in the request header to the corresponding chain ID as listed below.

Gasless Approvals Token List: https://api.0x.org/tx-relay/v1/swap/gasless-approval-tokens

ChainChain ID
Ethereum Mainnet1
Polygon137
Arbitrum42161
Base8453
Optimism10

You can also examine a token’s eligibility at trade time, by observing the response from requests to /tx-relay/v1/swap/quote. If the variable isGaslessAvailable = true, the token the user is selling supports gasless approvals