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I try to use 0x Swap rest API to swap a token. buyToken=0x0e09fabb73bd3ade0a17ecc321fd13a19e81ce82 sellToken=0x07515f6d56879040b02c4d355df62ec5aede4c7e

But i got WalletExecuteDelegateCallFailedError, what happened?

Am i missing something?

The allowance is set to maximum and the balance is sufficient, tried with 1inch api and it works properly, what does that error means ?

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2 Answers 2

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0x API doesn't currently support fee-on-transfer tokens, which 0x0e09fabb73bd3ade0a17ecc321fd13a19e81ce82 appears to be.

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  • aaahhh, i see, that's explain everything :D
    – Its Wawan
    Commented Oct 22, 2021 at 7:09
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You may not have the available balance or allowance set correctly to the 0x Exchange contracts.

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  • The allowance is set to maximum and the balance is sufficient, tried with 1inch api and it works properly, that's why the url above shows different message now
    – Its Wawan
    Commented Oct 21, 2021 at 7:52

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