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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 ?

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 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 Oct 21, 2021 at 7:52

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