Tool or API.

Hello guys and girls. Can anybody please give me a help?

There's any online tool or maybe an API that allow me to, in a simple way:

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Put the contract address, for example 0x00000000000000000000000000000

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And then he will tell me if the contract is ERC20, ERC721……?

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I'm not expecting the "cake ready", I just need the way, all the rest I will try to do alone.