How to fetch tokenURI from Polygon smart contract?

External question — Ethereum Stack Exchange Author: Mr. X Original post: https://ethereum.stackexchange.com/questions/122514 License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/ Adaptation: HTML converted to plain text; contact email addresses removed. I am trying to analyse different tokens in terms of the metadata they link to. I found a Polygon-based token project: https://opensea.io/assets/matic/0x50c2eae4903261b386c27c1733588e867f1a33db/10200 I wanted to check what the metadata of this token looks like and here's the problem. After checking on Polygonscan ( https://polygonscan.com/address/0x50c2eae4903261b386c27c1733588e867f1a33db#code ), the smart contract code needs to be decompiled. However, after decompiling, the tokenURI cannot be found. Somehow OpenSea downloads the image and displays it correctly. How can I then try to manually verify the token metadata and determine e.g. where the graphics are stored? Let's assume we are talking about this token - 10200

External answer — Ethereum Stack Exchange Author: Ismael Original post: https://ethereum.stackexchange.com/a/122724 License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/ Adaptation: HTML converted to plain text; contact email addresses removed. The contract returns true when querying for the ERC721 interface ( EIP 165 "Standard Interface Detection"). Using the standard EIP-721 you could query the tokenUri for existing events. For example it returns https://meta.fanadise.com/0x50c2eae4903261b386c27c1733588e867f1a33db/100 for tokenId 100.

External answer — Ethereum Stack Exchange Author: Nikolai Krivenko Original post: https://ethereum.stackexchange.com/a/132022 License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/ Adaptation: HTML converted to plain text; contact email addresses removed. It is not necessary to decompile the smart contract to get the tokenURI . You can just load the contract instance in Remix IDE with the correct interface. Here is one way how to do that: Create a new workspace from OpenZeppelin ERC721 template. Compile the SampleERC721 contract. At the deploy & run transactions tab Make sure you connected to the Polygon Mainnet Select ERC721 contract Set At address to 0x50c2eae4903261b386c27c1733588e867f1a33db Then call the tokenURI method with needed tokenId . The tokenURI method will return https://meta.fanadise.com/0x50c2eae4903261b386c27c1733588e867f1a33db/10200 for the tokenId 10200.