This is a working code snippet that extracts the metadata details of any asset from any NFT collection on the Ethereum blockchain. It's working as of 2022-12-11, and should be working as long as GEM.xyz doesn't change its API framework. Two parameters are needed including the collection_contract and token_id.
The followings are the outputs for token 8069 for contract 0xBC4CA0EdA7647A8aB7C2061c2E118A18a936f13D (Bored Ape Yacht Club):
{'data': [{'_id': '6195e7289ba05365c32260a5', 'address': '0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d', 'collectionName': 'BoredApeYachtClub', 'collectionSymbol': 'BAYC', 'creator': '0xaba7161a7fb69c88e16ed9f455ce62b791ee4d03', 'currentBasePrice': 68830000000000000000, 'id': '8069', 'imageUrl': 'https://i.seadn.io/gae/GdZ3t-mpfLdoouicKp3tXRu3lww-FNQqEx--ruY5QubPjVVFPlUvP39I2am-J0iihW9HGiE9XCaPC2uCSQiRnK2o4-gARpUi-MH5ig?w=500&auto=format', 'lastSale': {'baseAsset': {'address': '0x0000000000a39bb272e79075ade125fd351887ac', 'decimals': 18}, 'basePrice': 65030000000000000000, 'from': '0x2bd0cbb03af55e337aabb179a7bf092218b8367c', 'market': 'blur', 'timestamp': '2022-12-11T08:27:47.000Z', 'to': '0xdcef0c8cff7c46aafb13806be86892368c115f6b', 'transactionHash': '0xed7d6aef7ba3c9a207dec7cac4daa1ac41adf4b49203b3966539ee908292862d'}, 'market': 'looksrare', 'marketUrl': 'https://looksrare.org/collections/0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d/8069', 'marketplace': 'looksrare', 'owner': '0xdcef0c8cff7c46aafb13806be86892368c115f6b', 'paymentToken': {'address': '0x0000000000000000000000000000000000000000', 'decimals': 18, 'symbol': 'ETH'}, 'pendingTrxs': [], 'priceInfo': {'asset': '0x0000000000000000000000000000000000000000', 'decimals': 18, 'price': '68830000000000000000', 'pricePerItem': '68830000000000000000', 'quantity': '1'}, 'rarityScore': 8236, 'smallImageUrl': 'https://i.seadn.io/gae/GdZ3t-mpfLdoouicKp3tXRu3lww-FNQqEx--ruY5QubPjVVFPlUvP39I2am-J0iihW9HGiE9XCaPC2uCSQiRnK2o4-gARpUi-MH5ig?w=500&auto=format', 'standard': 'ERC721', 'tokenId': '8069', 'traits': [{'trait_count': 412, 'trait_type': 'Clothes', 'value': 'striped tee'}, {'trait_count': 1551, 'trait_type': 'Mouth', 'value': 'bored unshaven'}, {'trait_count': 823, 'trait_type': 'Earring', 'value': 'silver stud'}, {'trait_count': 1242, 'trait_type': 'Background', 'value': 'blue'}, {'trait_count': 1352, 'trait_type': 'Fur', 'value': 'dark brown'}, {'trait_count': 407, 'trait_type': 'Eyes', 'value': 'crazy'}], 'url': 'https://looksrare.org/collections/0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d/8069'}], 'hasNext': False, 'total': 1}