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Questions tagged [etherscan]

Etherscan allows you to explore and search the Ethereum blockchain for transactions, addresses, tokens, prices and other activities taking place on Ethereum

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Get transaction history of all usdc that has been deposited and withdrawn from the pool etherscan api

This means we have to get the transaction history of all the usdc that has been deposited and withdrawn into/from the pool (the smart contracts).
LEGENDRYzZzZ
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How to see the most recent bids on different marketplaces for ERC721 token?

I had a similar question regarding different listings. Since there can be multiple listings for the same ERC721 token, it was only possible to retrieve the data about those listings using APIs of different marketplaces. Is there an API to retrieve…
Cenk
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Is there an API to retrieve ERC-721 listings/bids from different marketplaces?

I am trying to get listings and/or the latest bids for the same ERC721 token from different marketplaces (such as Opensea or Looksrare). I know that those platforms have their own APIs but none are commercially available. Any of the following…
Cenk
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Etherscan API doesn't display the Ethereum balance correctly in Javascript

I want to display the eth balance "result" which for example, displays from the etherscan API { status: "1", message: "OK", result: "13386321000069000000000069" } Using the Ethereum wallet 0x00000000219ab540356cBB839Cbe05303d7705Fa but my code…
mintgg
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Gave the wrong ABI to etherscan.io and I need to send a new one

The contract is already verified and published but I need to give a different ABI. However I can't reverify the contract.
Jonathon J
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i am trying to send a transaction but it throws an error

eror on terminal if (!cond) throw new Error(msg) ^ Error: Expected private key to be an Uint8Array with length 32 my Code its about signing eror. I am absolutely lost as to why this is not working as I have copied every piece of code…
rayan
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What are some advantages of a Blockchain Explorer built on Infura's Ethereum API over Etherscan block explorer

I'm developing an Ethereum blockchain explorer with Infura as my backend; I also need to write a report why my choice of tools (relying on Infura) provides a better block explorer than Etherscan. Please if you have any experience with these two…
Bille Ibinabo
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Grabbing transaction fee for a list of transaction hashes

I want to take a set of transaction hashes pulled from my contract info on etherscan and use those to grab the transaction fee from the transaction details page, without having to manually click into each page. Can anyone point me to the right…
PeteG
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How to change old implementation contract address on etherscan?

I wrote upgradable smart contract using solidity and upgraded contract several time. When I upgraded smart contract, implementation contract address was changed. But under that address, the old implementation contract address still…
PrincePRS
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NomicLabsHardhatPluginError: The constructor for contracts/FundMe.sol:FundMe has 1 parameters but 0 arguments were provided instead

I'm trying to verify and submit my contract source code to etherscan using a headset, but I'm getting the following error and I don't understand how to solve it. I've read through the code and can't figure out what I'm doing wrong. Please can anyone…
Gab
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How to edit profile summary of an ERC20 token. on etherscan test networks?

I created an ERC20 token using solidity and truffle , and deployed it to ROPSTEN , Now it's visible on etherscan ropsten , I want to edit the profile summary but the options don't appear ( although i verified the bytecode ) Any solution ?
Khalfoun Mohamed El Mehdi
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Verifying Smart Contract programmatically using POST method for APIs returning this error: "Error! Missing Or invalid Module name"

I'm trying to verify a simple contract programmatically on BSCScan testnet using their APIs as they have explained in their docs: verifying-contracts-programmatically. I don't intend to use Hardhat or a similar tool. I am doing this on a REACT…
Blue Lion
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Solidity - Invalid BigNumber string (argument="value" value="" code=INVALID_ARGUMENT version=bignumber/5.4.2) Error

Smart Marketplace Contract: allow user to list the erc20 tokens to sell at what price in matic the buyers need to provide permission to the contract to interact with the smart contract the seller can cancel the listing at anytime ropsten…
jayyyo
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Is possible to see output data when tracking a transaction from its address on Etherscan?

I wonder if it is possible to see "Output Data" on Etherscan for non-view transactions that returned values, I mean it is possible to see "Input Data" when fetching a transaction on Etherscan from its address but can I find transaction's output…
0x55b1E06FF
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Etherscan fetching wrong parameter name in input data information table?

The information table (bottom of a tx page) in Etherscan shows one of the parameters' name of a function call is "_foo", while I cannot find any reference anywhere in the codebase (including JSON ABIs, events) to a parameters called "_foo". How is…
Pm Rivière
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