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I am developing a large database of exploitable contract addresses and creating a website to host such a database for users to use to see if contracts are safe.

Is there a way to get all contract addresses from the ethereum blockchain?. Currently, I am using a web scraper, but I often get temporarily banned, even when using proxies and fake user credentials.

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You can do this by querying the blockchain directly instead of using your web scraper. For this, you would need to run a node and check each block's transactions to see if the associated addresses are contracts.

  • This sounds like what I am after. I have installed geth, but do you have any resources to check a single block for such a contract address? – Daniel Connelly Aug 30 at 1:08
  • There are a few ways. One is to use the eth_getTransactionReceipt RPC call that has a contractAddress field that is populated if the transaction is sent to a transaction. – shane Aug 30 at 4:10
  • The eth_getCode call returns the code at each an address. If the address is a contract, this will return something that is non-zero – shane Aug 30 at 4:12
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By default all full nodes contain every single contract and transaction on the Ethereum network.

I don't know how you would filter only contracts though and there would also be far to many contracts to check them all.

Mabye you could make a system where a user would post about a smart contract instead of reviewing one.

  • Do you know if a fast node contains the contract address? I am not looking for the bytecode (which I read a full node contains), but only want the addresses. – Daniel Connelly Aug 30 at 23:08

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