Bitcoin Forum

How could I do this in the bitcoin client?
Are there any API to search for transactions?
I'm not interested on how to do this manually, but instead on how to add this as a feature in the bitcoin client.

Set txindex=1 in the bitcoin.conf file.
Run the client with -reindex

For every number between 1 and the current block height:

    getblockhash [index]
    getblock [blockhash]

    For each transactionID returned by getblock

        getrawtransaction [transactionID]
        decoderawtransaction [rawtransaction]

        For each output in the JSON vout[] array

            Compare the value associated with the "addresses" tag to see if it matches the address you are looking for.

You can write a program to do this if you don't want to do it manually.