mixsix Anyone knows how i can use horizon to search for a Transaction based on MEMO ID only on a specific address(public key)? I am implementing a gateway mechanism in PHP. IF anyone could help, that would be really great!
OrbitLens As far as I know, the only possible way to query transactions by memo it to run your own fully-synced Horizon instance. In this case you will be able to query the underlying postgresql DB directly. Or you can look for transactions fetching the account TX history: https://www.stellar.org/developers/horizon/reference/endpoints/transactions-for-account.html Max batch size is 200 txes per request, so it won't work for accounts which often initiate transactions (for example, anchors, exchanges, or trading bots).
