post https://{network-stellar}.gateway.tatum.io/transactions_async
This endpoint submits transactions to the Stellar network asynchronously. It is designed to allow users to submit transactions without blocking them while waiting for a response from Horizon. At the same time, it also provides clear response status codes from stellar-core to help understand the status of the submitted transaction. You can then use Horizon's GET transaction endpoint to wait for the transaction to be included in a ledger and ingested by Horizon.