A single connection to our API is recommended. Multiple connection attempts when using the register query will be rejected. If you attempt a second register API query while one is already running, you will receive the following error: 532 - Multiple connections to API not allowed
There are currently no limitations on the number of API queries you can perform per day, but avoid unnecessary queries and connections to the Above.com Registrar API. We monitor all API queries and may disable API access if we see unnecessarily high usage from your account.