> ## Documentation Index
> Fetch the complete documentation index at: https://docs.popsink.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Application Source

The Application Source Connector allows you to directly send data to Popsink using Python, Node, Go, Java or other programming languages. It is the most efficient way to build a direct integration between your application and Popsink. Start by creating a connector then you will be able to register the topics you wish to send data to.

## Compatible versions

|                        |                                                                                              |
| ---------------------- | -------------------------------------------------------------------------------------------- |
| **Protocol**           | Kafka wire protocol — any client library (Python, Node.js, Go, Java, …)                      |
| **Client requirement** | Kafka client supporting `SASL_SSL` and API version negotiation (Kafka 2.1 protocol or later) |
| **Schema registry**    | Confluent-compatible Schema Registry API                                                     |
| **Transport**          | TLS 1.2 or later                                                                             |