# Ports

HEAVY.AI uses the following ports.

| Port | Service            | Use                                                                                                                                         |
| ---- | ------------------ | ------------------------------------------------------------------------------------------------------------------------------------------- |
| 6273 | heavy\_web\_server | Used to access Heavy Immerse.                                                                                                               |
| 6274 | heavydb tcp        | Used by connectors (heavyai, omnisql, odbc, and jdbc) to access the more efficient Thrift API.                                              |
| 6276 | heavy\_web\_server | Used to access the HTTP/JSON thrift API.                                                                                                    |
| 6278 | heavydb http       | Used to directly access the HTTP/binary thrift API, without having to proxy through heavy\_web\_server. Recommended for debugging use only. |