> For the complete documentation index, see [llms.txt](https://docs.facephi.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.facephi.com/docs.facephi-en/sdks/backend-sdk/backend1n/technical_documentation/api_reference/management/version.md).

# /version

Checks the service version.

```json
{"openapi":"3.0.1","info":{"title":"Backend1n-Service REST API","version":"5.0.0"},"servers":[{"url":"http://127.0.0.1:6982/"}],"security":[],"paths":{"/version":{"get":{"description":"Checks the service version.","tags":["Management"],"responses":{"200":{"description":"A message with the version.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/VersionResult"}}}},"500":{"description":"An error occurred in the Backend1N service.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ExceptionResult"}}}}}}}},"components":{"schemas":{"VersionResult":{"type":"object","description":"The result of a version check.","properties":{"version":{"type":"string","description":"Service version number followed by the copyright notice, in a single text. It must not be parsed looking only for the version number without taking the rest of the string into account."}}},"ExceptionResult":{"type":"object","description":"An error occurred while calling the backend services.","properties":{"status":{"type":"number"},"error":{"type":"string"},"exception":{"type":"string","description":"Specific description of the reason for the exception (internal service text; it is not part of the contract)."},"timeStamp":{"$ref":"#/components/schemas/TimeStamp"}}},"TimeStamp":{"type":"string","description":"A date/time value (UTC) in \"%Y-%m-%dT%H:%M:%SZ\" format."}}}}
```