# `DocuSign.Api.Services`
[🔗](https://github.com/neilberkman/docusign_elixir/blob/v3.4.0/lib/docusign/api/services.ex#L5)

API calls for all endpoints tagged `Services`.

# `service_information_get_service_information`

```elixir
@spec service_information_get_service_information(
  DocuSign.Connection.t(),
  keyword()
) :: {:ok, DocuSign.Model.ServiceInformation.t()} | {:error, Req.Response.t()}
```

Retrieves the available REST API versions.
Retrieves the available REST API versions.  Docusign Production system: https://www.docusign.net/restapi/service_information Docusign Demo system: https://demo.docusign.net/restapi/service_information  You do not need an integration key to view the REST API versions and resources.

### Parameters

- `connection` (DocuSign.Connection): Connection to server
- `opts` (keyword): Optional parameters

### Returns

- `{:ok, DocuSign.Model.ServiceInformation.t}` on success
- `{:error, Req.Response.t}` on failure

---

*Consult [api-reference.md](api-reference.md) for complete listing*