> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://developers.hellosign.com/api/fax-line/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://developers.hellosign.com/_mcp/server.

> Learn how Dropbox Fax API can be used to manage fax lines.

# Fax Line

The Fax Line endpoints are used to purchase new fax lines and manage existing ones.

To sign up and purchase fax lines, contact support to upgrade to the Fax API plan: [Submit a Ticket](https://www.dropbox.com/get_help/dropbox-sign-issue)

## Fax Endpoints

| Summary                                                                  | Endpoint                | Description                                                 |
| ------------------------------------------------------------------------ | ----------------------- | ----------------------------------------------------------- |
| [Get Fax Line](/api/reference/operation/faxLineGet/)                     | /fax\_line/             | Return a Fax Line specified by the `number` parameter.      |
| [List Fax Lines](/api/reference/operation/faxLineList/)                  | /fax\_line/list         | Return a list of Fax Lines that you can access.             |
| [Create Fax Line](/api/reference/operation/faxLineCreate/)               | /fax\_line/create       | Purchase a new Fax Line based on the the specified country. |
| [Delete Fax Line](/api/reference/operation/faxLineDelete/)               | /fax\_line              | Delete a Fax Line specified by the `number` parameter.      |
| [Add User to Fax Line](/api/reference/operation/faxLineAddUser/)         | /fax\_line/add\_user    | Grant a user access to the specified Fax Line               |
| [Remove Fax Line Access](/api/reference/operation/faxLineRemoveUser/)    | /fax\_line/remove\_user | Revoke user access to the specified Fax Line                |
| [Get Available Area Codes](/api/reference/operation/faxLineAreaCodeGet/) | /fax\_line/area\_codes  | Return a list of available area codes in a specific country |

> Technical documentation for the Dropbox Sign API.


## API Docs

- Fax Line [Get Fax Line](https://developers.hellosign.com/api/fax-line/get.md)
- Fax Line [List Fax Lines](https://developers.hellosign.com/api/fax-line/list.md)
- Fax Line [Purchase Fax Line](https://developers.hellosign.com/api/fax-line/create.md)
- Fax Line [Delete Fax Line](https://developers.hellosign.com/api/fax-line/delete.md)
- Fax Line [Add Fax Line User](https://developers.hellosign.com/api/fax-line/add-user.md)
- Fax Line [Remove Fax Line Access](https://developers.hellosign.com/api/fax-line/remove-user.md)
- Fax Line [Get Available Fax Line Area Codes](https://developers.hellosign.com/api/fax-line/area-code-get.md)

## OpenAPI Specification

The raw OpenAPI 3.1 specification for this API is available at:
- [OpenAPI JSON](https://developers.hellosign.com/api/fax-line/openapi.json)
- [OpenAPI YAML](https://developers.hellosign.com/api/fax-line/openapi.yaml)