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API ReferenceFax

Send Fax

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Creates and sends a new Fax with the submitted file(s)

Authentication

AuthorizationBasic

Use your API key with HTTP Basic authentication in the form Basic <api_key>. See Authentication for more information. ✅ Supported by Try it console (calls sent in test_mode only).

OR
AuthorizationBearer

You can use an Access Token issued through an OAuth flow to send calls to the Dropbox Sign API from your app. The access scopes required by this endpoint are listed in the gray box above. See Authentication for more information. ❌ Not supported by Try it console.

Request

This endpoint expects an object.
recipientstringRequired
Recipient of the fax Can be a phone number in E.164 format or email address
senderstringOptional

Fax Send From Sender (used only with fax number)

fileslist of stringsOptional

Use files[] to indicate the uploaded file(s) to fax

This endpoint requires either files or file_urls[], but not both.

file_urlslist of stringsOptional

Use file_urls[] to have Dropbox Fax download the file(s) to fax

This endpoint requires either files or file_urls[], but not both.

test_modebooleanOptionalDefaults to false
API Test Mode Setting
cover_page_tostringOptional
Fax cover page recipient information
cover_page_fromstringOptional
Fax cover page sender information
cover_page_messagestringOptional
Fax Cover Page Message
titlestringOptional
Fax Title

Response headers

X-RateLimit-Limitinteger
The maximum number of requests per hour that you can make.
X-RateLimit-Remaininginteger
The number of requests remaining in the current rate limit window.
X-Ratelimit-Resetinteger
The Unix time at which the rate limit will reset to its maximum.

Response

successful operation
faxobject
warningslist of objectsOptional
A list of warnings.

Errors

4XX
Client Request Error