Sign up for the Dropbox Fax API
Updated Nov 25, 2025
In this article
The information in this article applies to all customers on Dropbox Fax plans.
Note: The Dropbox Fax endpoints have changed from v1 to v3. The v1 endpoints will no longer being maintained. Learn more about the migration to the new v3 endpoints and the benefits for developers.
If you'd like to start using the Dropbox Fax API plan, you can contact the Dropbox Sign Support team, then set up your API.
Learn how to set up the Dropbox Fax API.
How much is the Dropbox Fax API plan?
The pricing structure is as follows:
- Rate per additional fax line: $2
- Rate per page (outbound and inbound transmissions): $0.05
- Monthly minimum: $100
Note: If you’re using v1 endpoints, the Dropbox Fax API plan doesn’t include a test or sandbox mode. You’ll need to subscribe, to access these features. If you’re using v3 endpoints, test mode is available at no additional cost.
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