For AI agents: a documentation index is available at the root level at /llms.txt. Append /llms.txt to any URL for a page-level index, or .md for the markdown version of any page.

Dropbox Sign Web SDKs Sign Up

Documentation API Changelog

Skip to navigation

Changelog

September 3, 2026

September 3, 2026

API documentation

Added callback payload schemas and examples for the seven Fax API v3 events.

Was this page helpful?

October 6, 2026

August 19, 2026

Documentation API Changelog