Upsign APIConnect signing workflows to your product

Build document and signing workflows into your product with a straightforward REST API, OpenAPI tooling, and signed webhooks.

Getting started

API Reference

Illustration of a historical figure signing on a tablet, in banknote-style engraving

SENDSend documents from your product

Create drafts, templates, and signature requests directly from your application. Upload files, configure recipients, and prepare documents for signing through the Upsign API.

Send documents

EMBEDLaunch workflows from your app

Start document workflows directly from your application and route users into secure Upsign experiences for document preparation, sending, and signing.

Launch workflows

AUTOMATEAutomate lifecycle workflows

Subscribe to verified webhooks and react to document lifecycle events automatically. Track status changes, trigger downstream workflows, and keep systems synchronized.

Automate workflows