Signfast
A full-featured DocuSign replacement built in 25 minutes with AI agents
Lifecycle
Video
An e-signature application that replicates DocuSign's core features, including PDF signature fields, date fields, checkboxes, and initials. It supports multi-recipient workflows and OAuth, built and deployed entirely via a multi-agent AI platform.
Details
- Built with
- Opus 4.8NEWStrongsource explicitly credits Claude 4.7 Opus (Part 1: Base Structure & Functionality (Claude 4.7 Opus, Max Mode))
The source explicitly names a specific model that was verified and added to the registry.
- Posted by
- We haven't verified this person made this build — attribution is our best guess from public sources.
- Discovered
- Discovered onYouTube
- Source date
- Published on YouTube Jun 23, 2026
- Listed
- Added to Dropday just now · model released May 28, 2026
- Evidence
- Moderate
The video shows a live build and deployment of the functional application, although a direct public URL for the specific 'Signfast' instance is not provided.