APISign

The product is an API for sending, tracking, and automating legally-binding contract signatures programmatically, removing the need to build document workflows from scratch. It sells to developers and legal teams in business-to-business companies that need to integrate e-signatures into software products. It is positioned against traditional e-signature platforms by offering usage-based pricing at $0.25 per contract with no monthly or per-seat fees and an API-first model with markdown templates.

Key features

• Send contracts via REST API
• Markdown templates with variables
• Real-time webhooks for events
• Instant contract delivery
• Audit log with IP and timestamps
• Template variable auto-population
• AI document review and error detection
• Compliance and clause checks
• Conversational AI editing with Gilberto
• Draft contracts from prompts
• Upload and convert .docx to markdown
• Variable validation and suggestions