eSign.AI
7.3#13 in electronic signature softwareFrom $24.90 a monthAndroidiOSWebAPI
VisiteSign.AI vs OpenSign
What both publish
| Fact | eSign.AI | OpenSign |
|---|---|---|
| API | The company says its native API can embed contract execution into workflows, and its FAQ says AI agents can orchestrate signing workflows via natural language or API. | OpenSign exposes a REST API authenticated with an x-api-token header and provides sandbox, production and EU endpoints. |
| Integrations | The integration center lists Google Login, Microsoft Entra SAML, WhatsApp, Okta, Singpass, iAM Smart, Lark, and Beisen integrations. | The Professional plan lists Zapier integration, Dropbox import and custom Gmail or SMTP sending. |
| Intended users | The company says it serves global enterprises and supports customers across Asia-Pacific, Europe, and the Americas. | The documentation describes the product as designed for individuals and businesses, from startups to large corporations. |
| Product | eSign.AI describes itself as an AI-native electronic signature and contract execution platform for drafting, reviewing, signing, and managing contracts. | OpenSign describes itself as an open-source PDF e-signature solution for signing, storing, and securing documents. |
eSign.AI plans
- Basic$24.90 a month
- ProfessionalPriced on request
- AdvancedPriced on request
OpenSign plans
- FreeFree
- Professional$9.99 a month
- Teams$19.99 a month
- EnterprisePriced on request
Pick eSign.AI if…
eSign.AI suits organizations managing contracts across regions, including teams needing AI assistance, identity checks, API embedding, or bulk signing.
Pick OpenSign if…
OpenSign may suit individuals and businesses that need PDF signing, reusable templates, or API-based signing workflows. It also offers self-hosting instructions for those who want to run it on Linux, macOS, or Windows.