eSignatures.com API
6.4#15 in e-signature apis softwareWebAPI
VisiteSignatures.com API vs OpenSign
What both publish
| Fact | eSignatures.com API | OpenSign |
|---|---|---|
| Integrations | The product lists Google Drive, Zapier, Make, Claude, ChatGPT, webhooks, and its REST API as integration options. | The Professional plan lists Zapier integration, Dropbox import and custom Gmail or SMTP sending. |
| Product | The REST API lets customers create, customize, send, and manage contracts and signers, then receive lifecycle updates through webhooks. | OpenSign describes itself as an open-source PDF e-signature solution for signing, storing, and securing documents. |
eSignatures.com API plans
- Pay as you go$0.49 a month
- SMS add-on$0.09, paid once
- Pay-as-you-go$0.49, paid once
- Live photo ID verification add-on$2.99, paid once
OpenSign plans
- FreeFree
- Professional$9.99 a month
- Teams$19.99 a month
- EnterprisePriced on request
Pick eSignatures.com API if…
You want what its maker publishes above — check its page for the details.
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.