
OpenSign
8.4#1 in e-signature softwareFrom $9.99 a monthFree planWebAPILinuxmacOS
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| Fact | OpenSign | Scrive API |
|---|---|---|
| API | OpenSign exposes a REST API authenticated with an x-api-token header and provides sandbox, production and EU endpoints. | The product provides a RESTful API and developer documentation. |
| Bulk sending | Yes | Yes |
| Free plan | Yes | No |
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.
You want what its maker publishes above — check its page for the details.