Availability: Enterprise plan
We don't charge for making API calls with the Sandbox key. Developers can use the Sandbox key to evaluate our API.
Limitations
- API calls with the Sandbox key are limited to 10 requests per minute, per endpoint.
- Generated PDFs have watermarks, and created documents have the "[DEV]" prefix by default.
- During the free trial period, you can only send documents if the sender and recipient email addresses are from the same organisation (email domain).