General Information

ZapSign is an electronic document signing platform that ensures authenticity, integrity, and non-repudiation. All signatures made through ZapSign are legally valid in their respective jurisdictions. The signature is legally valid in the US, EU, Latin America, with few exceptions. Click here to learn about the legal validity of signatures in each country

If you haven’t yet integrated with ZapSign, we recommend starting with the testing environment (sandbox) by clicking here to avoid charges.

API Implementation Essentials

We work with a REST API that uses GET and POST methods. All data is read in JSON, and our responses are also in JSON.

Null Strings: Our API does not accept strings defined as null. If a field is defined as a string, do not send it as null. If you want the field to be empty, send it as an empty string ("") or simply omit it from your request.

Booleans vs. Strings: true and false (booleans) are not equivalent to "true" and "false" (strings). Be sure to use the correct type to avoid test failures.

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Time Management

• UTC+0 Time Zone: Our server stores dates and times in the UTC+0 time zone. Most frameworks and browsers automatically perform this conversion when dealing with datetime objects.

For any questions, please contact our support team via WhatsApp or by email at [email protected]. You can also speak with our specialists for customized solutions.

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