Frequently Asked Questions

This page lists some frequently asked questions of Liveness.

Q1. Where can I find the API specification?

Please find it here.

Q2. How can I get an API key?

Please refer to this page.

Q3. How can I contact support?

For customers with a paid order, please use the Jira support page to create a supporting ticket.

For customers without a paid order, please use the discussion page or send an email to the following mail address.

For customers who want to place a paid order, use the contact form.

Q4. Does the service support liveness detection with masks?

Yes, but we recommend to take off masks to get more accurate results.

Q5. What will happen if the API quota is exceeded?

You can still use the API service as usual. But you might be charged more compared to a standard rate.

Q6. What are the recommended input devices?

Liveness does not rely on a specific type of device. Any contents that fulfill the input media requirements are accepted. Refer to each section under Liveness Detection for more details.

Q7. What is the recommended threshold?

We highly recommend determining your customized threshold value. For reference only, 0.5 is a standard value. Please check this section for more details.

Q8. Why do I receive the 415 Unsupported Media Type error?

For POST method, the API gateway applies a validation checker on the Content-Type header. The only accepted value is application/json. Please make sure you do not use other values like application/json; charset=utf-8.

Q9. Does the service store images?

In Liveness, user uploaded image file or image data will not be stored anywhere in any condition. Image data in base64 encoding is disposed after liveness detection.