Passive Liveness API

Check for live presence from one face photo

Add a passive liveness signal without asking the user to blink, speak or turn their head. Send a Base64-encoded face image and receive a status, score and review warnings.

No challenge step
Sandbox and production modes
API access

Example response

Liveness result

Status
Approved
Method
PASSIVE
Score
92
Warnings
None

Route declined or uncertain results to review. A successful liveness result confirms a live-presence signal, not the person's identity.

What it does

One signal in a layered verification flow

Liveness

Assesses whether a submitted face capture appears to show a real, present person and returns signals for presentation risk and poor capture quality.

Not identity proof

It does not identify the person or prove that the face belongs to an ID holder. Add Face Match or ID verification when your decision requires those checks.

API workflow

Add liveness in three steps

01

Capture

Collect one clear, front-facing face photo with the user’s knowledge and a defined purpose.

02

Check

Send the image as Base64 JSON to the Passive Liveness endpoint with your API key.

03

Decide

Use the returned status, score and warnings in your own approval or manual-review rules.

Use cases

Where passive liveness fits

Remote onboarding

Add a live-presence signal before you accept a selfie in an account-opening flow.

Account recovery

Check a fresh face capture before moving a high-risk recovery request to the next step.

Age-gated journeys

Use passive liveness with age estimation or ID-backed age verification, depending on the assurance required.

Compliance context

Use liveness where your risk requires it

The FIC Act does not prescribe passive or active liveness. Accountable institutions must choose risk-based identity verification controls under their RMCP. Liveness can support those controls, but it does not replace customer identification or verification.

Facial biometric information is special personal information under POPIA. Your organisation remains responsible for a lawful basis, clear notices, appropriate security, purpose limitation and retention rules for the images and results it processes.

FAQ

Passive liveness questions

Does VerifyNow offer active liveness?

No. VerifyNow currently offers passive liveness. The user submits one face photo and does not need to blink, speak or turn their head.

Does a liveness result prove identity?

No. Liveness checks whether the submitted capture appears live. Use Face Match to compare the person with a trusted reference photo, and use an identity check when you need verified identity details.

Does the FIC Act require a liveness check?

No specific liveness method is prescribed. Accountable institutions must use risk-based identification and verification controls under their RMCP. Liveness can support that control environment where impersonation or presentation attacks are a relevant risk.

Does Age Estimation include a liveness signal?

Yes. VerifyNow Age Estimation returns an age estimate together with a passive-liveness method and score from the same face photo. In that workflow, you do not need to call the standalone Passive Liveness endpoint again.

Add passive liveness to your onboarding flow

Start in sandbox, review the response contract, then move to production when your approval and manual-review rules are ready.