# Verifik AI — Zelf Proof Encrypt with Liveness Active User

> Verifik AI — Zelf Proof Encrypt with Liveness Active User is a paid API for AI agents from ai.verifik.co, paid per call via x402, $0.4/call, status unknown (last checked 2026-10-11).

Encrypts and generates a zelf-proof for an active user identity with liveness verification, returning a signed cryptographic proof payload for KYC/identity attestation.

## Facts

- Endpoint: POST https://ai.verifik.co/api/zelf-proof/encrypt-with-liveness-active-user?utm_source=zero.xyz
- Price: $0.4/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/verifik-ai-zelf-proof-encrypt-with-liveness-active-user-11de664a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_b60eJJ3FfNeGhrro9hCcd

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability verifik-ai-zelf-proof-encrypt-with-liveness-active-user-11de664a -d '<json body>'
```

Example prompt: Run a Verifik zelf-proof encryption with active liveness for this user so I can get a signed cryptographic identity proof I can use in our KYC onboarding flow.

## When to prefer this

Use this endpoint when you need a cryptographically signed, encrypted proof that a specific user has passed an active liveness check — ideal for autonomous agent KYC pipelines that require tamper-evident identity attestation without a subscription, paying per validation via USDC.

## Known failure modes

- Missing or malformed input identity data returns a 400 validation error
- Liveness check failure results in proof generation rejection
- Payment not fulfilled via x402 returns 402 Payment Required
- Invalid or expired session data causes authentication failure
- Service unavailable for unsupported regions outside LATAM coverage

## How this service works

Verifik AI — x402 KYC &amp; KYB for autonomous agents, with deep LATAM coverage: national IDs, companies, vehicles, sanctions, and regional registries. Pay per validation, no subscription lock-in.

## Output

Returns a Verifik API JSON response containing a signed data object and a cryptographic signature — an encrypted zelf-proof attesting that the user is live and their identity has been verified.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "input": {
   "type": "object",
   "properties": {
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {}
    }
   }
  },
  "output": {
   "type": "object",
   "properties": {
    "example": {
     "type": "object",
     "description": "Verifik API JSON response (typically data and signature).",
     "additionalProperties": true
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/verifik-ai-zelf-proof-encrypt-with-liveness-active-user-11de664a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from ai.verifik.co](https://www.zero.xyz/host/ai.verifik.co/llms.txt)