# Verifik AI — El Salvador DUI (National ID) Validation

> Verifik AI — El Salvador DUI (National ID) Validation is a paid API for AI agents from ai.verifik.co, paid per call via x402, $0.3/call, status unknown (last checked 2026-10-17).

Validates an El Salvador national ID (DUI) by verifying document number and date of birth against official registries.

## Facts

- Endpoint: POST https://ai.verifik.co/api/sv/dui?utm_source=zero.xyz
- Price: $0.3/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-17
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/verifik-ai-el-salvador-dui-national-id-validation-d9079e43
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_txPclq9esBOE3f7ytedr_

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-el-salvador-dui-national-id-validation-d9079e43 -d '<json body>'
```

Example prompt: Can you verify whether this El Salvador national ID (DUI) is valid — document number 012345678, date of birth 1990-05-15?

## When to prefer this

Use this endpoint when you need to verify the identity of an individual from El Salvador using their national DUI document number and date of birth, especially for autonomous agent KYC flows, onboarding, or compliance checks targeting the LATAM market. Prefer this over generic identity services when you specifically need El Salvador national registry data with pay-per-use pricing and no subscription.

## Known failure modes

- Document number not found in registry — returns error or empty data
- Date of birth mismatch with registry record — validation fails
- Invalid document number format — request rejected
- Payment failure via x402 — HTTP 402 returned before processing
- Service unavailable or registry timeout — 5xx error

## 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 JSON object with identity data and a cryptographic signature from the Verifik registry, including document validity status and registered personal details for the given DUI number and date of birth combination.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "dateOfBirth",
  "documentNumber"
 ],
 "properties": {
  "dateOfBirth": {
   "type": "string",
   "description": "Parameter: dateOfBirth"
  },
  "documentNumber": {
   "type": "string",
   "description": "Parameter: documentNumber"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "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-el-salvador-dui-national-id-validation-d9079e43/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)