# Certn API Documentation

> Source: https://centric-api-docs.certn.co/#check-ONE_ID_2

### OneID

**OneID**

**Identifier:** `ONE_ID_2`

OneID is a secure and instant online identity verification solution, utilizing government-issued ID documents and a selfie to authenticate an applicant’s identity remotely.

### Response

**201 Created** — Successfully ordered. Use the returned `id` to retrieve the full case via `GET /api/public/cases/{id}/`.

### Error codes

| Status | Type | Description |
|--------|------|-------------|
| 400 | `validation_error` | Invalid request data |
| 401 | `client_error` | Authentication failed |
| 403 | `client_error` | Permission denied |
| 422 | `validation_error` | Request validation failed (e.g. missing required fields) |