> ## Documentation Index
> Fetch the complete documentation index at: https://docs.hyperauth.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# POST /api/verify/send

> Sends a one-time verification code to a user's identifier through the selected channel — email via Resend or SMS via Twilio Verify — during registration.

Sends a verification code to the identifier via the specified channel. Email is delivered via Resend; SMS via Twilio Verify.

## Request body

| Field        | Type     | Required | Description                   |
| ------------ | -------- | -------- | ----------------------------- |
| `identifier` | `string` | Yes      | Email address or phone number |
| `channel`    | `string` | Yes      | `"email"` or `"sms"`          |

## Response (200)

```json theme={null}
{ "ok": true, "channel": "email" }
```

## Errors

| Code  | `error`                                           | Condition                                                                                                                   |
| ----- | ------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------- |
| `400` | `"Missing required fields: identifier, channel"`  | Field absent                                                                                                                |
| `400` | `"Invalid channel. Must be \"sms\" or \"email\""` | Unknown channel                                                                                                             |
| `429` | `"rate_limited"`                                  | IP exceeded `MAX_VERIFY_SENDS_PER_IP` (3/day) or identifier exceeded `RATE_LIMIT_CODES_PER_IDENTIFIER` (5/hour, email only) |
| `502` | `"sms_send_failed"`                               | Twilio API error                                                                                                            |
| `502` | `"email_send_failed"`                             | Resend API error                                                                                                            |