---
title: "Send MFA PIN"
method: GET
path: "/api/auth/pin/send/{mfaOption}"
tags: ["Authentication"]
---

# Send MFA PIN

`GET /api/auth/pin/send/{mfaOption}`

## Request

- Base URL: `https://api.sponsorunited.com` (the document declares no server; this is the origin it was published from)
- URL: `https://api.sponsorunited.com/api/auth/pin/send/{mfaOption}`
- Auth: HTTP bearer
- TypeScript: <https://skmtc.dev/sponsorunited/apis/sponsorunited-api/docs/api/auth/pin/send/:mfaOption/get.ts> (a function with typed inputs; its response is checked against the schema)

Generates and sends a login PIN via the specified method (email or SMS). Requires a valid JWT token from the initial login.

## Path parameters

- `mfaOption` 'email' | 'sms'

## Response `200`

PIN sent successfully

- SendPinResponse
  - `retries_left` integer: Number of PIN verification attempts remaining
  - `message` string: Status message

## Other responses

- `401`: User not authorized
- `429`: Maximum attempts reached
- `500`: Could not send PIN
- `503`: Authentication gateway unavailable

---

[API](https://skmtc.dev/sponsorunited/apis/sponsorunited-api.md) - [All operations](https://skmtc.dev/sponsorunited/apis/sponsorunited-api/llms.txt) - [OpenAPI document](https://skmtc.dev/sponsorunited/apis/sponsorunited-api/revisions/cbf1ca5bff8f?raw)