---
title: "Opt In"
method: POST
path: "/v1/referrals/opt-in"
tags: ["referrals"]
---

# Opt In

`POST /v1/referrals/opt-in`

## Request

- Base URL: `https://api.usekeel.io` (the document declares no server; this is the origin it was published from)
- URL: `https://api.usekeel.io/v1/referrals/opt-in`
- Auth: none declared

Opt in to receive referral payouts by submitting a wallet address.

Requires feature:referral_payouts (starter+ plans).

## Headers

- `Authorization` string, nullable
- `X-Org-Id` string, nullable

## Request body

- OptInRequest
  - `wallet_address` string, required

## Response `200`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/usekeel/apis/keel-api.md) · [All operations](https://skmtc.dev/usekeel/apis/keel-api/llms.txt) · [OpenAPI document](https://skmtc.dev/usekeel/apis/keel-api/revisions/3191ca10b0ab?raw)