---
title: "Add subscribers to a list"
method: POST
path: "/lists/{list_id}/subscriptions"
tags: ["Lists"]
---

# Add subscribers to a list

`POST /lists/{list_id}/subscriptions`

Subscribes additional users to the list, without modifying existing subscriptions. If the list does not exist, it will be automatically created.

## Path parameters

- `list_id` string, required

## Headers

- `Idempotency-Key` string
- `x-idempotency-expiration` string

## Request body

- object
  - `recipients` PutSubscriptionsRecipient[], required
    - `recipientId` string, required
    - `preferences` RecipientPreferences
      - `categories` NotificationPreferences
      - `notifications` NotificationPreferences

## Response `202`

## Other responses

- `204`
- `400`

---

[API](https://skmtc.net/trycourier/apis/courier.md) · [All operations](https://skmtc.net/trycourier/apis/courier/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/trycourier/courier/versions/04f69fbf96a5/schema)