---
title: "POST /lists/members/create_all.json"
method: POST
path: "/lists/members/create_all.json"
---

# POST /lists/members/create_all.json

`POST /lists/members/create_all.json`

Adds multiple
members to a list, by specifying a comma-separated list of member ids or screen names. The
authenticated user must own the list to be able to add members to it. Note that lists can't have
more than 500 members, and you are limited to adding up to 100 members to a list at a time with this
method.

Please note that there can be issues with lists that rapidly remove and add memberships. Take care
when using these methods such that you are not too rapidly switching between removals and adds on
the same list.

## Response `200`

Successful Response

---

[API](https://skmtc.net/mfullbrook/apis/legacy.md) · [All operations](https://skmtc.net/mfullbrook/apis/legacy/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/mfullbrook/legacy/versions/0293423507bb/schema)