---
title: "Changes to Add Watchlist Members"
method: POST
path: "/v1/watchlists/{watchlist_id}/members"
---

# Changes to Add Watchlist Members

`POST /v1/watchlists/{watchlist_id}/members`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 5 of 27 revisions.

- **2026-11-03** `3732aea08430`: 1 info
- **2026-09-24** `5e27be09032e`: 1 info
- **2026-09-14** `1318dc57d3b2`: 1 info
- **2026-08-28** `c3a987e5f6ab`: 1 info
- **2026-08-05** `0f4eceac44fb`: 1 info

## Changes

- **2026-11-03** `3732aea08430`: 1 info
  - added the optional property `members/items/open_datetime` to the response with the `200` status
- **2026-09-24** `5e27be09032e`: 1 info
  - added the optional property `members/items/event_subtitle` to the response with the `200` status
- **2026-09-14** `1318dc57d3b2`: 1 info
  - added the new optional request property `flipped`
- **2026-08-28** `c3a987e5f6ab`: 1 info
  - added the optional property `members/items/flip` to the response with the `200` status
- **2026-08-05** `0f4eceac44fb`: 1 info
  - added the optional property `members/items/event_market_count` to the response with the `200` status

---

[Operation](https://skmtc.dev/rivermarkets/apis/river-finance-api/docs/v1/watchlists/:watchlist_id/members/post.md) - [API](https://skmtc.dev/rivermarkets/apis/river-finance-api.md) - [Page](https://skmtc.dev/rivermarkets/apis/river-finance-api/changes/v1/watchlists/:watchlist_id/members/post)