---
title: "Get open-registration groups, group types, and ancestor groups by org. Roles: public."
method: GET
path: "/api/memberships/{membershipId}/groups/open"
tags: ["Groups", "Organizations"]
---

# Get open-registration groups, group types, and ancestor groups by org. Roles: public.

`GET /api/memberships/{membershipId}/groups/open`

## Path parameters

- `membershipId` integer, required

## Response `200`

OK

- GroupsResponseGroupFull
  - `success` boolean
  - `error` string
  - `groups` GroupFull[]
    - `audit` Audit
      - `createdTime` string, date-time
      - `modifiedTime` string, date-time
      - `modifiedBy` string
    - `groupId` integer
    - `groupType` GroupTypeCore
      - `audit` Audit
        - `createdTime` string, date-time
        - `modifiedTime` string, date-time
        - `modifiedBy` string
      - `groupTypeId` integer
      - `membershipId` integer
      - `name` string
      - `namePlural` string
      - `description` string
      - `properties` GroupTypeProperties
        - `announcementsHtml` string
        - `chatEnabled` boolean
        - `chatDefaultEnabled` boolean
        - `contactSharingDefaultEnabled` boolean
        - `postsEnabled` boolean
        - `postsDefaultEnabled` boolean
      - `root` boolean
      - `external` boolean
      - `isPrivate` boolean
    - `membershipId` integer
    - `name` string
    - `properties` GroupProperties
      - `chatEnabled` boolean
      - `postsEnabled` boolean
    - `nodeActive` boolean
    - `ancestryActive` boolean
    - `active` boolean
    - `root` boolean
    - `external` boolean
    - `externalReferenceId` string
    - `parentGroup` GroupFull — recursive

## Other responses

- `400` — Bad request
- `401` — Unauthorized
- `403` — Forbidden
- `404` — Not found
- `500` — Internal server error

## Changes

- **2026-09-02** `870f28ba2607` — 5 info
  - added the optional property `error/errorId` to the response with the `400` status
  - added the optional property `error/errorId` to the response with the `401` status
  - added the optional property `error/errorId` to the response with the `403` status
  - added the optional property `error/errorId` to the response with the `404` status
  - …1 more

[Change history](https://skmtc.dev/mobilecoach/apis/untitled-api/changes/api/memberships/:membershipId/groups/open/get.md)

---

[API](https://skmtc.dev/mobilecoach/apis/untitled-api.md) · [All operations](https://skmtc.dev/mobilecoach/apis/untitled-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/mobilecoach/untitled-api/revisions/f2568e11c0ab/schema)