This page lists all HTTP APIs for working with groups, including accepting join requests and listing group memberships.
Open Cloud APIs
Open Cloud v2
Develop
Base URL
https://apis.roblox.com/legacy-develop
Groups
Base URL
https://apis.roblox.com/legacy-groups
Legacy APIs
Develop v1
Base URL
https://develop.roblox.com
Games v2
Base URL
https://games.roblox.com
Games v1
Base URL
https://games.roblox.com
Groups v2
Base URL
https://groups.roblox.com
Groups v1
Base URL
https://groups.roblox.com
Thumbnails v1
Base URL
https://thumbnails.roblox.com