Slack Emoji API

Slack's Emoji API lets apps discover and manage a workspace's custom emoji. The core method, emoji.list (requires the emoji:read scope), returns a name-to-URL map of all custom emoji along with aliases (noted as alias:other_name) and a cache timestamp to help clients sync efficiently. Apps can also subscribe to the emoji_changed event to stay up to date when emoji are added, renamed, or removed. On Enterprise Grid, org admins get additional admin.emoji.* methods to programmatically add, rename, alias, or remove custom emoji with appropriate admin scopes. The API focuses on metadata and management of custom emoji (not standard Unicode emoji) and is separate from reactions APIs, which use emoji but are managed through different endpoints.