> **Building with AI coding agents?** If you're using an AI coding agent, install the official Scalekit plugin. It gives your agent full awareness of the Scalekit API — reducing hallucinations and enabling faster, more accurate code generation. > > - **Claude Code**: `/plugin marketplace add scalekit-inc/claude-code-authstack` then `/plugin install @scalekit-auth-stack` > - **GitHub Copilot CLI**: `copilot plugin marketplace add scalekit-inc/github-copilot-authstack` then `copilot plugin install @scalekit-auth-stack` > - **Codex**: run the bash installer, restart, then open Plugin Directory and enable `` > - **Skills CLI** (Windsurf, Cline, 40+ agents): `npx skills add scalekit-inc/skills --list` then `--skill ` > > `` / ``: `agent-auth`, `full-stack-auth`, `mcp-auth`, `modular-sso`, `modular-scim` — [Full setup guide](https://docs.scalekit.com/dev-kit/build-with-ai/) --- # Slack
Connect to Slack workspace. Send Messages as Bots or on behalf of users
Slack logo
Supports authentication: OAuth 2.0 ## Set up the agent connector ## Usage ## Tool list ## `slack_add_reaction` Add an emoji reaction to a message in Slack. Requires a valid Slack OAuth2 connection with reactions:write scope. | Name | Type | Required | Description | | --- | --- | --- | --- | | `channel` | string | Yes | Channel ID or channel name where the message exists | | `name` | string | Yes | Emoji name to react with (without colons) | | `timestamp` | string | Yes | Timestamp of the message to add reaction to | ## `slack_create_channel` Creates a new public or private channel in a Slack workspace. Requires a valid Slack OAuth2 connection with channels:manage scope for public channels or groups:write scope for private channels. | Name | Type | Required | Description | | --- | --- | --- | --- | | `is_private` | boolean | No | Create a private channel instead of public | | `name` | string | Yes | Name of the channel to create (without # prefix) | | `team_id` | string | No | Encoded team ID to create channel in (if using org tokens) | ## `slack_delete_message` Deletes a message from a Slack channel or direct message. Requires a valid Slack OAuth2 connection with chat:write scope. | Name | Type | Required | Description | | --- | --- | --- | --- | | `channel` | string | Yes | Channel ID, channel name (#general), or user ID for DM where the message was sent | | `ts` | string | Yes | Timestamp of the message to delete | ## `slack_fetch_conversation_history` Fetches conversation history from a Slack channel or direct message with pagination support. Requires a valid Slack OAuth2 connection with channels:history scope. | Name | Type | Required | Description | | --- | --- | --- | --- | | `channel` | string | Yes | Channel ID, channel name (#general), or user ID for DM | | `cursor` | string | No | Paginate through collections by cursor for pagination | | `latest` | string | No | End of time range of messages to include in results | | `limit` | integer | No | Number of messages to return (1-1000, default 100) | | `oldest` | string | No | Start of time range of messages to include in results | ## `slack_get_conversation_info` Retrieve information about a Slack channel, including metadata, settings, and member count. Requires a valid Slack OAuth2 connection with channels:read scope. | Name | Type | Required | Description | | --- | --- | --- | --- | | `channel` | string | Yes | Channel ID, channel name (#general), or user ID for DM | | `include_locale` | boolean | No | Set to true to include the locale for this conversation | | `include_num_members` | boolean | No | Set to true to include the member count for the conversation | ## `slack_get_conversation_replies` Retrieve replies to a specific message thread in a Slack channel or direct message. Requires a valid Slack OAuth2 connection with channels:history or groups:history scope. | Name | Type | Required | Description | | --- | --- | --- | --- | | `channel` | string | Yes | Channel ID, channel name (#general), or user ID for DM | | `cursor` | string | No | Pagination cursor for retrieving next page of results | | `inclusive` | boolean | No | Include messages with latest or oldest timestamp in results | | `latest` | string | No | End of time range of messages to include in results | | `limit` | integer | No | Number of messages to return (default 100, max 1000) | | `oldest` | string | No | Start of time range of messages to include in results | | `ts` | string | Yes | Timestamp of the parent message to get replies for | ## `slack_get_user_info` Retrieves detailed information about a specific Slack user, including profile data, status, and workspace information. Requires a valid Slack OAuth2 connection with users:read scope. | Name | Type | Required | Description | | --- | --- | --- | --- | | `include_locale` | boolean | No | Set to true to include locale information for the user | | `user` | string | Yes | User ID to get information about | ## `slack_get_user_presence` Gets the current presence status of a Slack user (active, away, etc.). Indicates whether the user is currently online and available. Requires a valid Slack OAuth2 connection with users:read scope. | Name | Type | Required | Description | | --- | --- | --- | --- | | `user` | string | Yes | User ID to check presence for | ## `slack_invite_users_to_channel` Invites one or more users to a Slack channel. Requires a valid Slack OAuth2 connection with channels:write scope for public channels or groups:write for private channels. | Name | Type | Required | Description | | --- | --- | --- | --- | | `channel` | string | Yes | Channel ID or channel name (#general) to invite users to | | `users` | string | Yes | Comma-separated list of user IDs to invite to the channel | ## `slack_join_conversation` Joins an existing Slack channel. The authenticated user will become a member of the channel. Requires a valid Slack OAuth2 connection with channels:write scope for public channels. | Name | Type | Required | Description | | --- | --- | --- | --- | | `channel` | string | Yes | Channel ID or channel name (#general) to join | ## `slack_leave_conversation` Leaves a Slack channel. The authenticated user will be removed from the channel and will no longer receive messages from it. Requires a valid Slack OAuth2 connection with channels:write scope for public channels or groups:write for private channels. | Name | Type | Required | Description | | --- | --- | --- | --- | | `channel` | string | Yes | Channel ID or channel name (#general) to leave | ## `slack_list_channels` List all public and private channels in a Slack workspace that the authenticated user has access to. Requires a valid Slack OAuth2 connection with channels:read, groups:read, mpim:read, and/or im:read scopes depending on conversation types needed. | Name | Type | Required | Description | | --- | --- | --- | --- | | `cursor` | string | No | Pagination cursor for retrieving next page of results | | `exclude_archived` | boolean | No | Exclude archived channels from the list | | `limit` | integer | No | Number of channels to return (default 100, max 1000) | | `team_id` | string | No | Encoded team ID to list channels for (optional) | | `types` | string | No | Mix and match channel types (public_channel, private_channel, mpim, im) | ## `slack_list_users` Lists all users in a Slack workspace, including information about their status, profile, and presence. Requires a valid Slack OAuth2 connection with users:read scope. | Name | Type | Required | Description | | --- | --- | --- | --- | | `cursor` | string | No | Pagination cursor for fetching additional pages of users | | `include_locale` | boolean | No | Set to true to include locale information for each user | | `limit` | number | No | Number of users to return (1-1000) | | `team_id` | string | No | Encoded team ID to list users for (if using org tokens) | ## `slack_lookup_user_by_email` Find a user by their registered email address in a Slack workspace. Requires a valid Slack OAuth2 connection with users:read.email scope. Cannot be used by custom bot users. | Name | Type | Required | Description | | --- | --- | --- | --- | | `email` | string | Yes | Email address to search for users by | ## `slack_pin_message` Pin a message to a Slack channel. Pinned messages are highlighted and easily accessible to channel members. Requires a valid Slack OAuth2 connection with pins:write scope. | Name | Type | Required | Description | | --- | --- | --- | --- | | `channel` | string | Yes | Channel ID or channel name where the message exists | | `timestamp` | string | Yes | Timestamp of the message to pin | ## `slack_send_message` Sends a message to a Slack channel or direct message. Requires a valid Slack OAuth2 connection with chat:write scope. | Name | Type | Required | Description | | --- | --- | --- | --- | | `attachments` | string | No | JSON-encoded array of attachment objects for additional message formatting | | `blocks` | string | No | JSON-encoded array of Block Kit block elements for rich message formatting | | `channel` | string | Yes | Channel ID, channel name (#general), or user ID for DM | | `reply_broadcast` | boolean | No | Used in conjunction with thread_ts to broadcast reply to channel | | `schema_version` | string | No | Optional schema version to use for tool execution | | `text` | string | Yes | Message text content | | `thread_ts` | string | No | Timestamp of parent message to reply in thread | | `tool_version` | string | No | Optional tool version to use for execution | | `unfurl_links` | boolean | No | Enable or disable link previews | | `unfurl_media` | boolean | No | Enable or disable media link previews | ## `slack_set_user_status` Set the user's custom status with text and emoji. This appears in their profile and can include an expiration time. Requires a valid Slack OAuth2 connection with users.profile:write scope. | Name | Type | Required | Description | | --- | --- | --- | --- | | `status_emoji` | string | No | Emoji to display with status (without colons) | | `status_expiration` | integer | No | Unix timestamp when status should expire | | `status_text` | string | No | Status text to display | ## `slack_update_message` Updates/edits a previously sent message in a Slack channel or direct message. Requires a valid Slack OAuth2 connection with chat:write scope. | Name | Type | Required | Description | | --- | --- | --- | --- | | `attachments` | string | No | JSON-encoded array of attachment objects for additional message formatting | | `blocks` | string | No | JSON-encoded array of Block Kit block elements for rich message formatting | | `channel` | string | Yes | Channel ID, channel name (#general), or user ID for DM where the message was sent | | `text` | string | No | New message text content | | `ts` | string | Yes | Timestamp of the message to update | --- ## More Scalekit documentation | Resource | What it contains | When to use it | |----------|-----------------|----------------| | [/llms.txt](/llms.txt) | Structured index with routing hints per product area | Start here — find which documentation set covers your topic before loading full content | | [/llms-full.txt](/llms-full.txt) | Complete documentation for all Scalekit products in one file | Use when you need exhaustive context across multiple products or when the topic spans several areas | | [sitemap-0.xml](https://docs.scalekit.com/sitemap-0.xml) | Full URL list of every documentation page | Use to discover specific page URLs you can fetch for targeted, page-level answers |