Slack MCP Server
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| SLACK_TEAM_ID | Yes | Your Slack workspace ID that starts with T | |
| SLACK_BOT_TOKEN | Yes | Bot User OAuth Token that starts with xoxb- |
Schema
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| slack_list_channels | List public channels in the workspace with pagination |
| slack_post_message | Post a new message to a Slack channel |
| slack_reply_to_thread | Reply to a specific message thread in Slack |
| slack_add_reaction | Add a reaction emoji to a message |
| slack_get_channel_history | Get recent messages from a channel |
| slack_get_thread_replies | Get all replies in a message thread |
| slack_get_users | Get a list of all users in the workspace with their basic profile information |
| slack_get_user_profile | Get detailed profile information for a specific user |