The Slack MCP Server project provides a server interface for interacting with Slack workspaces through the Slack API. It allows users to perform various operations such as listing channels, posting messages, replying to threads, adding reactions, retrieving channel history, accessing thread replies, and obtaining user profiles. This functionality is valuable for automating Slack interactions, managing communication within workspaces, and integrating Slack with other services or bots like Claude. The project is particularly useful for developers looking to enhance their Slack workspace interactions programmatically, offering a comprehensive set of tools to manage and engage with Slack channels and users efficiently.
List public channels in the workspace. Optional inputs: limit (number, default: 100, max: 200), cursor (string). Returns: List of channels with their IDs and information.
Post a new message to a Slack channel. Required inputs: channel_id (string), text (string). Returns: Message posting confirmation and timestamp.
Reply to a specific message thread. Required inputs: channel_id (string), thread_ts (string), text (string). Returns: Reply confirmation and timestamp.
Add an emoji reaction to a message. Required inputs: channel_id (string), timestamp (string), reaction (string). Returns: Reaction confirmation.
Get recent messages from a channel. Required inputs: channel_id (string). Optional inputs: limit (number, default: 10). Returns: List of messages with their content and metadata.
Get all replies in a message thread. Required inputs: channel_id (string), thread_ts (string). Returns: List of replies with their content and metadata.
Get list of workspace users with basic profile information. Optional inputs: cursor (string), limit (number, default: 100, max: 200). Returns: List of users with their basic profiles.
Get detailed profile information for a specific user. Required inputs: user_id (string). Returns: Detailed user profile information.
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Highlight AIAfter downloading, you can run the MCP server in any client or IDE:
node path/to/downloaded/file.mjs