Slack MCP Server provides a bridge between AI assistants and Slack's messaging platform, enabling access to conversation history from Slack channels. Developed by Dmitrii Korotovskii, this Go implementation authenticates with Slack using XOXC and XOXD tokens, handling the necessary HTTP transport customization to maintain session cookies. The server supports both stdio and SSE transport modes, includes API key authentication for secure access, and offers optional HTTP proxy and custom CA certificate configuration. Particularly useful for AI assistants that need to analyze, reference, or work with team communications stored in Slack channels without requiring direct Slack API integration.
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Highlight AIGet messages from the channel (or DM) by channel_id. Parameters: channel_id (string, required), include_activity_messages (boolean, default: false), cursor (string, optional), limit (string, default: '1d').
Get a thread of messages posted to a conversation by channelID and thread_ts. Parameters: channel_id (string, required), thread_ts (string, required), include_activity_messages (boolean, default: false), cursor (string, optional), limit (string, default: '1d').
Add a message to a public channel, private channel, or direct message conversation by channel_id and thread_ts. Parameters: channel_id (string, required), thread_ts (string, optional), payload (string, required), content_type (string, default: 'text/markdown').
Search messages in a public channel, private channel, or direct message conversation using filters. Parameters: search_query (string, optional), filter_in_channel (string, optional), filter_in_im_or_mpim (string, optional), filter_users_with (string, optional), filter_users_from (string, optional), filter_date_before (string, optional), filter_date_after (string, optional), filter_date_on (string, optional), filter_date_during (string, optional), filter_threads_only (boolean, default: false), cursor (string, default: ''), limit (number, default: 20).
Get list of channels. Parameters: channel_types (string, required), sort (string, optional), limit (number, default: 100), cursor (string, optional).
