Install
via Positronick CLI
$positronick mcp install slack-mcp-server --run
Official
$git clone https://github.com/korotovsky/slack-mcp-server
The most powerful MCP Slack Server with no permission requirements, Apps support, GovSlack, DMs, Group DMs and smart history fetch logic. Install via `git clone` of the repository; no package install command was found in the source.