Best Slack MCP Servers
Slack is a collaboration hub that connects your organization's people, information, and tools. It's a platform for team communication where work flows seamlessly between direct messaging, group conversations, and dedicated channels for projects, topics, or teams.
Why this server?
Allows ingestion of content from Slack channels into Graphlit for search and retrieval
AsecurityAlicense-qualityThe Model Context Protocol (MCP) Server enables integration between MCP clients and the Graphlit service. Ingest anything from Slack to Gmail to podcast feeds, in addition to web crawling, into a Graphlit project - and then retrieve relevant contents from the MCP client.Last updated 3 months ago469373MITWhy this server?
Allows sending notifications and alerts to Slack channels, particularly for sharing operational information such as Kubernetes pod status
Why this server?
Provides access to Hackle's A/B testing data through the Hackle Slack Community, where users can request API keys for the MCP Server

hackle-mcpofficial
AsecurityAlicense-qualityA Model Context Protocol server for Hackle API providing tools and resources for querying A/B Test data.Last updated a year ago191802MITWhy this server?
Enables Slack bots to react with expressive kaomoji and ASCII art that match the conversation mood, eliminating the need for custom emoji uploads.
Why this server?
Mentioned as a support channel for troubleshooting issues with the MCP server through the Shortcut community Slack.

Shortcut MCP Serverofficial
AsecurityAlicense-qualityA Model Context Protocol (MCP) server that integrates Shortcut project management with AI tools like Cursor, Windsurf, and Claude Code, allowing direct access to Shortcut data via API token.Last updated 2 days ago4212,11097MITWhy this server?
Enables sending messages and managing Slack workspace interactions via internal web APIs.
AsecurityAlicenseAqualityOpen-source MCP server that gives AI agents access to 100+ web applications through the user's authenticated browser session. No API keys, no screenshots, no DOM scraping — talks directly to web app internal APIs via a Chrome extension. Supports Slack, Discord, GitHub, Jira, Notion, Reddit, X, and 100+ more services with ~2,000 tools. Works with Claude Code, Cursor, Windsurf, and any MCP client.Last updated a day ago42293MITWhy this server?
Posts safety alerts and operator notifications to Slack channels using incoming webhooks for real-time monitoring of flagged content.
AsecurityAlicenseAqualityIt's a safety middleware that can detect and intercept self-harm and criminal intent at 3 stages. It allows developers of chat-based platforms to configure webhook notifications and store encrypted information for prior mitigation of any such cases.Last updated 6 days ago31Apache 2.0Why this server?
References community access through Slack for support and collaboration with other users.

Semgrep MCP Serverofficial
AsecurityAlicense-qualityAn MCP server that provides a comprehensive interface to Semgrep, enabling users to scan code for security vulnerabilities, create custom rules, and analyze scan results through the Model Context Protocol.Last updated 5 months ago6645MITWhy this server?
Facilitates human-in-the-loop approvals by posting action requests to Slack, allowing users to authorize or block agent actions directly from a workspace.