Best MCP Servers for Slack (2026)

The best MCP servers for Slack — let AI agents read channels, search history, and post messages in your Slack workspace.

Top 10 · ranked by installs, upvotes, stars and views · refreshed hourly

  1. Why it’s hereMost popular in this category on AllMCPs

    Ingest anything from Slack, Discord, websites, Google Drive, Linear or GitHub into a Graphlit project - and then search and retrieve relevant knowledge within an MCP client like Cursor, Windsurf or Cline.

    Upvotes: 0Installs: 0GitHub stars: 378
    Install
  2. Skill Seekers logo

    #2 Skill Seekers

    skill-seekers

    Why it’s hereCommunity pick

    Transform 17 source types (docs, GitHub repos, PDFs, videos, Jupyter, Confluence, Notion, Slack/Discord) into AI-ready skills and RAG knowledge. 35 MCP tools for scraping, packaging, enhancing, and exporting to vector databases (Weaviate, Chroma, FAISS, Qdrant). Supports 16+ target platforms.

    Upvotes: 0Installs: 0GitHub stars: 15k
    Install
  3. Why it’s hereCommunity pick

    Permissioned search and cited answers over Slack, Drive, Gmail, Jira, and 50+ workplace sources.

    Upvotes: 0Installs: 0GitHub stars: 17
    Install
  4. Why it’s hereCommunity pick

    Your complete Slack context for Claude—DMs, channels, threads, search. No OAuth apps, no admin approval. --setup and done, 11 tools, auto-refresh.

    Upvotes: 0Installs: 0GitHub stars: 32
    Install
  5. Why it’s hereCommunity pick

    The open-source context layer for AI agents. PipesHub turns your company's knowledge (Slack, Drive, Jira, GitHub, Microsoft 365 and 40+ connectors) into a permission-aware workspace that agents can search, grep, navigate and cite. MCP, SDKs and built-in agents. Self-hosted.

    Upvotes: 0Installs: 0GitHub stars: 3.9k
    Install
  6. Why it’s hereCommunity pick

    The most powerful MCP server for Slack Workspaces.

    Upvotes: 0Installs: 0GitHub stars: 1.9k
    Install
  7. Anythink Cli logo

    #7 Anythink Cli

    anythink-cloud

    Why it’s hereCommunity pick

    Build and run a complete backend from your agent on the Anythink platform: relational data with row-/field-level security, full-text + semantic + geo search, RBAC + BYOK, a workflow/automation engine, a growth & retention engine (email, actionable push, promotions, per-user referral codes + rewards, points/credits), payments + marketplace billing, and a growing catalog of integrations (Claude, OpenAI, Slack, Google, GitHub…) — driven through one CLI-backed MCP tool. Install with npx -y @anythink-cloud/mcp.

    Upvotes: 0Installs: 0GitHub stars: 6
    Install
  8. Why it’s hereCommunity pick

    Open-source LLM knowledge base for teams. 28-tool native MCP server turns Slack/Discord/Teams/Mattermost chat into a typed knowledge graph + auto-generated wiki with cited answers, semantic search, expert finding, and decision tracing. BYO LLM via LiteLLM, Apache 2.0, on-prem via Docker.

    Upvotes: 0Installs: 0GitHub stars: 451
    Install
  9. Why it’s hereCommunity pick

    Read and write Slack with session tokens — no OAuth, no bot, no admin approval.

    Upvotes: 0Installs: 0GitHub stars: 2
    Install
  10. Why it’s hereCommunity pick

    Free, local MCP server that audits ClickUp, Slack & Teams for work that slipped through.

    Upvotes: 0Installs: 0GitHub stars: 3
    Install

Which Slack MCP server should you use?

When choosing a Model Context Protocol server for Slack, select verified or official listings if you need strict API security guarantees. For rapid local dev testing with Claude or Cursor, community-maintained tools offer zero-setup configuration blocks ready to copy-paste.

Frequently asked questions about Slack MCP servers

What is the best Slack MCP server?

This page ranks Slack MCP servers by real usage across the AllMCPs directory so you can pick a proven one.

Can an agent post messages to Slack?

Yes, with a Slack bot token scoped to the channels and actions you allow. Limit the token to specific channels rather than the whole workspace.

How do I set up a Slack MCP server?

Create a Slack app, add the scopes you need, install it to your workspace, and give the MCP server the bot token via an environment variable.