MCP server · Slack
Slack MCP Server
⚠ No independent security audit: entries summarize official sources only. Review permissions and code before installing.
- Type
- MCP server
- Tasks
- Knowledge & memoryDocs & writing
- Compatible agents
- Claude Code, Claude.ai, Cursor, Codex, Perplexity, Pi (source: partner clients and harness setup sections in Slack's official docs (docs.slack.dev/ai/slack-mcp-server))
- Verdict
- Pick it when the agent should find past decisions in Slack or post updates and canvases for you; it can send messages as you, so grant only the scopes you need and keep admin approval on.
- Permissions
- Acts as you in Slack with the user-token scopes you grant: searches messages, files, channels and users, reads channels and threads, sends and schedules messages, adds reactions, creates channels, creates and edits canvases and lists, and uploads files.
- Credentials
- Slack OAuth (user token) through a Slack Marketplace or internal app; a workspace admin must approve the MCP integration.
- Maintenance
- Hosted remote server (no public source); official Slack plugin slackapi/slack-skills-plugin released v1.5.0 on 2026-10-19
- License
- Not stated (hosted service; the MIT slack-skills-plugin repo only holds the client plugin)
- Install
- Connect to https://mcp.slack.com/mcp (Streamable HTTP, OAuth). Claude Code: `/plugin install slack@claude-plugins-official` (recommended) or `claude mcp add --transport http --scope local slack https://mcp.slack.com/mcp`, then `/mcp`; Codex: `codex mcp add --transport http slack https://mcp.slack.com/mcp`. Official install docs ↗
- Source
- https://docs.slack.dev/ai/slack-mcp-server/
- Verified on
- 2026-10-22
Compared in: Best MCP servers for Docs & writing
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