Slack
Updated
Official Slack MCP server for interactive and collaborative workflows. Surface insights, draft messages, and engage teams directly within Slack from Claude Code.
claude mcp add --transport http slack https://mcp.slack.com/mcp /plugin marketplace add anthropics/knowledge-work-plugins && /plugin install slack@knowledge-work-plugins Official remote Slack MCP server — built by Slack by Salesforce, Anthropic Verified.
What it does
Slack hosts an official remote MCP server at https://mcp.slack.com/mcp. Connecting Claude Code to it turns Slack into an interactive layer where AI-generated insights become team-visible work — generate channel summaries and digests, surface discussions and key themes, draft announcements and standup updates, and compose messages without leaving the editor.
How to connect
1. MCP direct
claude mcp add --transport http slack https://mcp.slack.com/mcpAfter adding, run /mcp inside Claude Code to get the OAuth link. Sign in to your Slack workspace in the browser to finish the connection.
2. Plugin marketplace
/plugin marketplace add anthropics/knowledge-work-plugins
/plugin install slack@knowledge-work-pluginsanthropics/knowledge-work-plugins is a separate marketplace, so add it first.
The plugin install bundles Slack-specific skills and slash commands on top of the MCP connection.
Features
- Search — find messages, files, users, and channels in natural language
- Messaging — send messages, fetch channel history, access thread conversations
- Canvas — author and share formatted documents with markdown export
- User Management — look up profiles, status, and custom fields
Use cases
- “Summarize the latest activity in #product” — surface what changed without reading every thread.
- “Generate my standup update from yesterday’s activity” — synthesize messages and threads into a ready-to-paste update.
- “Draft an announcement about the new release and prep it for #announcements” — compose and edit messages for Slack from inside the editor.
Notes
- Remote-hosted — no local MCP server to run.
- Requires Slack workspace admin OAuth approval; available capabilities depend on your workspace permissions.
- The plugin is free; Slack workspace pricing applies separately.
- OAuth-based, so fully headless/automated environments aren’t supported.
Frequently Asked Questions
What is the Slack MCP?
An official remote Slack MCP server hosted by Slack by Salesforce, Anthropic Verified. It turns Slack into an interactive layer where AI-generated insights become team-visible work — generate channel summaries, surface discussions, draft announcements, and compose messages from Claude Code.
Where does it run?
Claude Code CLI and Claude Desktop. The server is remote-hosted at `https://mcp.slack.com/mcp`, so no local MCP server is required.
How do I install it?
Two paths. MCP direct: `claude mcp add --transport http slack https://mcp.slack.com/mcp`. Plugin marketplace: `/plugin marketplace add anthropics/knowledge-work-plugins` then `/plugin install slack@knowledge-work-plugins`.
What can I automate with it?
Generate channel summaries and digests, surface discussions and key themes, draft announcements and standup updates, and compose messages for Slack. Search supports messages, files, users, and channels; Canvas documents are supported too.
Is it free?
The plugin is free. Slack workspace pricing applies separately.
What permissions does it need?
Slack workspace admin OAuth approval. Available capabilities depend on your workspace permission policies, and OAuth-based authentication means fully headless/automated environments aren't supported.