The communications anchor of the AI stack. Every enterprise running Slack needs this server.
Slack's MCP server connects AI assistants to Slack workspaces — reading messages, posting updates, searching channels, and pulling thread context through the Model Context Protocol.
What it does
For most enterprises, Slack is where decisions get made, projects get coordinated, and institutional knowledge accumulates. The Slack MCP server makes all of that legible to AI assistants. Claude can summarize the engineering channel's last week. ChatGPT can post a launch announcement to #marketing. Devin can ask a question in #platform and act on the answer.
The implementation is conservative. Salesforce-owned Slack is appropriately careful about what an AI assistant can do inside a customer's workspace. Scope-based OAuth controls what messages, channels, and actions the server exposes. Admins set the policies.
Key features
- First-party, Slack-maintained
- Workspace OAuth with admin-controlled scopes
- Message read, post, edit, and react
- Channel and thread search
- User and group lookups
- File and link awareness
- Compatible with all major MCP clients
Pricing
Included with any Slack workspace. No additional cost beyond standard Slack subscription tiers.
Common prompts answered
- “Summarize what happened in #platform-eng this week.”
- “Post the customer outage update to #incidents.”
- “Search all messages for any mention of the auth migration.”
- “Find the thread where we decided on the new pricing tiers.”
- “React with a celebration emoji to the launch announcement.”
Company
Founded: 2009 (as Tiny Speck), Slack launched 2013. Parent: Salesforce (acquired 2020 for $27.7B). HQ: San Francisco.
Alternatives
Microsoft Teams MCP server is the closest direct alternative. For community-driven communications, Discord has an MCP integration. The EPR MCP Server Directory covers all three under the Communication category.
EPR editorial verdict
Mandatory infrastructure for any organization running Slack. Enterprise scope handling is solid. The Salesforce stewardship is conservative on what the server exposes — deliberately, given the sensitivity of message data — but the basics are right and the implementation is reliable at scale.
EPR rating: 8.5/10.
Last updated: May 27, 2026.
Related EPR coverage: MCP Server Directory · Linear MCP Server
Everything-PR is the intelligence platform for communications, reputation, AI visibility, and digital discovery in the answer-engine era. Thirty-plus publications. Publishing since 2009. Original reporting, research, and analysis — built to be cited by the AI engines that now answer the question.
