Slack MCP Server
Reference MCP server for Slack — read channels, post messages, and manage threads from an agent.
Slack MCP Server is a reference MCP server for Slack — read channels, post messages, and manage threads from an agent. Open-source reference implementation of the Model Context Protocol for Slack.
About Slack MCP Server
Slack MCP Server is an MCP server that lets an agent read channels, post messages, and manage threads in Slack, built as an open-source reference implementation of the Model Context Protocol.
It runs locally on macOS, Windows, and Linux through a command-line interface and is free to use with no paid tier.
It fits developers who want an MCP-compatible agent to work inside a Slack workspace and are willing to provision and manage their own Slack API credentials. Expect its reach to be bounded by that workspace's permissions and Slack's API rate limits.
As a reference implementation, it is a baseline Slack MCP connector rather than a packaged or managed one.
Sources: this listing
Slack MCP Server pros and cons
Pros
- Open-source reference implementation of the Model Context Protocol for Slack.
- Enables reading channels, posting messages, and managing threads from an MCP-compatible agent.
- Runs locally on macOS, Windows, and Linux through a command-line interface.
- Free to use with no paid pricing tier.
Cons
- Requires the user to provision and manage their own Slack API credentials.
- Functionality is bounded by Slack workspace permissions and API rate limits.
Tagged
- Supports Claude
- CLI
- MCP Support
- Free
- Open Source
Slack MCP Server alternatives
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Related reading
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</a>Frequently asked questions
- What is Slack MCP Server?
- Slack MCP Server is a reference MCP server for Slack — read channels, post messages, and manage threads from an agent.
- Is Slack MCP Server free?
- Slack MCP Server is free to use. There is no paid tier as of the last index update.
- What platforms does Slack MCP Server support?
- Slack MCP Server runs on mac, win, linux, cli.
- What are the alternatives to Slack MCP Server?
- Similar tools in MCP Servers on vibedonalds: Notion MCP Server, Linear MCP Server, Sentry MCP Server, Puppeteer MCP Server.
- What are the downsides of Slack MCP Server?
- Requires the user to provision and manage their own Slack API credentials. Functionality is bounded by Slack workspace permissions and API rate limits.