Slack MCP server
The team comms layer for agents.
The Slack MCP server lets your agent read channels and threads, post messages and replies, add reactions, and look up users — so it can participate in the team's conversations, not just observe them.
Who it’s for: Teams who want an agent that can report, notify, and respond directly in Slack.
Local MCP server — runs on your machine via the command below.
The real tool surface, each labeled by risk. Full trust breakdown on the server page · safety review: Is Slack MCP safe?.
| Tool | Risk |
|---|---|
| slack_list_channels List public channels in the workspace. | read |
| slack_get_channel_history Read recent messages in a channel. | read |
| slack_get_thread_replies Read replies in a thread. | read |
| slack_get_users List workspace users. | read |
| slack_get_user_profile Get a user's profile. | read |
| slack_post_message Post a message to a channel. | write |
| slack_reply_to_thread Reply to a message thread. | write |
| slack_add_reaction Add an emoji reaction to a message. | write |
The write/destructive access this server can exercise, from its verified tools.
What is Slack MCP?
The Slack MCP server lets your agent read channels and threads, post messages and replies, add reactions, and look up users — so it can participate in the team's conversations, not just observe them.
Who is Slack for?
Teams who want an agent that can report, notify, and respond directly in Slack.
What tools does Slack expose?
Slack exposes 8 verified tools, including slack_list_channels, slack_get_channel_history, slack_get_thread_replies, slack_get_users, slack_get_user_profile, slack_post_message. Each is labeled by read / write / destructive risk on this page.
How do I connect Slack to my agent?
Slack runs locally over stdio. Add it to your MCP client config: claude mcp add slack -- npx -y @modelcontextprotocol/server-slack.
Does Slack require authentication?
Yes — Slack authenticates with Bot token. You connect your own account, and it acts only within the scopes you grant.
How much does Slack cost?
Free with a Slack workspace.
Is Slack verified on MCPExplorer?
Yes — Slack is hand-checked and featured on MCPExplorer. We pull its real tool surface, required scopes, and risk labels from the live index so you can see exactly what it does before connecting.
Other MCP servers worth a look.
Slack is featured on MCPExplorer. Add this badge to Slack’s site or README — it links back to this page.
HTML — for your website
Markdown — for a README
Set up Slack and put it to work — Free with a Slack workspace. Or see its full verified profile.