Provides tools for interacting with Slack, allowing AI agents to list channels, read conversations and replies, post messages, search messages, manage users, add/remove reactions, and manage user groups.
Click on "Install Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type @ followed by the MCP server name and your instructions, e.g., "@cyber-slack What channels are in our Slack workspace?"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
Slack CLI and MCP server for AI agents. Follows the AXI (API + CLI + MCP) pattern.
npm install -g cyber-slack
# or
pnpm add -g cyber-slackRelated MCP server: Slack Max API MCP
Set SLACK_TOKEN (user token) or SLACK_BOT_TOKEN (bot token):
# User token (xoxp-) - full access including search
export SLACK_TOKEN=xoxp-your-token-here
# Or bot token (xoxb-) - limited access, no search
export SLACK_BOT_TOKEN=xoxb-your-token-hereIf both are set, SLACK_TOKEN takes precedence.
Go to api.slack.com/apps and create a new app
Under "OAuth & Permissions", add the required scopes:
chat:write - Post messages
channels:read - List channels
channels:history - Read channel history
users:read - List users
users:read.email - Read user emails
search:read - Search messages (user token only)
reactions:write - Add/remove reactions
usergroups:read - List user groups
usergroups:write - Create/update user groups
Install the app to your workspace
Copy the "Bot User OAuth Token" or "User OAuth Token"
cyber-slack # show auth status
cyber-slack mcp # start MCP server
# Channels
cyber-slack channels list # list public channels
cyber-slack channels list -t public_channel,private_channel
# Conversations
cyber-slack conversations history <channel>
cyber-slack conversations replies <channel> <thread_ts>
cyber-slack conversations post <channel> "message"
cyber-slack conversations search "query" # requires user token
# Users
cyber-slack users list
cyber-slack users info <user_id>
cyber-slack users search "query"
# Reactions
cyber-slack reactions add <channel> <timestamp> thumbsup
cyber-slack reactions remove <channel> <timestamp> thumbsup
# User Groups
cyber-slack usergroups list
cyber-slack usergroups create "Team Name" --handle team
cyber-slack usergroups update <group_id> --name "New Name"
cyber-slack usergroups set-users <group_id> U123,U456Tool | Description | Token |
| List channels (public, private, DM, group) | Bot/User |
| Get message history from a channel | Bot/User |
| Get thread replies | Bot/User |
| Post a message | Bot/User |
| Search messages with modifiers | User |
| List workspace users | Bot/User |
| Get user details | Bot/User |
| Search users by name/email | Bot/User |
| Add emoji reaction | Bot/User |
| Remove emoji reaction | Bot/User |
| List user groups | Bot/User |
| Create user group | User |
| Update user group | User |
| Set group members | User |
Add to your MCP configuration:
{
"mcpServers": {
"cyber-slack": {
"command": "npx",
"args": ["cyber-slack", "mcp"],
"env": {
"SLACK_TOKEN": "${SLACK_TOKEN}"
}
}
}
}Or if installed globally:
{
"mcpServers": {
"cyber-slack": {
"command": "cyber-slack",
"args": ["mcp"],
"env": {
"SLACK_TOKEN": "${SLACK_TOKEN}"
}
}
}
}MIT
This server cannot be installed
Unclaimed servers have limited discoverability.
If you are the server author, to access and configure the admin panel.
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