Slack

MCP

Messaging

8 tools

Send messages, read channels, and manage conversations in Slack

Installation

Install the typed integration package for your language:

Terminal

$ npm install @leash/integration-slack

Authentication

Set SLACK_BOT_TOKEN — Create a Slack app at api.slack.com, add Bot Token Scopes, install to workspace, copy the Bot User OAuth Token (xoxb-...). Also set SLACK_TEAM_ID.

Usage

import { LeashIntegrations } from '@leash/sdk'
import { createSlackClient } from '@leash/integration-slack'

const leash = new LeashIntegrations()
const client = createSlackClient(leash)

const result = await client.slackPostMessage()

Available Tools

Tool	Description
`slack_post_message`	Post a message to a channel
`slack_reply_to_thread`	Reply to a message thread
`slack_add_reaction`	Add an emoji reaction to a message
`slack_get_channel_history`	Get recent messages from a channel
`slack_get_thread_replies`	Get all replies in a thread
`slack_list_channels`	List all channels in the workspace
`slack_get_users`	List all users in the workspace
`slack_get_user_profile`	Get a user profile by ID