Slack

Learn how to use Klavis to connect your AI application to Slack MCP Server

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For Developer

Follow the instructions below to integrate Slack MCP server to your AI application using our API or SDK.

Prerequisites

• Create an API key

1. Create a Slack MCP Server

Use the following endpoint to create a new remote Slack MCP server instance:

Request

Python

from klavis import Klavis
from klavis.types import McpServerName

klavis_client = Klavis(api_key="<YOUR_API_KEY>")

# Create a Slack MCP server instance
slack_server = klavis_client.mcp_server.create_server_instance(
    server_name=McpServerName.SLACK,
    user_id="<YOUR_USER_ID>",
    platform_name="<YOUR_PLATFORM_NAME>",
)

Response

SDK Response

{
  "serverUrl": "https://slack-mcp-server.klavis.ai/mcp/?instance_id=<instance-id>",
  "instanceId": "<instance-id>",
  "oauthUrl": "https://api.klavis.ai/oauth/slack/authorize?instance_id=<instance-id>"
}

serverUrl specifies the endpoint of the Slack MCP server, which allows you to interact with Slack workspaces and channels.

instanceId is used to get an authentication token. After you complete the OAuth flow, this token allows the MCP server to access Slack on your behalf.

2. Slack OAuth Flow

Redirect users to the OAuth authorization flow:

Python

import webbrowser

webbrowser.open(slack_server.oauth_url)

Watch the Example

Explore MCP Server Tools

Tools Information

Tool Name	Description
User Tools
slack_user_list_channels	List all channels the authenticated user has access to (public, private, DMs, multi-party DMs)
slack_get_channel_history	Get recent messages from a channel
slack_invite_users_to_channel	Invite one or more users (including bot users) to a Slack channel
slack_list_users	Lists all users in a Slack team
slack_user_get_info	Gets information about a specific user
slack_user_search_messages	Searches for messages matching a query with user permissions
slack_user_post_message	Post a new message to a Slack channel as a user
slack_user_reply_to_thread	Reply to a specific message thread in Slack as a user
slack_user_add_reaction	Add a reaction emoji to a message as a user
Bot Tools
slack_bot_post_message	Post a new message to a Slack channel as a bot
slack_bot_reply_to_thread	Reply to a specific message thread in Slack as a bot
slack_bot_add_reaction	Add a reaction emoji to a message as a bot

For more details about tool input schema, use the list_tool API.