KosmoKrator

productivity

Slack MCP, CLI, and Lua Integration for AI Agents

Slack integration docs for AI agents: MCP gateway setup, Slack CLI commands, Lua API reference, credentials, and function schemas.

25 functions 13 read 12 write API token auth
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Slack for agents

Credentials can be configured manually in web or CLI hosts.

Use this integration from Lua code mode, the headless integrations CLI, or the KosmoKrator MCP gateway. The same package metadata powers all three surfaces.

Machine-Readable Metadata
integration_slug
slack
route_slug
slack
package
slack
auth_strategy
api_token API token
cli_setup_supported
true
cli_runtime_supported
true
mcp_gateway_supported
true
lua_supported
true
supports_multi_account
true

Quick Links

Lua APIAgent-facing namespace and function reference. Slack CLIHeadless setup and direct function calls. Slack MCPMCP gateway setup for external clients. Submit feedbackReport missing tools, auth problems, wrong docs, or runtime issues. ContributeAdd tools or improve metadata in the integrations repo.

Slack MCP Client Matrix

Use these pages when a specific agent client or framework needs copy-pasteable MCP setup for Slack.

Claude Code Slack MCP setup for Claude Code. Cursor Slack MCP setup for Cursor. Codex Slack MCP setup for Codex. OpenAI Agents Slack MCP setup for OpenAI Agents SDK. Claude Agent SDK Slack MCP setup for Claude Agent SDK. Vercel AI SDK Slack MCP setup for Vercel AI SDK. LangChain Slack MCP setup for LangChain. LangGraph Slack MCP setup for LangGraph. CrewAI Slack MCP setup for CrewAI. MCP clients Slack MCP setup for Generic MCP Clients.

Slack CLI Matrix

Use these pages for direct Slack CLI workflows in scripts, CI, cron, and agent wrappers.

CI Slack CLI for CI. Cron Jobs Slack CLI for cron jobs. Shell Scripts Slack CLI for shell scripts. Headless Automation Slack CLI for headless automation. Coding Agents Slack CLI for coding agents.

Function Catalog

FunctionTypeParametersDescription
slack.slack_send_message Write write 7 Send a message to a Slack channel or DM. Supports text, blocks, and thread replies.
slack.slack_update_message Write write 4 Update an existing Slack message.
slack.slack_delete_message Write write 2 Delete a message from a Slack channel.
slack.slack_get_message Read read 3 Get a specific message by its timestamp. Optionally fetch a message within a thread.
slack.slack_search_messages Read read 5 Search for messages across all Slack channels and DMs.
slack.slack_get_permalink Read read 2 Get a permalink URL for a specific Slack message.
slack.slack_get_channel_history Read read 5 Get message history for a Slack channel. Supports pagination with cursors.
slack.slack_get_thread_replies Read read 4 Get all replies in a Slack message thread.
slack.slack_list_channels Read read 4 List all Slack channels the bot has access to.
slack.slack_get_channel Read read 1 Get detailed information about a Slack channel.
slack.slack_create_channel Write write 2 Create a new Slack channel.
slack.slack_set_topic Write write 2 Set the topic for a Slack channel.
slack.slack_set_purpose Write write 2 Set the purpose for a Slack channel.
slack.slack_archive_channel Write write 1 Archive a Slack channel.
slack.slack_invite_to_channel Write write 2 Invite one or more users to a Slack channel.
slack.slack_upload_file Write write 6 Upload a file to Slack using the modern external upload flow. The file content is posted to a channel or as a thread reply.
slack.slack_list_files Read read 5 List files in Slack, optionally filtered by channel, user, or file type.
slack.slack_get_file Read read 1 Get detailed information about a Slack file.
slack.slack_list_users Read read 3 List all users in the Slack workspace.
slack.slack_get_user Read read 1 Get detailed information about a Slack user by their user ID.
slack.slack_find_user_by_email Read read 1 Look up a Slack user by their email address.
slack.slack_add_reaction Write write 3 Add an emoji reaction to a Slack message.
slack.slack_remove_reaction Write write 3 Remove an emoji reaction from a Slack message.
slack.slack_list_usergroups Read read 3 List all usergroups in the Slack workspace.
slack.slack_update_usergroup_members Write write 2 Update the members of a Slack usergroup.