Slack Local FAQs

Question 1

What is Slack Local MCP?

Accepted Answer

Slack Local MCP is a lightweight Model Context Protocol server designed for personal Slack automation. It uses cookie-based authentication to directly control your workspace actions without requiring complex Slack app or bot setup.

Question 2

How does Slack Local authenticate with my Slack workspace?

Accepted Answer

It uses cookie-based authentication, specifically your Slack web session 'd' cookie. This allows for quick, direct connection to your personal workspace, eliminating the need for OAuth or bot tokens for core actions.

Question 3

What actions can I automate with Slack Local?

Accepted Answer

You can send messages to channels, DMs, or threads; fetch channel messages and thread replies for summarization; and add emoji reactions to messages. Message scheduling is available but requires a bot token, not cookie auth.

Question 4

Is Slack Local suitable for team-wide deployments or production?

Accepted Answer

Slack Local is ideal for personal automation and local development due to its direct cookie-based authentication. For production use cases or team-wide deployments requiring broader permissions, OAuth-based Slack MCP servers are recommended.

Question 5

How do I ensure the security of my Slack cookie with Slack Local?

Accepted Answer

Your Slack web cookie provides full access to your workspace, so it's crucial to handle it carefully. Keep its value private, avoid exposing it publicly, and ensure your local environment is secure.

Slack Local

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