Slack MCP Server

Slack's MCP server equips AI agents to post messages, read channel discussions, summarize threads, search communication histories, and schedule messages in Slack. It enables agents to act as interactive workplace assistants, answer team questions from channel context, and broadcast automated operational alerts.

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Slack MCP Server

Benefits with Ory + Slack MCP Server

Slack's MCP server lets your agents search messages and files, read channels and threads, and send or schedule messages in your Slack workspace. A message an agent posts can appear under a user's name. Ory Agent Security lets assistants search conversations while posting stays with the agents you approve, and every message is attributed to the user and agent behind it.

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Use Cases

— 01 use case

Agent IAM

Summarizers read at Read, posting agents get Write, Admin adds nothing beyond that today, and Block keeps agents that should never see Slack away.

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Core Functionality

— 04 capabilities

Read, write, admin, or no access
Ory Agent Security classifies every tool on the Slack MCP server as read, write, or admin, so you can give each user, team, or agent type only the level it needs: read for assistants that search conversations, write for agents allowed to post as their user, and no access for agents that shouldn't see internal conversations.
Enforced before execution
Ory Agent Security checks each tool call against the user, the agent acting for them, and any sub-agent inside the agent harness, so a denied message stops before it reaches Slack, with nothing to roll back and no gateway to deploy.
Observe, then enforce
Observe mode shows which agents post and in whose name without blocking anything, so you can apply Ory's pre-built policy for the Slack MCP server and enforce it on your own schedule.
Complete audit trail
Every allow and deny decision on the Slack MCP server streams to your SIEM through OpenTelemetry with the user, agent, and action attached, so you can show which agent sent a message under a user's name.