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Connect Slack to Claude

Give Claude governed access to Slack’s 37 tools through Runlayer, with identity, policy, scanning, and audit on every call.

Book a demo Claude setup guide

Set up

Add Slack to Claude in four steps

Admins approve the server once. Everyone in Claude then gets it through the same governed connection.

  1. 1

    Approve Slack in Runlayer

    Add Slack from the catalog and choose who can use it and which of its tools are allowed.

  2. 2

    Connect Claude to Runlayer

    Admins install the Runlayer Plugin for everyone from Claude’s admin plugin settings, or users add it themselves. With direct tool listing turned on for your deployment, Slack’s 37 tools show up in Claude’s own tool list.

    Claude setup guide
  3. 3

    Sign in to Slack

    Each user signs in to Slack with OAuth. Runlayer keeps the tokens out of the client’s configuration.

  4. 4

    Use Slack from Claude

    Slack’s approved tools appear in Claude. Every call is checked against policy and recorded.

Tools

37 Slack tools in Claude

Runlayer policy decides which of these Claude users can call. 5 read data only.

  • Add list record

    Adds a new record (row) to a Slack list.

  • Add reaction

    Adds a reaction (emoji) to a Slack message.

  • Complete file upload

    Finalizes a file upload started with slack_get_file_upload_url, using the file_id from that call.

  • Create canvas

    Creates a Slack Canvas document from Canvas-flavored Markdown content.

  • Create conversation

    Create a channel, DM, or group DM.

  • Create list

    Creates a new Slack List with optional columns and a description.

  • Get file upload URL

    Generates a signed upload URL for a file, plus a file ID.

  • Get reactions

    Retrieves all reactions (emoji) on a specific Slack message.

See all 37 Slack tools

Control

What Runlayer can see and stop in Claude

Some controls apply to every client at the gateway. Others depend on what Claude exposes to Runlayer.

  • Gateway policy (available)

    Every Slack call from Claude passes through Runlayer, where your policies can allow, alert, mask, or block it.

  • Audit trail (available)

    Each call is recorded with the user, Claude as the client, the tool, and the policy and scanner decisions.

  • Anthropic inference hooks (available)

    With Claude Enterprise, Anthropic sends each governed Claude prompt to Runlayer before inference, with nothing installed on devices (Anthropic beta).

  • Compliance API import (available)

    Anthropic Compliance API imports Claude web and desktop chats for review.

  • Managed browser extension (available)

    Managed Chrome, Edge, and Firefox deployments can monitor supported web-chat activity and apply prompt-time controls where the surface permits it.

  • Stop a call before it runs (available)

    Runlayer can reject a Claude prompt before Anthropic runs it, which stops the whole request rather than one tool call.

  • Block output after it runs (available)

    Because Runlayer checks the full prompt, tool results in it can be blocked before the model sees them.

  • Redact output in place (not available)

    Anthropic Inference hooks cannot return a rewritten prompt, so Runlayer cannot mask content in Claude. The gateway still applies policy to the call.

Frequently asked questions

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