S
Slack
by Slack Technologies
Send and receive messages, manage channels, and interact with users in Slack workspaces
CommunicationFree / PaidOAuth 2.0messagingcollaborationteam-chatnotifications
How agents use Slack
- ✓Agent sends a Slack message when a workflow step completes, fails, or needs human review
- ✓Agent reads a support channel and triggers a response sequence on incoming messages
- ✓Agent escalates to a human via Slack when its confidence score drops below a threshold
- ✓Agent posts structured summaries — daily reports, alerts, or pipeline results — to a dedicated channel
- ✓Agent reacts to a message to acknowledge receipt before processing a request
Agent actions
Send MessageSend a message to a channel or user
Inputs: channel, message, attachments
Returns: messageId, channel
Read MessagesRead messages from a channel
Inputs: channel, limit
Returns: messages
List ChannelsGet list of channels in the workspace
Returns: channels
Get UsersGet list of users in the workspace
Returns: users
React to MessageAdd emoji reaction to a message
Inputs: channel, timestamp, emoji
Returns: success
Example workflows
1
Notify team on task completion
Send a message to #general when an agent completes a task
2
Monitor specific channel
Read messages from #support channel to trigger agent responses
About Slack
- Vendor
- Slack Technologies
- Pricing Always review details with the vendor
- Free / Paid — Free for basic features, paid plans for advanced features
- Authentication
- OAuth 2.0
- Rate limit Always review details with the vendor
- 60 requests / minute
- Compatible nodes
- AgentResourceOutput
- Website
- https://slack.com
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