How to Find Slack Users with Claude
Find Slack users with Claude and ToolRouter. Look up team members by name or email in your workspace.
Tool
Claude looks up Slack users by name or description and returns their exact handle and profile details. Useful when you want to @mention someone or send a direct message but are not sure of their exact username.
Connect ToolRouter to Claude
1Open connector settings Open Settings
2Add a custom connector with these details
Name
ToolRouterURL
https://api.toolrouter.com/mcp3Let Claude set you up Open Claude
Steps
Once connected (see setup above), use the Slack tool:
- Ask: "Find the Slack user for someone named [name]"
- Claude searches the workspace and returns the matching user profile
- Ask: "What is their current status?"
- Use the username to send a message or add them to a channel
Example Prompt
Try this with Claude using the Slack tool
Find the Slack user for Sarah Johnson on my team and tell me her username and current status.
Tips
- Search by first name, last name, or email if you are unsure of the full name
- Ask Claude to list all users with a specific job title or role if you need to find the right person by function
- Check someone's status before sending a message — it tells you if they are available or away