Search Slack for Past Decisions and Conversations
Find specific messages, decisions, or discussions across your Slack workspace without manual scrolling.
Find and Look Up Slack Users
Look up team members in your Slack workspace to find their username, status, or contact details.
Quick answer: Use the Slack tool through ToolRouter to find and look up slack users directly from Claude, ChatGPT, Microsoft Copilot, and OpenClaw — connect once, then drive it with plain-language prompts. No code required.
ToolIn a large workspace, knowing someone's exact Slack username — the version you need to @mention them or send them a direct message — is surprisingly hard without a reliable way to search the user directory. Spelling their name slightly differently or guessing their handle wastes time and sometimes mentions the wrong person entirely.
The find_user and list_users skills let you look up workspace members by name, email, or role to get their exact Slack username, display name, status, and profile information. You can find a specific person or list all members of the workspace.
Managers adding new team members to channels, agents routing messages to the right person, and anyone onboarding to a new workspace use this to find the right Slack handle without guessing.
How to find and look up slack users with Claude, ChatGPT, Microsoft Copilot, and OpenClaw
Connect ToolRouter
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
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.
How to find and look up slack users
Once connected (see setup above), use the Slack tool — the same steps work with Claude, ChatGPT, Microsoft Copilot, OpenClaw, and any MCP client:
- 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 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
Frequently Asked Questions
How do I find and look up slack users with an AI assistant?
Look up team members in your Slack workspace to find their username, status, or contact details. Connect the Slack tool to Claude, ChatGPT, Microsoft Copilot, and OpenClaw through ToolRouter, then ask the assistant in plain language. For example: Ask: "Find the Slack user for someone named [name]" Claude searches the workspace and returns the matching user profile
Which AI assistants can find and look up slack users?
Claude, ChatGPT, Microsoft Copilot, and OpenClaw can all find and look up slack users using the Slack tool through ToolRouter, with no API keys or coding required.
What does the Slack tool do?
Read, send, and search Slack messages across your workspace.
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