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Set an existing guest, regular user, or owner to be an admin user.

An MCP tool from the Slack API server, hosted on mcp.hjlabs.in.

Set an existing guest, regular user, or owner to be an admin user. [POST /admin.users.setAdmin]

Name on the gateway: slack_api__admin_users_set_admin · may change things.

Parameters

NameTypeDescription
team_id requiredstringThe ID (T1234) of the workspace.
user_id requiredstringThe ID of the user to designate as an admin.

How to call it

Through the Smart Gateway, any client can run it by name with call_tool, or let the gateway find it with search_tools:

call_tool arguments
{
  "name": "slack_api__admin_users_set_admin",
  "arguments": {
    "team_id": "…",
    "user_id": "…"
  }
}

Or connect the Slack API server directly, which lists 174 tools including this one:

Run in your terminal
claude mcp add --transport http hj-slack-api https://mcp.hjlabs.in/mcp/slack-api \
  --header "Authorization: Bearer YOUR_API_KEY"

Try asking

Use the set an existing guest, regular user, or owner to be an admin user. tool with team_id set to ….

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