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For Enterprise Grid workspaces, map local user IDs to global user IDs

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

For Enterprise Grid workspaces, map local user IDs to global user IDs [GET /migration.exchange]

Name on the gateway: slack_api__migration_exchange · read-only.

Parameters

Name	Type	Description
`token` required	`string`	Authentication token. Requires scope: tokens.basic
`users` required	`string`	A comma-separated list of user ids, up to 400 per request
`team_id`	`string`	Specify team_id starts with T in case of Org Token
`to_old`	`boolean`	Specify true to convert W global user IDs to workspace-specific U IDs.…

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__migration_exchange",
  "arguments": {
    "token": "…",
    "users": "…"
  }
}

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"

Use the for enterprise grid workspaces, map local user ids to global user ids tool with token set to ….