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List users on call.

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

List users on call. List all of the users on call in a given schedule for a given time range. A Schedule determines the time periods that users are On-Call. For more information see the API Concepts Document Scoped… [GET /schedules/{id}/users]

Name on the gateway: pagerduty_api__list_schedule_users · read-only.

Parameters

NameTypeDescription
id requiredstringThe ID of the schedule.
sincestringThe start of the date range over which you want to search.
untilstringThe end of the date range over which you want to search.

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": "pagerduty_api__list_schedule_users",
  "arguments": {
    "id": "…"
  }
}

Or connect the PagerDuty API server directly, which lists 459 tools including this one:

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

Try asking

Use the list users on call. tool with id set to ….

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