---
title: "List the participants of a call"
method: GET
path: "/v3/voice/calls/{id}/participants"
tags: ["Voice"]
---

# List the participants of a call

`GET /v3/voice/calls/{id}/participants`

## Request

- Base URL: `https://api.sent.dm`
- URL: `https://api.sent.dm/v3/voice/calls/{id}/participants`
- Auth: one of:
  - API key in header `x-api-key`
  - HTTP bearer

Lists who is in the conference room one of your live calls is in: each participant's own call id, who they are, whether the room mutes them, and how long they have been connected. The call itself is one of the participants. Use a participant's id to mute or remove them; it is also a call id, so GET /v3/voice/calls/{id} accepts it. A call that has ended answers 409, as does a call that is not in a conference.

## Path parameters

- `id` string, required

## Headers

- `x-profile-id` string, uuid

## Response `200`

The participants of the room the call is in; empty once everyone has left

- SentDmServicesEndpointsCustomerAPIv3SharedApiResponseOfListOfCallParticipantResponse: Standard API response envelope for all v3 endpoints
  - `success` boolean: Indicates whether the request was successful
  - `data` SentDmServicesEndpointsCustomerAPIv3VoiceCallsResponsesCallParticipantResponse[], nullable: The response data (null if error)
    - `id` string: The participant's own call id: what the mute and remove endpoints take, and what GET /v3/voice/calls/{id} accepts
    - `kind` string: user for one of your app users, number for a phone number, anonymous for a caller who withheld their number
    - `value` string, nullable: The app user's identity or the phone number in E.164 format. Null when the kind is anonymous
    - `muted` boolean: True while the room mutes this participant
    - `duration_seconds` integer: How long the participant has been connected to the room, in seconds
  - `error` SentDmServicesEndpointsCustomerAPIv3SharedApiError: Error information
    - `code` string: Machine-readable error code (e.g., "RESOURCE_001")
    - `message` string: Human-readable error message
    - `details` object, nullable: Additional validation error details (field-level errors)
    - `doc_url` string, nullable: URL to documentation about this error
  - `meta` SentDmServicesEndpointsCustomerAPIv3SharedApiMeta: Request and response metadata
    - `request_id` string: Unique identifier for this request (for tracing and support)
    - `timestamp` string, date-time: Server timestamp when the response was generated
    - `version` string: API version used for this request

## Other responses

- `400`: The id is not a call id
- `401`: Unauthorized - Invalid API credentials
- `403`: Forbidden
- `404`: No call with this id belongs to your account
- `409`: The call has already ended, or is not in a conference
- `500`: Internal server error

## Changes

- **2026-10-23** `1a451bbb5736`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/sentdm/apis/sent-dm-api-v3/changes/v3/voice/calls/:id/participants/get.md)

---

[API](https://skmtc.dev/sentdm/apis/sent-dm-api-v3.md) - [All operations](https://skmtc.dev/sentdm/apis/sent-dm-api-v3/llms.txt) - [OpenAPI document](https://skmtc.dev/sentdm/apis/sent-dm-api-v3/revisions/bdcca958cac7?raw)