> For complete lifecycle-event payload schemas and examples, use the canonical overview: Session /api/sessions; Room lifecycle, members, and room playback /api/rooms; Session playback /api/playback; Recording /api/recording; DTMF /api/keypad-input; Messages /api/messages; WebSocket Session /api/web-socket. Use /api/event-delivery for transport behavior. Endpoint pages name relevant events, but these overviews are the canonical references.

# Add a session to the room

POST https://api.telekesher.dev/api/v1/rooms/{room_id}/members
Content-Type: application/json

**Rate limit: Per room** · **Burst:** 100 · **Refill:** 30 req/s

Add a session as a [room member](/api/room-members). Omit `muted` to
join unmuted.

A `202` response with `status: joining` confirms that the join request was
accepted. Membership is not yet complete.

Exactly one of these outcomes applies:

- If the session is not in another room, the new join starts.
- If the session is already in this room, the response is `200` with
  `status: already_joined`; another join is not started.
- If the session has completed joining another room, it is removed from that
  room before the new join starts.
- If the session is still joining another room, the response is `409`.

**Triggered webhooks:**

- `room.member.joined` is emitted after membership in the target room is
  confirmed.
- Moving a session also emits `room.member.left` for the previous room.

See [Room lifecycle, member, and playback events](/api/rooms#lifecycle-member-and-playback-events) for complete payload schemas and examples.

Reference: https://docs.vorbal.dev/api/room-members/add

## Authentication

- `Authorization` header (bearer token, required) — Application auth. Send `Authorization: Bearer <app_uuid>:<api_key>` using any active key in the app's collection. See [Authentication](https://voice-platform.docs.buildwithfern.com/api/authentication) for details.

## Request

### Path parameters

- `room_id` (string, required) — Case-sensitive [room](/api/rooms) identifier.

### Headers

- `Idempotency-Key` (string, optional) — Optional key for safely retrying mutating requests. See [Idempotency](https://voice-platform.docs.buildwithfern.com/idempotency) for details.

### Body (application/json)

- `session_uuid` (string, required) — Identifies the session to add. This is the same session UUID that `GET /api/v1/rooms/{room_id}/members` returns.
- `muted` (boolean, optional) — Controls whether the member joins muted. Omit this field or set it to `false` to join the member unmuted.

## Response

### 200

Session already joined to this room (idempotent)

- `room_id` (string, required)
- `status` (enum, required)
  - Allowed values: `joining`

### 202

Joining room

- `room_id` (string, required)
- `status` (enum, required)
  - Allowed values: `joining`

## Examples

### Room Members_addRoomMember_example

**Request**

```json
{
  "session_uuid": "acW68-f47ac10b-58cc-4372-a567-0e02b2c3d479",
  "muted": false
}
```

**Response**

```json
{
  "room_id": "string",
  "status": "already_joined"
}
```

**SDK Code**

```python Room Members_addRoomMember_example
import requests

url = "https://api.telekesher.dev/api/v1/rooms/room_id/members"

payload = {
    "session_uuid": "acW68-f47ac10b-58cc-4372-a567-0e02b2c3d479",
    "muted": False
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.json())
```

```javascript Room Members_addRoomMember_example
const url = 'https://api.telekesher.dev/api/v1/rooms/room_id/members';
const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: '{"session_uuid":"acW68-f47ac10b-58cc-4372-a567-0e02b2c3d479","muted":false}'
};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```

```go Room Members_addRoomMember_example
package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.telekesher.dev/api/v1/rooms/room_id/members"

	payload := strings.NewReader("{\n  \"session_uuid\": \"acW68-f47ac10b-58cc-4372-a567-0e02b2c3d479\",\n  \"muted\": false\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(res)
	fmt.Println(string(body))

}
```

```ruby Room Members_addRoomMember_example
require 'uri'
require 'net/http'

url = URI("https://api.telekesher.dev/api/v1/rooms/room_id/members")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"session_uuid\": \"acW68-f47ac10b-58cc-4372-a567-0e02b2c3d479\",\n  \"muted\": false\n}"

response = http.request(request)
puts response.read_body
```

```java Room Members_addRoomMember_example
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.post("https://api.telekesher.dev/api/v1/rooms/room_id/members")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"session_uuid\": \"acW68-f47ac10b-58cc-4372-a567-0e02b2c3d479\",\n  \"muted\": false\n}")
  .asString();
```

```php Room Members_addRoomMember_example
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api.telekesher.dev/api/v1/rooms/room_id/members', [
  'body' => '{
  "session_uuid": "acW68-f47ac10b-58cc-4372-a567-0e02b2c3d479",
  "muted": false
}',
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'Content-Type' => 'application/json',
  ],
]);

echo $response->getBody();
```

```csharp Room Members_addRoomMember_example
using RestSharp;

var client = new RestClient("https://api.telekesher.dev/api/v1/rooms/room_id/members");
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Bearer <token>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"session_uuid\": \"acW68-f47ac10b-58cc-4372-a567-0e02b2c3d479\",\n  \"muted\": false\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift Room Members_addRoomMember_example
import Foundation

let headers = [
  "Authorization": "Bearer <token>",
  "Content-Type": "application/json"
]
let parameters = [
  "session_uuid": "acW68-f47ac10b-58cc-4372-a567-0e02b2c3d479",
  "muted": false
] as [String : Any]

let postData = JSONSerialization.data(withJSONObject: parameters, options: [])

let request = NSMutableURLRequest(url: NSURL(string: "https://api.telekesher.dev/api/v1/rooms/room_id/members")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "POST"
request.allHTTPHeaderFields = headers
request.httpBody = postData as Data

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```

### Room Members_addRoomMember_example

**Request**

```json
{
  "session_uuid": "acW68-f47ac10b-58cc-4372-a567-0e02b2c3d479",
  "muted": false
}
```

**Response**

```json
{
  "room_id": "string",
  "status": "joining"
}
```

**SDK Code**

```python Room Members_addRoomMember_example
import requests

url = "https://api.telekesher.dev/api/v1/rooms/room_id/members"

payload = {
    "session_uuid": "acW68-f47ac10b-58cc-4372-a567-0e02b2c3d479",
    "muted": False
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.json())
```

```javascript Room Members_addRoomMember_example
const url = 'https://api.telekesher.dev/api/v1/rooms/room_id/members';
const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: '{"session_uuid":"acW68-f47ac10b-58cc-4372-a567-0e02b2c3d479","muted":false}'
};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```

```go Room Members_addRoomMember_example
package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.telekesher.dev/api/v1/rooms/room_id/members"

	payload := strings.NewReader("{\n  \"session_uuid\": \"acW68-f47ac10b-58cc-4372-a567-0e02b2c3d479\",\n  \"muted\": false\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(res)
	fmt.Println(string(body))

}
```

```ruby Room Members_addRoomMember_example
require 'uri'
require 'net/http'

url = URI("https://api.telekesher.dev/api/v1/rooms/room_id/members")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"session_uuid\": \"acW68-f47ac10b-58cc-4372-a567-0e02b2c3d479\",\n  \"muted\": false\n}"

response = http.request(request)
puts response.read_body
```

```java Room Members_addRoomMember_example
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.post("https://api.telekesher.dev/api/v1/rooms/room_id/members")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"session_uuid\": \"acW68-f47ac10b-58cc-4372-a567-0e02b2c3d479\",\n  \"muted\": false\n}")
  .asString();
```

```php Room Members_addRoomMember_example
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api.telekesher.dev/api/v1/rooms/room_id/members', [
  'body' => '{
  "session_uuid": "acW68-f47ac10b-58cc-4372-a567-0e02b2c3d479",
  "muted": false
}',
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'Content-Type' => 'application/json',
  ],
]);

echo $response->getBody();
```

```csharp Room Members_addRoomMember_example
using RestSharp;

var client = new RestClient("https://api.telekesher.dev/api/v1/rooms/room_id/members");
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Bearer <token>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"session_uuid\": \"acW68-f47ac10b-58cc-4372-a567-0e02b2c3d479\",\n  \"muted\": false\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift Room Members_addRoomMember_example
import Foundation

let headers = [
  "Authorization": "Bearer <token>",
  "Content-Type": "application/json"
]
let parameters = [
  "session_uuid": "acW68-f47ac10b-58cc-4372-a567-0e02b2c3d479",
  "muted": false
] as [String : Any]

let postData = JSONSerialization.data(withJSONObject: parameters, options: [])

let request = NSMutableURLRequest(url: NSURL(string: "https://api.telekesher.dev/api/v1/rooms/room_id/members")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "POST"
request.allHTTPHeaderFields = headers
request.httpBody = postData as Data

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```