> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.ada.cx/reference/conversations/update-channel/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.ada.cx/_mcp/server.

# Update a channel

PATCH https://example.ada.support/api/v2/channels/{channel_id}
Content-Type: application/json

Update a channel's capabilities. Only custom channels can be updated; native channels are read-only.

Reference: https://docs.ada.cx/reference/conversations/update-channel

## Authentication

- `Authorization` header (bearer token, required) — Bearer authentication of the form `Bearer <token>`, where token is your auth token.

## Request

### Path parameters

- `channel_id` (string, required) — The ID of the channel to update

### Body (application/json)

This endpoint expects an UpdateChannel.

- `capabilities` (UpdateChannelCapabilities, required) — Capabilities to update. Only the fields you include are changed; omitted fields keep their current value.

## Response

### 200

Channel updated

- `description` (string, required) — A description of the channel
- `modality` (enum, required) — The modality of the channel
  - Allowed values: `messaging`, `email`, `voice`, `sms`
- `name` (string, required) — The name of the channel
- `capabilities` (BaseChannelCapabilities, optional) — What the channel's surface can render. The AI Agent tailors replies to the declared capabilities. Omitted fields default to false. Read-only on native channels, whose capabilities are fixed by the surface.
- `created_at` (string, optional) — The date and time the channel was created
- `id` (string, optional) — The channel ID
- `metadata` (map from string to CustomChannelMetadata, optional) — A dictionary of key, value pairs assigned to the channel. Metadata may not exceed 4KB total. - `metadata` keys may only be of type: `string` - `metadata` values may only be one of type: `string`, `boolean`, `integer`, or `number` (float)
- `type` (enum, optional) — The type of the channel
  - Allowed values: `custom`

## Errors

### 400 Bad Request Error

Bad Request

- `errors` (list of ErrorsErrorsItems, required) — A list of errors

### 401 Unauthorized Error

Unauthorized

- `errors` (list of ErrorsErrorsItems, required) — A list of errors

### 404 Not Found Error

Not Found

- `errors` (list of ErrorsErrorsItems, required) — A list of errors

### 429 Too Many Requests Error

Too Many Requests

- `errors` (list of ErrorsErrorsItems, required) — A list of errors

### 500 Internal Server Error

Internal Server Error

- `errors` (list of ErrorsErrorsItems, required) — A list of errors

## Types

### UpdateChannelCapabilities

Capabilities to update. Only the fields you include are changed; omitted fields keep their current value.

- `markdown` (boolean, optional) — Preserve Markdown (bold, italic, and links) in replies instead of flattening to plain text.
- `quick_replies` (boolean, optional) — Deliver the tappable options of a Playbook Ask step as a `quick_replies` message instead of listing them in the reply's text. Applies to conversations created after the capability is set. Only a channel with the `messaging` modality can set it; the request is rejected on other modalities. Custom channels only: native channels always report false because Ada manages their message rendering.

### BaseChannelCapabilities

What the channel's surface can render. The AI Agent tailors replies to the declared capabilities. Omitted fields default to false. Read-only on native channels, whose capabilities are fixed by the surface.

- `markdown` (boolean, optional, default: false) — Preserve Markdown (bold, italic, and links) in replies instead of flattening to plain text.
- `quick_replies` (boolean, optional, default: false) — Deliver the tappable options of a Playbook Ask step as a `quick_replies` message instead of listing them in the reply's text. Applies to conversations created after the capability is set. Only a channel with the `messaging` modality can set it; the request is rejected on other modalities. Custom channels only: native channels always report false because Ada manages their message rendering.

### CustomChannelMetadata

### ErrorsErrorsItems

- `type` (string, required) — The error type
- `message` (string, required) — The error message
- `details` (string, optional, nullable) — Extra information about the error

## Examples

**Request**

```json
{
  "capabilities": {
    "markdown": true,
    "quick_replies": true
  }
}
```

**Response**

```json
{
  "description": "A custom messaging channel for my AI Agent",
  "modality": "messaging",
  "name": "My Custom Channel",
  "capabilities": {
    "markdown": true,
    "quick_replies": true
  },
  "created_at": "2020-09-20T00:00:00+00:00",
  "id": "5df263b7db5a7e6ea03fae9b",
  "metadata": {
    "example_key1": "example_string_value",
    "example_key2": true,
    "example_key3": 123,
    "example_key4": 0.95
  },
  "type": "custom"
}
```

**SDK Code**

```python
import requests

url = "https://example.ada.support/api/v2/channels/channel_id"

payload = { "capabilities": {
        "markdown": True,
        "quick_replies": True
    } }
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.json())
```

```javascript
const url = 'https://example.ada.support/api/v2/channels/channel_id';
const options = {
  method: 'PATCH',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: '{"capabilities":{"markdown":true,"quick_replies":true}}'
};

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

```go
package main

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

func main() {

	url := "https://example.ada.support/api/v2/channels/channel_id"

	payload := strings.NewReader("{\n  \"capabilities\": {\n    \"markdown\": true,\n    \"quick_replies\": true\n  }\n}")

	req, _ := http.NewRequest("PATCH", 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
require 'uri'
require 'net/http'

url = URI("https://example.ada.support/api/v2/channels/channel_id")

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

request = Net::HTTP::Patch.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"capabilities\": {\n    \"markdown\": true,\n    \"quick_replies\": true\n  }\n}"

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

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

HttpResponse<String> response = Unirest.patch("https://example.ada.support/api/v2/channels/channel_id")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"capabilities\": {\n    \"markdown\": true,\n    \"quick_replies\": true\n  }\n}")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('PATCH', 'https://example.ada.support/api/v2/channels/channel_id', [
  'body' => '{
  "capabilities": {
    "markdown": true,
    "quick_replies": true
  }
}',
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'Content-Type' => 'application/json',
  ],
]);

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

```csharp
using RestSharp;

var client = new RestClient("https://example.ada.support/api/v2/channels/channel_id");
var request = new RestRequest(Method.PATCH);
request.AddHeader("Authorization", "Bearer <token>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"capabilities\": {\n    \"markdown\": true,\n    \"quick_replies\": true\n  }\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = [
  "Authorization": "Bearer <token>",
  "Content-Type": "application/json"
]
let parameters = ["capabilities": [
    "markdown": true,
    "quick_replies": true
  ]] as [String : Any]

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

let request = NSMutableURLRequest(url: NSURL(string: "https://example.ada.support/api/v2/channels/channel_id")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "PATCH"
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()
```