## Documentation Index

Fetch the complete documentation index at: [/llms.txt](https://docs.cognigy.com/llms.txt)

Use this file to discover all available pages before exploring further.

### Update a Keyphrase

**Endpoint:**

`PATCH /v2.0/lexicons/{lexiconId}/keyphrases/{keyphraseId}`

**Example Requests:**

**cURL**
```bash
curl --request PATCH \
  --url https://api-trial.cognigy.ai/new/v2.0/lexicons/{lexiconId}/keyphrases/{keyphraseId} \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: <api-key>' \
  --data '
{
  "name": "food",
  "isMainKeyphrase": true
}
'```

**Python**
```python
import requests

url = "https://api-trial.cognigy.ai/new/v2.0/lexicons/{lexiconId}/keyphrases/{keyphraseId}"

payload = {
    "name": "food",
    "isMainKeyphrase": True
}
headers = {
    "X-API-Key": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)
```

**JavaScript (Fetch)**
```javascript
const options = {
  method: 'PATCH',
  headers: {'X-API-Key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({name: 'food', isMainKeyphrase: true})
};

fetch('https://api-trial.cognigy.ai/new/v2.0/lexicons/{lexiconId}/keyphrases/{keyphraseId}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));
```

**PHP**
```php
$curl = curl_init();

curl_setopt_array($curl, [\
  CURLOPT_URL => "https://api-trial.cognigy.ai/new/v2.0/lexicons/{lexiconId}/keyphrases/{keyphraseId}",\
  CURLOPT_RETURNTRANSFER => true,\
  CURLOPT_ENCODING => "",\
  CURLOPT_MAXREDIRS => 10,\
  CURLOPT_TIMEOUT => 30,\
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,\
  CURLOPT_CUSTOMREQUEST => "PATCH",\
  CURLOPT_POSTFIELDS => json_encode([\
    'name' => 'food',\
    'isMainKeyphrase' => true\
  ]),\
  CURLOPT_HTTPHEADER => [\
    "Content-Type: application/json",\
    "X-API-Key: <api-key>"\
  ],\
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}
```

**Go**
```go
package main

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

func main() {

url := "https://api-trial.cognigy.ai/new/v2.0/lexicons/{lexiconId}/keyphrases/{keyphraseId}"

payload := strings.NewReader("{\n  \"name\": \"food\",\n  \"isMainKeyphrase\": true\n}")

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

req.Header.Add("X-API-Key", "<api-key>")
	req.Header.Add("Content-Type", "application/json")

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

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

fmt.Println(string(body))
}
```

**Java (Unirest)**
```java
HttpResponse<String> response = Unirest.patch("https://api-trial.cognigy.ai/new/v2.0/lexicons/{lexiconId}/keyphrases/{keyphraseId}")
  .header("X-API-Key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"name\": \"food\",\n  \"isMainKeyphrase\": true\n}")
  .asString();
```

**Ruby**
```ruby
require 'uri'
require 'net/http'

url = URI("https://api-trial.cognigy.ai/new/v2.0/lexicons/{lexiconId}/keyphrases/{keyphraseId}")

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

request = Net::HTTP::Patch.new(url)
request["X-API-Key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"name\": \"food\",\n  \"isMainKeyphrase\": true\n}"

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

### Response Codes
- `204`: Successfully updated Keyphrase.

### Error Codes
- `400`: Bad Request
- `401`: Unauthorized
- `403`: Forbidden
- `404`: Not Found
- `500`: Internal Server Error

### Authorization
- **X-API-Key**
  - Type: string
  - Location: header  
  - Required: Supply the API Key in the HTTP-Header.

### Headers
- `Accept`: Specifies the media type that the client expects in the response. Available options: `application/json`, `application/hal+json`, `application/xml`, `text/xml`, `text/csv`. The default value is `application/json`.

### Path Parameters
- `lexiconId`: The unique identifier for the Lexicon (required).
- `keyphraseId`: The unique identifier for the Keyphrase in the Lexicon (required).

### Body
- `name`: The name of the slot (required).
- `isMainKeyphrase`: Indicates if it is main (required).

### Last Modified
Last modified on July 8, 2026.