## 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.

POST

/
v2.0
/
knowledgestores
/
{knowledgeStoreId}
/
extensions
/
run

### Try it

#### Run a Knowledge Extension

### cURL

```bash
curl --request POST \
  --url https://api-trial.cognigy.ai/new/v2.0/knowledgestores/{knowledgeStoreId}/extensions/run \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: <api-key>' \
  --data '
{
  "extension": "<string>",
  "type": "<string>",
  "updateKnowledge": true,
  "config": {}
}
'```

### Python

```python
import requests

url = "https://api-trial.cognigy.ai/new/v2.0/knowledgestores/{knowledgeStoreId}/extensions/run"

payload = {
    "extension": "<string>",
    "type": "<string>",
    "updateKnowledge": True,
    "config": {}
}
headers = {
    "X-API-Key": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)
```

### JavaScript Fetch

```javascript
const options = {
  method: 'POST',
  headers: {'X-API-Key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({extension: '<string>', type: '<string>', updateKnowledge: true, config: {}})
};

fetch('https://api-trial.cognigy.ai/new/v2.0/knowledgestores/{knowledgeStoreId}/extensions/run', 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/knowledgestores/{knowledgeStoreId}/extensions/run",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'extension' => '<string>',
    'type' => '<string>',
    'updateKnowledge' => true,
    'config' => [

]
  ]),
  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/knowledgestores/{knowledgeStoreId}/extensions/run"

payload := strings.NewReader(`{
  "extension": "<string>",
  "type": "<string>",
  "updateKnowledge": true,
  "config": {}
}`)

req, _ := http.NewRequest("POST", 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))
}
```

### Response Codes

- **201**  – On successful creation of KnowledgeSource metadata object.
- **400** – Bad Request: Validation failed, missing payload.
- **401** – Unauthorized Error: Invalid API Key.
- **402** – Payment Required Error.
- **403** – Forbidden Error.
- **404** – Not Found Error.
- **405** – Method Not Allowed Error.
- **409** – Conflict Error.
- **413** – Payload Too Large Error.
- **500** – Internal Server Error. 
- **501** – Not Implemented Error.
- **502** – Bad Gateway Error.
- **503** – Service Unavailable Error.
- **504** – Gateway Timeout Error.

### Authorizations

#### API Key
- `X-API-Key`: string, header, required. Supply the API Key in the HTTP-Header.

### Headers

- **Accept**: enum<string>. 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

- **knowledgeStoreId**: string, required. The Id of the KnowledgeStore. Required string length: `24`. Pattern: `^[a-z0-9]{24}$`.

### Body

```json
{
  "extension": "<string>",
  "type": "<string>",
  "updateKnowledge": true,
  "config": {}
}
```

### Response

Returns KnowledgeSource metadata object:

```json
{
  "name": "mysource",
  "description": "mysource description",
  "metaData": {
    "tags": ["tag1"]
  },
  "data": {
    "_id": "x4xU6hMntv23p",
    "sys_CreatedAt": "2019-12-16T11:40:45.7212",
    "sys_UpdatedAt": "2025-10-01T07:46:04.5932",
    "Type": "FAQ"
  },
  "chunkCount": 123,
  "connectorReference": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "referenceId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "_id": "<string>",
  "createdAt": 1694518620,
  "lastChanged": 1694518620,
  "createdBy": "<string>",
  "lastChangedBy": "<string>"
}
```