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

# Trigger Objects

POST https://vision-agent.api.reka.ai/v2/videos/{video_id}/features/objects
Content-Type: application/json

Dispatch object detection and tracking on video chunks.

Known issues:
- Only detects people (via /person/track). The feature is named "objects"
  but other BoundingBoxType values (face, text, facecam) are never produced
  here; filtering get_objects by those types silently returns nothing.
- person_id is always null in API responses. The tracker assigns integer
  tracking IDs per chunk, which are converted to UUID strings before DB
  storage. The API reader calls int() on those UUIDs, which always fails.
- person_id is chunk-scoped, not video-scoped. The tracker resets IDs at
  each chunk boundary, so the same person gets a different person_id in
  every chunk — cross-chunk re-identification does not work.

Reference: https://docs.reka.ai/vision/api-reference/features/trigger-objects

## Authentication

- `X-Api-Key` header (required) — API key authentication via X-Api-Key header
- `Authorization` header (bearer token, required) — Bearer token authentication via Authorization header

## Request

### Path parameters

- `video_id` (string, required)

### Headers

- `X-Enable-Overwrite-Metering` (string, optional, nullable)

### Body (application/json)

This endpoint expects an ObjectsTriggerRequest.

- `force` (boolean, optional, default: false)
- `force_feature_queue` (boolean, optional, default: false)
- `person_localization` (PersonLocalizationConfig, optional)

## Response

### 200

Successful Response

- `video_id` (string, required)
- `feature` (enum, required)
  - Allowed values: `transcript`, `captions`, `reel_captions`, `embeddings`, `objects`, `scenes`, `audio_events`, `chapters`, `thumbnails`
- `status` (enum, required)
  - Allowed values: `none`, `pending`, `processing`, `ready`, `failed`, `blocked`

## Types

### PersonLocalizationConfig

- `max_fps` (integer, optional, default: 15)
- `max_failed_frames` (integer, optional, default: 10)
- `num_photos_per_person` (integer, optional, default: 3)
- `max_objects_per_chunk` (integer, optional, default: 10)
- `conf` (double, optional, default: 0.9)
- `iou` (double, optional, default: 0.7)

## Examples

**Request**

```json
{}
```

**Response**

```json
{
  "video_id": "string",
  "feature": "transcript",
  "status": "none"
}
```

**SDK Code**

```python
import requests

url = "https://vision-agent.api.reka.ai/v2/videos/video_id/features/objects"

payload = {}
headers = {
    "X-Api-Key": "<apiKey>",
    "Content-Type": "application/json"
}

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

print(response.json())
```

```javascript
const url = 'https://vision-agent.api.reka.ai/v2/videos/video_id/features/objects';
const options = {
  method: 'POST',
  headers: {'X-Api-Key': '<apiKey>', 'Content-Type': 'application/json'},
  body: '{}'
};

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://vision-agent.api.reka.ai/v2/videos/video_id/features/objects"

	payload := strings.NewReader("{}")

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

	req.Header.Add("X-Api-Key", "<apiKey>")
	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://vision-agent.api.reka.ai/v2/videos/video_id/features/objects")

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

request = Net::HTTP::Post.new(url)
request["X-Api-Key"] = '<apiKey>'
request["Content-Type"] = 'application/json'
request.body = "{}"

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.post("https://vision-agent.api.reka.ai/v2/videos/video_id/features/objects")
  .header("X-Api-Key", "<apiKey>")
  .header("Content-Type", "application/json")
  .body("{}")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://vision-agent.api.reka.ai/v2/videos/video_id/features/objects', [
  'body' => '{}',
  'headers' => [
    'Content-Type' => 'application/json',
    'X-Api-Key' => '<apiKey>',
  ],
]);

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

```csharp
using RestSharp;

var client = new RestClient("https://vision-agent.api.reka.ai/v2/videos/video_id/features/objects");
var request = new RestRequest(Method.POST);
request.AddHeader("X-Api-Key", "<apiKey>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = [
  "X-Api-Key": "<apiKey>",
  "Content-Type": "application/json"
]
let parameters = [] as [String : Any]

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

let request = NSMutableURLRequest(url: NSURL(string: "https://vision-agent.api.reka.ai/v2/videos/video_id/features/objects")! 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()
```