> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.getunleash.io/api/get-frontend-api-features-with-post/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.getunleash.io/_mcp/server.

# Retrieve enabled feature flags for the provided context, using POST.

POST https://app.unleash-instance.example.com/api/frontend
Content-Type: application/json

This endpoint returns the list of feature flags that the frontend API evaluates to enabled for the given context, using POST. Context values are provided as a `context` property in the request body. If the Frontend API is disabled 404 is returned.

Reference: https://docs.getunleash.io/api/get-frontend-api-features-with-post

## Authentication

- `Authorization` header (required) — API key needed to access this API
- `Authorization` header (bearer token, required) — API key needed to access this API, in Bearer token format

## Request

### Body (application/json)

This endpoint expects a frontendApiFeaturesPostSchema.

- `context` (FrontendApiFeaturesPostSchemaContext, optional) — The Unleash context.

## Response

### 200

frontendApiFeaturesSchema

- `toggles` (list of frontendApiFeatureSchema, required) — The actual features returned to the Frontend SDK

## Errors

### 401 Unauthorized Error

Authorization information is missing or invalid. Provide a valid API token as the `authorization` header, e.g. `authorization:*.*.my-admin-token`.

- `id` (string, optional) — The ID of the error instance
- `name` (string, optional) — The name of the error kind
- `message` (string, optional) — A description of what went wrong.

### 404 Not Found Error

The requested resource was not found.

- `id` (string, optional) — The ID of the error instance
- `name` (string, optional) — The name of the error kind
- `message` (string, optional) — A description of what went wrong.

## Types

### FrontendApiFeaturesPostSchemaContext

The Unleash context.

- `appName` (string, optional) — The name of the application.
- `currentTime` (string, optional) — A DateTime (or similar) data class instance or a string in an RFC3339-compatible format. Defaults to the current time if not set by the user.
- `properties` (map from string to string, optional) — Additional Unleash context properties
- `remoteAddress` (string, optional) — The app's IP address
- `sessionId` (string, optional) — An identifier for the current session
- `userId` (string, optional) — An identifier for the current user
- `environment` (string, optional, deprecated) — The environment the app is running in.

### frontendApiFeatureSchema

Frontend API feature

- `name` (string, required) — Unique feature name.
- `enabled` (boolean, required) — Always set to `true`.
- `impressionData` (boolean, required) — `true` if the impression data collection is enabled for the feature, otherwise `false`.
- `variant` (FrontendApiFeatureSchemaVariant, optional) — Variant details

### FrontendApiFeatureSchemaVariant

Variant details

- `name` (string, required) — The variants name. Is unique for this feature flag
- `enabled` (boolean, required) — Whether the variant is enabled or not.
- `payload` (FrontendApiFeatureSchemaVariantPayload, optional) — Extra data configured for this variant
- `feature_enabled` (boolean, optional) — Whether the feature is enabled or not.
- `featureEnabled` (boolean, optional, deprecated) — Use `feature_enabled` instead.

### FrontendApiFeatureSchemaVariantPayload

Extra data configured for this variant

- `type` (enum, required) — The format of the payload.
  - Allowed values: `json`, `csv`, `string`, `number`
- `value` (string, required) — The payload value stringified.

## Examples

**Request**

```json
{}
```

**Response**

```json
{
  "toggles": [
    {
      "name": "disable-comments",
      "enabled": true,
      "impressionData": false,
      "variant": {
        "name": "blue_group",
        "enabled": true,
        "payload": {
          "type": "json",
          "value": "{\"color\": \"red\"}"
        },
        "feature_enabled": true,
        "featureEnabled": true
      }
    }
  ]
}
```

**SDK Code**

```python
import requests

url = "https://app.unleash-instance.example.com/api/frontend"

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

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

print(response.json())
```

```javascript
const url = 'https://app.unleash-instance.example.com/api/frontend';
const options = {
  method: 'POST',
  headers: {Authorization: '<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://app.unleash-instance.example.com/api/frontend"

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

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

	req.Header.Add("Authorization", "<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://app.unleash-instance.example.com/api/frontend")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = '<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://app.unleash-instance.example.com/api/frontend")
  .header("Authorization", "<apiKey>")
  .header("Content-Type", "application/json")
  .body("{}")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://app.unleash-instance.example.com/api/frontend', [
  'body' => '{}',
  'headers' => [
    'Authorization' => '<apiKey>',
    'Content-Type' => 'application/json',
  ],
]);

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

```csharp
using RestSharp;

var client = new RestClient("https://app.unleash-instance.example.com/api/frontend");
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "<apiKey>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

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

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

let request = NSMutableURLRequest(url: NSURL(string: "https://app.unleash-instance.example.com/api/frontend")! 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()
```