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

# Get strategy segments

GET https://app.unleash-instance.example.com/api/admin/segments/strategies/{strategyId}

Retrieve all segments that are referenced by the specified strategy. Returns an empty list of segments if the strategy ID doesn't exist.

Reference: https://docs.getunleash.io/api/get-segments-by-strategy-id

## 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

### Path parameters

- `strategyId` (string, required)

## Response

### 200

segmentsSchema

- `segments` (list of adminSegmentSchema, optional) — A list of segments

## Types

### adminSegmentSchema

A description of a [segment](https://docs.getunleash.io/concepts/segments)

- `id` (integer, required) — The ID of this segment
- `name` (string, required) — The name of this segment
- `constraints` (list of constraintSchema, required) — The list of constraints that are used in this segment
- `createdAt` (string, required) — When the segment was created
- `description` (string, optional, nullable) — The description for this segment
- `usedInFeatures` (integer, optional, nullable) — The number of feature flags that use this segment. The number also includes the any flags with pending change requests that would add this segment.
- `usedInProjects` (integer, optional, nullable) — The number of projects that use this segment. The number includes any projects with pending change requests that would add this segment.
- `project` (string, optional, nullable) — The project the segment belongs to. Only present if the segment is a project-specific segment.
- `createdBy` (string, optional, nullable) — The creator's email or username

### constraintSchema

A strategy constraint. For more information, refer to [the strategy constraint reference documentation](https://docs.getunleash.io/concepts/activation-strategies#constraints)

- `contextName` (string, required) — The name of the context field that this constraint should apply to.
- `operator` (enum, required) — The operator to use when evaluating this constraint. For more information about the various operators, refer to [the strategy constraint operator documentation](https://docs.getunleash.io/concepts/activation-strategies#constraint-operators).
  - Allowed values: `NOT_IN`, `IN`, `STR_ENDS_WITH`, `STR_STARTS_WITH`, `STR_CONTAINS`, `NUM_EQ`, `NUM_GT`, `NUM_GTE`, `NUM_LT`, `NUM_LTE`, `DATE_AFTER`, `DATE_BEFORE`, `SEMVER_EQ`, `SEMVER_GT`, `SEMVER_LT`, `SEMVER_GTE`, `SEMVER_LTE`, `REGEX`
- `caseInsensitive` (boolean, optional, default: false) — Whether the operator should be case sensitive or not. Defaults to `false` (being case sensitive).
- `inverted` (boolean, optional, default: false) — Whether the result should be negated or not. If `true`, will turn a `true` result into a `false` result and vice versa.
- `values` (list of string, optional) — The context values that should be used for constraint evaluation. Use this property instead of `value` for properties that accept multiple values.
- `value` (string, optional) — The context value that should be used for constraint evaluation. Use this property instead of `values` for properties that only accept single values.

## Examples

**Response**

```json
{
  "segments": [
    {
      "id": 2,
      "name": "ios-users",
      "constraints": [
        {
          "contextName": "appName",
          "operator": "IN",
          "caseInsensitive": false,
          "inverted": false,
          "values": [
            "my-app",
            "my-other-app"
          ],
          "value": "my-app"
        }
      ],
      "createdAt": "2023-04-12T11:13:31.960Z",
      "description": "IOS users segment",
      "usedInFeatures": 3,
      "usedInProjects": 2,
      "project": "red-vista",
      "createdBy": "someone@example.com"
    }
  ]
}
```

**SDK Code**

```python
import requests

url = "https://app.unleash-instance.example.com/api/admin/segments/strategies/strategyId"

headers = {"Authorization": "<apiKey>"}

response = requests.get(url, headers=headers)

print(response.json())
```

```javascript
const url = 'https://app.unleash-instance.example.com/api/admin/segments/strategies/strategyId';
const options = {method: 'GET', headers: {Authorization: '<apiKey>'}};

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"
	"net/http"
	"io"
)

func main() {

	url := "https://app.unleash-instance.example.com/api/admin/segments/strategies/strategyId"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("Authorization", "<apiKey>")

	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/admin/segments/strategies/strategyId")

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

request = Net::HTTP::Get.new(url)
request["Authorization"] = '<apiKey>'

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.get("https://app.unleash-instance.example.com/api/admin/segments/strategies/strategyId")
  .header("Authorization", "<apiKey>")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('GET', 'https://app.unleash-instance.example.com/api/admin/segments/strategies/strategyId', [
  'headers' => [
    'Authorization' => '<apiKey>',
  ],
]);

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

```csharp
using RestSharp;

var client = new RestClient("https://app.unleash-instance.example.com/api/admin/segments/strategies/strategyId");
var request = new RestRequest(Method.GET);
request.AddHeader("Authorization", "<apiKey>");
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = ["Authorization": "<apiKey>"]

let request = NSMutableURLRequest(url: NSURL(string: "https://app.unleash-instance.example.com/api/admin/segments/strategies/strategyId")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "GET"
request.allHTTPHeaderFields = headers

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()
```