> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.truvo.com/api-reference/get-event-subscription-health/llms.txt.

# Get event subscription health

GET https://api.truvo.com/v1/event-subscriptions/{id}/health

**MCP tool:** [`get_event_subscription_health`](https://docs.truvo.com/api-reference/mcp/get-event-subscription-health)

Reference: https://docs.truvo.com/api-reference/get-event-subscription-health

## Authentication

- `Authorization` header (bearer token, required) — Your Truvo API key, sent as a bearer token. The prefix selects sandbox (trv_sandbox_) or live (trv_live_).

## Request

### Path parameters

- `id` (string, required)

### Headers

- `Truvo-Version` (enum, required, default: 2026-09-26) — The contract revision of this request, which every operation in this document requires. This document describes 2026-09-26. Served revisions: 2026-09-26. A missing header, or one that names no served revision exactly, answers `invalid_version` (400), and its field error lists the served revisions in `allowed_values`, newest first.
  - Allowed values: `2026-09-26`

## Response

### 200

Whether delivery to a subscription works: no_endpoint, healthy, failing, or disabled, with the newest attempt.

- `subscription_id` (string, required)
- `state` (string, required)
- `last_attempt` (EventSubscriptionHealthLastAttempt, required, nullable)

## Errors

### 400 Bad Request Error

Error envelope. One of: invalid_version.

- `error` (ErrorEnvelopeError, required)
- `request_id` (string, required)

### 401 Unauthorized Error

Error envelope. One of: authentication_failed.

- `error` (ErrorEnvelopeError, required)
- `request_id` (string, required)

### 403 Forbidden Error

Error envelope. One of: forbidden.

- `error` (ErrorEnvelopeError, required)
- `request_id` (string, required)

### 404 Not Found Error

Error envelope. One of: not_found.

- `error` (ErrorEnvelopeError, required)
- `request_id` (string, required)

### 422 Unprocessable Entity Error

Error envelope. One of: invalid_input.

- `error` (ErrorEnvelopeError, required)
- `request_id` (string, required)

### 429 Too Many Requests Error

Error envelope. One of: rate_limited.

- `error` (ErrorEnvelopeError, required)
- `request_id` (string, required)

### 500 Internal Server Error

Error envelope. One of: internal_error.

- `error` (ErrorEnvelopeError, required)
- `request_id` (string, required)

### 503 Service Unavailable Error

Error envelope. One of: service_unavailable.

- `error` (ErrorEnvelopeError, required)
- `request_id` (string, required)

## Types

### EventSubscriptionHealthLastAttempt

- `attempted_at` (datetime, required)
- `status` (enum, required)
  - Allowed values: `pending`, `succeeded`, `failed`, `cancelled`
- `response_status_code` (integer, required, nullable)

### ErrorEnvelopeError

- `code` (string, required)
- `message` (string, required)
- `field_errors` (list of FieldError, required, nullable)
- `retry_action` (RetryAction, required)
- `doc_url` (string, required)

### FieldError

- `path` (string, required)
- `message` (string, required)
- `allowed_values` (list of string, optional)

### RetryAction

- `type` (enum, required)
  - Allowed values: `none`, `retry`, `correct_input`, `supply_facts`, `read_status`, `use_new_request_key`, `wait`, `contact_support`
- `summary` (string, required)

## Examples

**Response**

```json
{
  "subscription_id": "sub_53e3e36ac096b9d2e3cad557691d523f",
  "state": "healthy",
  "last_attempt": null
}
```

**SDK Code**

```python Health
import requests

url = "https://api.truvo.com/v1/event-subscriptions/sub_53e3e36ac096b9d2e3cad557691d523f/health"

headers = {
    "Truvo-Version": "2026-09-26",
    "Authorization": "Bearer <apiKey>"
}

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

print(response.json())
```

```javascript Health
const url = 'https://api.truvo.com/v1/event-subscriptions/sub_53e3e36ac096b9d2e3cad557691d523f/health';
const options = {
  method: 'GET',
  headers: {'Truvo-Version': '2026-09-26', Authorization: 'Bearer <apiKey>'}
};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```

```go Health
package main

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

func main() {

	url := "https://api.truvo.com/v1/event-subscriptions/sub_53e3e36ac096b9d2e3cad557691d523f/health"

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

	req.Header.Add("Truvo-Version", "2026-09-26")
	req.Header.Add("Authorization", "Bearer <apiKey>")

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

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

	fmt.Println(res)
	fmt.Println(string(body))

}
```

```ruby Health
require 'uri'
require 'net/http'

url = URI("https://api.truvo.com/v1/event-subscriptions/sub_53e3e36ac096b9d2e3cad557691d523f/health")

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

request = Net::HTTP::Get.new(url)
request["Truvo-Version"] = '2026-09-26'
request["Authorization"] = 'Bearer <apiKey>'

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

```java Health
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.get("https://api.truvo.com/v1/event-subscriptions/sub_53e3e36ac096b9d2e3cad557691d523f/health")
  .header("Truvo-Version", "2026-09-26")
  .header("Authorization", "Bearer <apiKey>")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('GET', 'https://api.truvo.com/v1/event-subscriptions/sub_53e3e36ac096b9d2e3cad557691d523f/health', [
  'headers' => [
    'Authorization' => 'Bearer <apiKey>',
    'Truvo-Version' => '2026-09-26',
  ],
]);

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

```csharp Health
using RestSharp;

var client = new RestClient("https://api.truvo.com/v1/event-subscriptions/sub_53e3e36ac096b9d2e3cad557691d523f/health");
var request = new RestRequest(Method.GET);
request.AddHeader("Truvo-Version", "2026-09-26");
request.AddHeader("Authorization", "Bearer <apiKey>");
IRestResponse response = client.Execute(request);
```

```swift Health
import Foundation

let headers = [
  "Truvo-Version": "2026-09-26",
  "Authorization": "Bearer <apiKey>"
]

let request = NSMutableURLRequest(url: NSURL(string: "https://api.truvo.com/v1/event-subscriptions/sub_53e3e36ac096b9d2e3cad557691d523f/health")! 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()
```