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

# Send a test event

POST https://api.truvo.com/v1/event-subscriptions/{id}/test

**MCP tool:** [`send_test_event`](https://docs.truvo.com/api-reference/mcp/send-test-event)

Reference: https://docs.truvo.com/api-reference/send-test-event

## 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`
- `Idempotency-Key` (string, required) — A caller-chosen request key. A key replays for at least 24 hours. The same key with the same body replays the first answer; the same key with a different body is a conflict.

## Response

### 202

Send a test event to one active subscription, up to 10 a minute. It names no resource and carries no applicant data. Its delivery shows in the delivery log. A test does not use the quote request allowance.

- `subscription_id` (string, required)
- `event` (TestEvent, required)

## Errors

### 400 Bad Request Error

Error envelope. One of: invalid_version, invalid_json.

- `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)

### 409 Conflict Error

Error envelope. One of: conflict.

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

### 413 Content Too Large Error

Error envelope. One of: request_too_large.

- `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

### TestEvent

- `id` (string, required)
- `type` (string, required)
- `occurred_at` (datetime, required)
- `environment` (string, required)
- `subscription_id` (string, required)

### 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",
  "event": {
    "id": "evt_test9a7d923809399cb7eb6c35632cda4384",
    "type": "webhook.test",
    "occurred_at": "2026-09-27T15:02:28.000Z",
    "environment": "sandbox",
    "subscription_id": "sub_53e3e36ac096b9d2e3cad557691d523f"
  }
}
```

**SDK Code**

```python Test event
import requests

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

headers = {
    "Idempotency-Key": "c38e3e85-5d27-4a5e-b27c-78c0d12c9251",
    "Truvo-Version": "2026-09-26",
    "Authorization": "Bearer <apiKey>"
}

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

print(response.json())
```

```javascript Test event
const url = 'https://api.truvo.com/v1/event-subscriptions/sub_53e3e36ac096b9d2e3cad557691d523f/test';
const options = {
  method: 'POST',
  headers: {
    'Idempotency-Key': 'c38e3e85-5d27-4a5e-b27c-78c0d12c9251',
    '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 Test event
package main

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

func main() {

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

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

	req.Header.Add("Idempotency-Key", "c38e3e85-5d27-4a5e-b27c-78c0d12c9251")
	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 Test event
require 'uri'
require 'net/http'

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

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

request = Net::HTTP::Post.new(url)
request["Idempotency-Key"] = 'c38e3e85-5d27-4a5e-b27c-78c0d12c9251'
request["Truvo-Version"] = '2026-09-26'
request["Authorization"] = 'Bearer <apiKey>'

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

```java Test event
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.post("https://api.truvo.com/v1/event-subscriptions/sub_53e3e36ac096b9d2e3cad557691d523f/test")
  .header("Idempotency-Key", "c38e3e85-5d27-4a5e-b27c-78c0d12c9251")
  .header("Truvo-Version", "2026-09-26")
  .header("Authorization", "Bearer <apiKey>")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api.truvo.com/v1/event-subscriptions/sub_53e3e36ac096b9d2e3cad557691d523f/test', [
  'headers' => [
    'Authorization' => 'Bearer <apiKey>',
    'Idempotency-Key' => 'c38e3e85-5d27-4a5e-b27c-78c0d12c9251',
    'Truvo-Version' => '2026-09-26',
  ],
]);

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

```csharp Test event
using RestSharp;

var client = new RestClient("https://api.truvo.com/v1/event-subscriptions/sub_53e3e36ac096b9d2e3cad557691d523f/test");
var request = new RestRequest(Method.POST);
request.AddHeader("Idempotency-Key", "c38e3e85-5d27-4a5e-b27c-78c0d12c9251");
request.AddHeader("Truvo-Version", "2026-09-26");
request.AddHeader("Authorization", "Bearer <apiKey>");
IRestResponse response = client.Execute(request);
```

```swift Test event
import Foundation

let headers = [
  "Idempotency-Key": "c38e3e85-5d27-4a5e-b27c-78c0d12c9251",
  "Truvo-Version": "2026-09-26",
  "Authorization": "Bearer <apiKey>"
]

let request = NSMutableURLRequest(url: NSURL(string: "https://api.truvo.com/v1/event-subscriptions/sub_53e3e36ac096b9d2e3cad557691d523f/test")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "POST"
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()
```