curl -X POST 'https://api.openai.com/v1/webhook_endpoints/whe_123/test' \
  -H "Authorization: Bearer $OPENAI_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
  "event_type": "batch.completed"
}'

# POST /webhook_endpoints/{webhook_endpoint_id}/test (OpenAI API)
Base URL: https://api.openai.com/v1
Auth: Authorization; OpenAI API key; required.
Request formats: application/json.
Last verified: 2026-09-18

> Test Webhook Endpoint

## Critical Gotchas
* The Responses API is the primary interface for new text and tool workflows; Chat Completions remains a separate compatibility API.
* Audio transcription uploads use multipart form data rather than a JSON request body.

## cURL
curl -X POST 'https://api.openai.com/v1/webhook_endpoints/whe_123/test' \
  -H "Authorization: Bearer $OPENAI_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
  "event_type": "batch.completed"
}'

## Parameters
| Name | In | Type | Required | Description |
| :--- | :--- | :--- | :--- | :--- |
| webhook_endpoint_id | path | string | Yes | The ID of the webhook endpoint to test. |
| event_type | body | string | Yes | Request body field event_type. |

## Response example
{"object":"webhook_endpoint.test","webhook_endpoint_id":"string"}

---
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POST

POST /webhook_endpoints/{webhook_endpoint_id}/test — OpenAI API

OpenAI API key (required); https://api.openai.com/v1

OpenAI API

Test Webhook Endpoint

Base URL: https://api.openai.com/v1
Auth: Authorization: Bearer <OPENAI_API_KEY>
Last verified: 2026-09-18 · upstream hash matched

Actions Try in browser→

Agents: curl -H "Accept: text/markdown" this URL
→ 198 tokens · Vary: Accept

Critical gotchas

The Responses API is the primary interface for new text and tool workflows; Chat Completions remains a separate compatibility API.

Audio transcription uploads use multipart form data rather than a JSON request body.

cURL

curl -X POST 'https://api.openai.com/v1/webhook_endpoints/whe_123/test' \  -H "Authorization: Bearer $OPENAI_API_KEY" \  -H 'Content-Type: application/json' \  -d '{  "event_type": "batch.completed"}'

Parameters

Name	In	Type	Required	Description
webhook_endpoint_id	path	string	Yes	The ID of the webhook endpoint to test.
event_type	body	string	Yes	Request body field event_type.

Response 200 OK

{
  "object": "webhook_endpoint.test",
  "webhook_endpoint_id": "string",
  "event_type": "string",
  "status_code": 0,
  "success": true
}

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