curl -X POST 'https://api.openai.com/v1/content_provenance_checks' \
  -H "Authorization: Bearer $OPENAI_API_KEY" \
  -F 'file=@sample.bin'

# POST /content_provenance_checks (OpenAI API)
Base URL: https://api.openai.com/v1
Auth: Authorization; OpenAI API key; required.
Request formats: multipart/form-data.
Last verified: 2026-10-20

> Create content provenance check

## 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/content_provenance_checks' \
  -H "Authorization: Bearer $OPENAI_API_KEY" \
  -F 'file=@sample.bin'

## Parameters
| Name | In | Type | Required | Description |
| :--- | :--- | :--- | :--- | :--- |
| file | body | string | Yes | The image or audio file to check for supported OpenAI provenance signals. |

## Response example
{"object":"content_provenance_check","created_at":0}

---
Need an API key? Get one at https://platform.openai.com/api-keys

POST

POST /content_provenance_checks — OpenAI API

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

OpenAI API

Create content provenance check

Base URL: https://api.openai.com/v1
Auth: Authorization: Bearer <OPENAI_API_KEY>
Last verified: 2026-10-20 · upstream hash matched

Actions Try in browser→

Agents: curl -H "Accept: text/markdown" this URL
→ 177 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/content_provenance_checks' \  -H "Authorization: Bearer $OPENAI_API_KEY" \  -F '[email protected]'

Parameters

Name	In	Type	Required	Description
file	body	string	Yes	The image or audio file to check for supported OpenAI provenance signals.

Response 200 OK

{
  "object": "content_provenance_check",
  "created_at": 0,
  "results": [
    {
      "type": "c2pa",
      "outcome": "detected",
      "validation_state": "trusted",
      "issuer": "string",
      "model": "string",
      "generated_at": "string"
    }
  ]
}

Get a free OpenAI API key → sponsored

Affiliate link - we may earn a commission, at no extra cost to you.