> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://www.comet.com/docs/opik/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://www.comet.com/docs/opik/_mcp/server.

# Validate OAuth Access Token

POST http://localhost:5173/api/opik/auth-oauth

Introspects a bearer access token and returns the identity it resolves to

Reference: https://www.comet.com/docs/opik/reference/rest-api/mcp-o-auth/validate-o-auth-token

## Servers

- `http://localhost:5173/api` (Local server, default)
- `https://www.comet.com/opik/api` (Opik Cloud)

## Request

### Headers

- `Authorization` (string, optional)

## Response

### 200

Validated token identity

- `user_name` (string, optional)
- `workspace_id` (string, optional)
- `workspace_name` (string, optional)
- `resource` (string, optional)
- `expires_at` (datetime, optional)

## Errors

### 401 Unauthorized Error

Missing, malformed, or unknown access token

- `any`

## Examples

**Response**

```json
{
  "user_name": "string",
  "workspace_id": "string",
  "workspace_name": "string",
  "resource": "string",
  "expires_at": "2024-01-15T09:30:00Z"
}
```

**SDK Code**

```python
import requests

url = "http://localhost:5173/api/opik/auth-oauth"

response = requests.post(url)

print(response.json())
```

```javascript
const url = 'http://localhost:5173/api/opik/auth-oauth';
const options = {method: 'POST'};

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 := "http://localhost:5173/api/opik/auth-oauth"

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

	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("http://localhost:5173/api/opik/auth-oauth")

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

request = Net::HTTP::Post.new(url)

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.post("http://localhost:5173/api/opik/auth-oauth")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'http://localhost:5173/api/opik/auth-oauth');

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

```csharp
using RestSharp;

var client = new RestClient("http://localhost:5173/api/opik/auth-oauth");
var request = new RestRequest(Method.POST);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let request = NSMutableURLRequest(url: NSURL(string: "http://localhost:5173/api/opik/auth-oauth")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "POST"

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()
```