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

# Compare attribution models

GET /reports/attribution/compare

Returns per-dimension conversions computed under all attribution models
side by side, so their results can be compared.

Reference: https://docs.pivolio.com/api-reference/pivolio/attribution/compare

## Authentication

- `X-Workspace-Id` header (required) — API Key authentication via header

## Request

### Query parameters

- `period` (enum, optional) — Reporting time windows accepted by the analytics endpoints.
  - Allowed values: `1h`, `24h`, `7d`, `30d`, `90d`
- `window_days` (integer, optional, default: 30)
- `dimension` (enum, optional) — The dimension conversions are attributed to.
  - Allowed values: `channel`, `source`, `campaign`

## Response

### 200

Successful Response

- `dimension` (enum, required) — The dimension conversions are attributed to.
  - Allowed values: `channel`, `source`, `campaign`
- `rows` (list of ModelComparisonRow, required)
- `truncated` (boolean, optional, default: false)

## Errors

### 422 Unprocessable Entity Error

Validation Error

- `detail` (string, required)
- `code` (string, required)
- `errors` (list of FieldError, optional, nullable)

## Types

### ModelComparisonRow

- `value` (string, required)
- `by_model` (map from string to double, required)

### FieldError

- `field` (string, required)
- `message` (string, required)

## Examples

**Response**

```json
{
  "dimension": "channel",
  "rows": [
    {
      "value": "social",
      "by_model": {
        "first_click": 95,
        "last_click": 120,
        "linear": 110,
        "position_based": 115,
        "time_decay": 105
      }
    },
    {
      "value": "email",
      "by_model": {
        "first_click": 100,
        "last_click": 80,
        "linear": 90,
        "position_based": 95,
        "time_decay": 85
      }
    },
    {
      "value": "organic_search",
      "by_model": {
        "first_click": 130,
        "last_click": 150,
        "linear": 140,
        "position_based": 145,
        "time_decay": 135
      }
    }
  ],
  "truncated": false
}
```

**SDK Code**

```python
import requests

url = "https://api.example.com/reports/attribution/compare"

headers = {"X-Workspace-Id": "<apiKey>"}

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

print(response.json())
```

```javascript
const url = 'https://api.example.com/reports/attribution/compare';
const options = {method: 'GET', headers: {'X-Workspace-Id': '<apiKey>'}};

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 := "https://api.example.com/reports/attribution/compare"

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

	req.Header.Add("X-Workspace-Id", "<apiKey>")

	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("https://api.example.com/reports/attribution/compare")

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

request = Net::HTTP::Get.new(url)
request["X-Workspace-Id"] = '<apiKey>'

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.get("https://api.example.com/reports/attribution/compare")
  .header("X-Workspace-Id", "<apiKey>")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('GET', 'https://api.example.com/reports/attribution/compare', [
  'headers' => [
    'X-Workspace-Id' => '<apiKey>',
  ],
]);

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

```csharp
using RestSharp;

var client = new RestClient("https://api.example.com/reports/attribution/compare");
var request = new RestRequest(Method.GET);
request.AddHeader("X-Workspace-Id", "<apiKey>");
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = ["X-Workspace-Id": "<apiKey>"]

let request = NSMutableURLRequest(url: NSURL(string: "https://api.example.com/reports/attribution/compare")! 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()
```