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# Contribution

GET https://app.termina.ai/api/v1/group/{group_id}/deal/{deal_id}/data/contribution

Get the contribution for the user type.

Returns both actual and projected cohort rows.

Reference: https://docs.termina.ai/api-reference/data/unit-economics/get-contribution

## Authentication

- `Authorization` header (bearer token, required) — Bearer authentication of the form `Bearer <token>`, where token is your auth token.

## Servers

- `https://app.termina.ai` (Production server, default)
- `https://app.termina.dev` (Development server)
- `http://localhost:8000` (Local development server)

## Request

### Path parameters

- `group_id` (integer, required)
- `deal_id` (integer, required)

### Query parameters

- `user_type` (enum, required)
  - Allowed values: `business`, `consumer`, `supplier`, `asset`, `labor`, `business_user`
- `freq` (enum, optional)
  - Allowed values: `M`, `Q`, `A`

## Response

### 200

Successful Response

- `list of ContributionResponse`

## Errors

### 422 Unprocessable Entity Error

Validation Error

- `detail` (list of ValidationError, optional)

## Types

### ContributionResponse

Represents the cohortized contribution for the Unit Economics for the specified user type. This approach assumes all acquisition spend was toward the specified user type. This is the core input to deriving certain unit-economic aggregate metrics.

- `cohort` (string, required) — The date of the cohort.
- `period` (integer, required) — The period of the cohort. 0 is the first period.
- `cohort_size` (integer, required) — The number of users in the cohort.
- `cac` (double, required, nullable) — The customer acquisition cost (CAC) for the cohort.
- `ltv` (double, required, nullable) — The revenue lifetime value (LTV) for the cohort.
- `ltv_cac` (double, required, nullable) — The LTV to CAC ratio for the cohort for the period.
- `gmltv` (double, required, nullable) — The gross-margin lifetime value, which is the cumululative gross profit, for the cohort for the period.
- `gmltv_cac` (double, required, nullable) — The gmLTV to CAC ratio for the cohort for the period. This related to the contribution margin.
- `contribution` (double, required, nullable) — The contribution (gmLTV - CAC) for the cohort for the period.
- `ltv_minus_cac` (double, optional, nullable) — The LTV minus CAC for the cohort for the period (revenue-only contribution).
- `method` (enum, optional) — Discriminator for whether this row reflects observed history (`actual`) or a forward projection of the cohort curve (`projected`).
  - Allowed values: `actual`, `projected`

### ValidationError

- `loc` (list of ValidationErrorLocItems, required)
- `msg` (string, required)
- `type` (string, required)
- `input` (any, optional)
- `ctx` (ValidationErrorCtx, optional)

### ValidationErrorLocItems

### ValidationErrorCtx

## Examples

**Response**

```json
[
  {
    "cohort": "2026-01",
    "period": 1,
    "cohort_size": 1000,
    "cac": 10,
    "ltv": 100,
    "ltv_cac": 0.5,
    "gmltv": 100,
    "gmltv_cac": 0.25,
    "contribution": 90,
    "ltv_minus_cac": 80,
    "method": "actual"
  }
]
```

**SDK Code**

```python
import requests

url = "https://app.termina.ai/api/v1/group/1/deal/1/data/contribution"

querystring = {"user_type":"business"}

headers = {"Authorization": "Bearer <token>"}

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

print(response.json())
```

```javascript
const url = 'https://app.termina.ai/api/v1/group/1/deal/1/data/contribution?user_type=business';
const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};

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://app.termina.ai/api/v1/group/1/deal/1/data/contribution?user_type=business"

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

	req.Header.Add("Authorization", "Bearer <token>")

	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://app.termina.ai/api/v1/group/1/deal/1/data/contribution?user_type=business")

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

request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'

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://app.termina.ai/api/v1/group/1/deal/1/data/contribution?user_type=business")
  .header("Authorization", "Bearer <token>")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('GET', 'https://app.termina.ai/api/v1/group/1/deal/1/data/contribution?user_type=business', [
  'headers' => [
    'Authorization' => 'Bearer <token>',
  ],
]);

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

```csharp
using RestSharp;

var client = new RestClient("https://app.termina.ai/api/v1/group/1/deal/1/data/contribution?user_type=business");
var request = new RestRequest(Method.GET);
request.AddHeader("Authorization", "Bearer <token>");
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = ["Authorization": "Bearer <token>"]

let request = NSMutableURLRequest(url: NSURL(string: "https://app.termina.ai/api/v1/group/1/deal/1/data/contribution?user_type=business")! 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()
```