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

# List credit packs

GET https://api.trygrant.com/v1/plans/{id}/credit-packs

Returns all credit packs available for a plan.

Reference: https://docs.trygrant.com/api-reference/grant-events-api/credit-packs/list

## Authentication

- `Authorization` header (bearer token, required) — API key obtained from the Grant dashboard

## Servers

- `https://api.trygrant.com` (Production, default)
- `http://localhost:8787` (Local development)

## Request

### Path parameters

- `id` (string, required)

## Response

### 200

Credit packs

- `success` (boolean, required)
- `credit_packs` (list of CreditPack, required)
- `request_id` (string, required)

## Errors

### 401 Unauthorized Error

Unauthorized

- `success` (boolean, required)
- `error` (ErrorResponseError, required)
- `request_id` (string, optional) — Request ID for tracing

### 404 Not Found Error

Plan not found

- `success` (boolean, required)
- `error` (ErrorResponseError, required)
- `request_id` (string, optional) — Request ID for tracing

### 500 Internal Server Error

Internal server error

- `success` (boolean, required)
- `error` (ErrorResponseError, required)
- `request_id` (string, optional) — Request ID for tracing

## Types

### CreditPack

- `id` (string, required)
- `plan_id` (string, required)
- `code` (string, required)
- `pricing_unit_id` (string, required)
- `pricing_unit` (CreditPackPricingUnit, required)
- `money_minor` (string, required) — Price in the plan currency minor unit
- `unit_amount` (string, required) — Number of pricing units granted for money_minor
- `expiration_interval_count` (integer, required, nullable)
- `expiration_interval_unit` (enum, required)
  - Allowed values: `day`, `week`, `month`, `year`
- `created_at` (string, required) — ISO 8601 creation timestamp
- `updated_at` (string, required) — ISO 8601 last-updated timestamp

### ErrorResponseError

- `code` (string, required)
- `message` (string, required)
- `details` (any, optional)

### CreditPackPricingUnit

- `id` (string, required)
- `code` (string, required)
- `name` (string, required, nullable)

## Examples

**Response**

```json
{
  "success": true,
  "credit_packs": [
    {
      "id": "cm5x9z8nv0011h85r7l9p2l2m",
      "plan_id": "cm5x9z8nv0000h85r7l9p2k1m",
      "code": "100-pack",
      "pricing_unit_id": "cm5x9z8nv0008h85r7l9p2k9m",
      "pricing_unit": {
        "id": "cm5x9z8nv0008h85r7l9p2k9m",
        "code": "credits",
        "name": "Credits"
      },
      "money_minor": "100",
      "unit_amount": "2500",
      "expiration_interval_count": null,
      "expiration_interval_unit": "day",
      "created_at": "2026-08-06T12:00:00.000Z",
      "updated_at": "2026-08-06T12:00:00.000Z"
    }
  ],
  "request_id": "req_abc123"
}
```

**SDK Code**

```python
import requests

url = "https://api.trygrant.com/v1/plans/cm5x9z8nv0000h85r7l9p2k1m/credit-packs"

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

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

print(response.json())
```

```javascript
const url = 'https://api.trygrant.com/v1/plans/cm5x9z8nv0000h85r7l9p2k1m/credit-packs';
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://api.trygrant.com/v1/plans/cm5x9z8nv0000h85r7l9p2k1m/credit-packs"

	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://api.trygrant.com/v1/plans/cm5x9z8nv0000h85r7l9p2k1m/credit-packs")

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://api.trygrant.com/v1/plans/cm5x9z8nv0000h85r7l9p2k1m/credit-packs")
  .header("Authorization", "Bearer <token>")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('GET', 'https://api.trygrant.com/v1/plans/cm5x9z8nv0000h85r7l9p2k1m/credit-packs', [
  'headers' => [
    'Authorization' => 'Bearer <token>',
  ],
]);

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

```csharp
using RestSharp;

var client = new RestClient("https://api.trygrant.com/v1/plans/cm5x9z8nv0000h85r7l9p2k1m/credit-packs");
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://api.trygrant.com/v1/plans/cm5x9z8nv0000h85r7l9p2k1m/credit-packs")! 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()
```

> API documentation for Grant — billing infrastructure for usage-based pricing