Create a credit pack checkout link | Grant

import { AfternoonClient } from "grant-sdk";
async function main() {
    const client = new AfternoonClient({
        token: "YOUR_TOKEN_HERE",
    });
    await client.creditPacks.createCheckoutLink({
        subscriptionId: "cm5x9z8nv0009h85r7l9p2l0m",
        creditPackId: "cm5x9z8nv0011h85r7l9p2l2m",
    });
}
main();

{
  "success": true,
  "credit_pack_checkout_link": {
    "id": "cm5x9z8nv0012h85r7l9p2l3m",
    "subscription_id": "cm5x9z8nv0009h85r7l9p2l0m",
    "credit_pack_id": "cm5x9z8nv0011h85r7l9p2l2m",
    "quantity": "2500",
    "url": "https://www.trygrant.com/purchase/example-token",
    "token_expiration": "2026-08-07T12:00:00.000Z",
    "success_url": "https://example.com/billing/success",
    "back_url": "https://example.com/billing",
    "status": "pending",
    "created_at": "2026-08-06T12:00:00.000Z"
  },
  "request_id": "req_abc123"
}

Creates a 24-hour checkout link for an existing subscription and credit pack. The credit pack must belong to the subscription plan.

Authentication

AuthorizationBearer

API key obtained from the Grant dashboard

Request

This endpoint expects an object.

subscription_idstringRequiredformat: "cuid"

Subscription that will receive the credits

credit_pack_idstringRequiredformat: "cuid"

Credit pack to purchase

quantitydouble or nullOptional

Fixed quantity to purchase. Omit or pass null to let the customer choose.

success_urlstring or nullOptionalformat: "uri"

HTTP or HTTPS URL to redirect to after a successful purchase

back_urlstring or nullOptionalformat: "uri"

HTTP or HTTPS URL used when the customer leaves checkout

Response

Checkout link created

successboolean

credit_pack_checkout_linkobject

request_idstring

Errors

400

Bad Request Error

401

Unauthorized Error

404

Not Found Error

500

Internal Server Error