curl --request GET \
  --url https://commet.co/api/v1/customers/{id}/plan-grants \
  --header 'x-api-key: <api-key>'

import { Commet } from "@commet/node";

const commet = new Commet({ apiKey: "ck_xxx" });

const response = await commet.customers.listPlanGrants({ id: "cus_xxx" });

from commet import Commet

commet = Commet("ck_xxx")

customers_list_plan_grants_result = commet.customers.list_plan_grants("cus_xxx")

client, err := commet.New("ck_xxx")
if err != nil {
	log.Fatal(err)
}
ctx := context.Background()

customersListPlanGrantsResult, err := client.Customers.ListPlanGrants(ctx, "cus_xxx")
if err != nil {
	log.Fatal(err)
}

import co.commet.Commet;

var commet = Commet.builder().apiKey("ck_xxx").build();

var customersListPlanGrantsResult = commet.customers().listPlanGrants("cus_xxx");

use Commet\Commet;

$commet = new Commet('ck_xxx');

$customersListPlanGrantsResult = $commet->customers->listPlanGrants(id: 'cus_xxx');

{
  "object": "list",
  "data": [
    {
      "id": "grant_1a2b3c4d",
      "customerId": "cus_1a2b3c4d",
      "subscriptionId": "sub_1a2b3c4d",
      "basePlanId": "plan_1a2b3c4d",
      "planId": "plan_5e6f7a8b",
      "planReleaseId": "release_5e6f7a8b",
      "status": "active",
      "duration": "until_date",
      "durationCycles": null,
      "startsAt": "2026-09-07T12:00:00.000Z",
      "expiresAt": "2026-10-07T12:00:00.000Z",
      "reason": "Evaluate Business features",
      "source": "api",
      "revokedAt": null,
      "createdAt": "2026-09-07T12:00:00.000Z",
      "updatedAt": "2026-09-07T12:00:00.000Z",
      "events": [
        {
          "id": "event_1a2b3c4d",
          "type": "created",
          "reason": "Evaluate Business features",
          "source": "api",
          "previousExpiresAt": null,
          "expiresAt": "2026-10-07T12:00:00.000Z",
          "duration": "until_date",
          "durationCycles": null,
          "requestedExpiresAt": "2026-10-07T12:00:00.000Z",
          "createdAt": "2026-09-07T12:00:00.000Z"
        }
      ],
      "object": "plan_grant",
      "livemode": false
    }
  ],
  "hasMore": false
}

{
  "error": {
    "type": "validation_error",
    "code": "validation_error",
    "message": "The request contains an invalid parameter.",
    "doc_url": "https://commet.co/docs/api-reference/2026-08-27/errors/validation_error.md"
  }
}

{
  "error": {
    "type": "authentication_error",
    "code": "unauthorized",
    "message": "A valid API key is required.",
    "doc_url": "https://commet.co/docs/api-reference/2026-08-27/errors/unauthorized.md"
  }
}

{
  "error": {
    "type": "authentication_error",
    "code": "forbidden",
    "message": "You do not have permission to perform this operation.",
    "doc_url": "https://commet.co/docs/api-reference/2026-08-27/errors/forbidden.md"
  }
}

{
  "error": {
    "type": "not_found_error",
    "code": "not_found",
    "message": "The requested resource was not found.",
    "doc_url": "https://commet.co/docs/api-reference/2026-08-27/errors/not_found.md"
  }
}

{
  "error": {
    "type": "rate_limit_error",
    "code": "rate_limited",
    "message": "Too many requests. Retry after the interval specified in the Retry-After header.",
    "doc_url": "https://commet.co/docs/api-reference/2026-08-27/errors/rate_limited.md"
  }
}

{
  "error": {
    "type": "internal_error",
    "code": "internal_error",
    "message": "An unexpected error occurred while processing the request.",
    "doc_url": "https://commet.co/docs/api-reference/2026-08-27/errors/internal_error.md"
  }
}