curl --request POST \
  --url https://commet.co/api/v1/promo-codes \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "code": "<string>",
  "offerId": "<string>"
}
'

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

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

const promoCode = await commet.promoCodes.create({
  code: "api_calls",
  offerId: "ofr_xxx",
});

from commet import Commet

commet = Commet("ck_xxx")

promo_code = commet.promo_codes.create(
    code="api_calls",
    offer_id="ofr_xxx",
)

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

promoCode, err := client.PromoCodes.Create(ctx, &commet.CreatePromoCodeParams{
	Code: "api_calls",
	OfferID: "ofr_xxx",
})
if err != nil {
	log.Fatal(err)
}

import co.commet.Commet;
import co.commet.params.CreatePromoCodeParams;

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

var promoCode = commet.promoCodes().create(
    CreatePromoCodeParams.builder("api_calls", "ofr_xxx").build()
);

use Commet\Commet;

$commet = new Commet('ck_xxx');

$promoCode = $commet->promoCodes->create(
    code: 'api_calls',
    offerId: 'ofr_xxx',
);

{
  "id": "promo_1a2b3c4d",
  "code": "LAUNCH20",
  "offerId": "offer_1a2b3c4d",
  "billingInterval": "monthly",
  "maxRedemptions": 100,
  "expiresAt": null,
  "isActive": true,
  "redemptionCount": 0,
  "createdAt": "2026-09-07T12:00:00.000Z",
  "updatedAt": "2026-09-07T12:00:00.000Z",
  "object": "promo_code",
  "livemode": 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": "conflict_error",
    "code": "idempotency_in_progress",
    "message": "A request with this idempotency key is still being processed.",
    "doc_url": "https://commet.co/docs/api-reference/2026-08-27/errors/idempotency_in_progress.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"
  }
}

{
  "error": {
    "type": "internal_error",
    "code": "idempotency_unavailable",
    "message": "Idempotency storage is temporarily unavailable. Retry with the same idempotency key.",
    "doc_url": "https://commet.co/docs/api-reference/2026-08-27/errors/idempotency_unavailable.md"
  }
}