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

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

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

const plan = await commet.plans.create({
  name: "example",
  code: "api_calls",
});

from commet import Commet

commet = Commet("ck_xxx")

plan = commet.plans.create(
    name="example",
    code="api_calls",
)

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

plan, err := client.Plans.Create(ctx, &commet.CreatePlanParams{
	Name: "example",
	Code: "api_calls",
})
if err != nil {
	log.Fatal(err)
}

import co.commet.Commet;
import co.commet.params.CreatePlanParams;

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

var plan = commet.plans().create(
    CreatePlanParams.builder("example", "api_calls").build()
);

use Commet\Commet;

$commet = new Commet('ck_xxx');

$plan = $commet->plans->create(
    name: 'example',
    code: 'api_calls',
);

{
  "id": "plan_1a2b3c4d",
  "name": "Pro",
  "code": "pro",
  "description": "For growing API products",
  "consumptionModel": "metered",
  "isPublic": true,
  "isDefault": false,
  "isFree": false,
  "blockOnExhaustion": true,
  "sortOrder": 0,
  "planGroupId": "group_1a2b3c4d",
  "metadata": {},
  "createdAt": "2026-09-07T12:00:00.000Z",
  "updatedAt": "2026-09-07T12:00:00.000Z",
  "features": [
    {
      "code": "api_calls",
      "name": "API Calls",
      "type": "usage",
      "unitName": "calls",
      "enabled": true,
      "includedAmount": 1000,
      "unlimited": false,
      "overage": {
        "enabled": false,
        "model": null,
        "unitPrice": null
      },
      "regionalPrices": []
    }
  ],
  "prices": [
    {
      "id": "price_1a2b3c4d",
      "billingInterval": "monthly",
      "price": 2000,
      "isDefault": true,
      "trialDays": 0,
      "includedBalance": null,
      "includedCredits": null,
      "offerId": null,
      "inheritsFromPriceId": null,
      "metadata": {},
      "marketPrices": [],
      "regionalPrices": []
    }
  ],
  "exchangeRates": [],
  "object": "plan",
  "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"
  }
}