curl --request DELETE \
  --url https://commet.co/api/v1/plan-groups/{id}/plans/{planId} \
  --header 'x-api-key: <api-key>'

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

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

const removedPlanFromGroup = await commet.planGroups.removePlan({
  id: "plg_xxx",
  planId: "pln_xxx",
});

from commet import Commet

commet = Commet("ck_xxx")

removed_plan_from_group = commet.plan_groups.remove_plan(
    "plg_xxx",
    "pln_xxx",
)

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

removedPlanFromGroup, err := client.PlanGroups.RemovePlan(ctx, "plg_xxx", "pln_xxx")
if err != nil {
	log.Fatal(err)
}

import co.commet.Commet;

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

var removedPlanFromGroup = commet.planGroups().removePlan("plg_xxx", "pln_xxx");

use Commet\Commet;

$commet = new Commet('ck_xxx');

$removedPlanFromGroup = $commet->planGroups->removePlan(
    id: 'plg_xxx',
    planId: 'pln_xxx',
);

{
  "id": "plan_1a2b3c4d",
  "removed": true,
  "object": "plan_group_membership",
  "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": "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"
  }
}