Create plan

{  "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"  }}