List plans

{  "object": "list",  "data": [    {      "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    }  ],  "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": "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"  }}