curl --request GET \
  --url https://api.paygentic.io/v0/plans \
  --header 'Authorization: Bearer <token>'

{
  "data": [
    {
      "id": "plan_t9u0v1w2x3y4z5a6",
      "object": "plan",
      "billingInterval": "monthly",
      "createdAt": "2024-01-12T10:00:00Z",
      "currency": "USD",
      "defaultTaxCode": "eservice",
      "defaultTaxRate": 8.5,
      "description": "Claude API access with 500K tokens monthly allowance",
      "invoiceDisplayName": "LLM API Basic Plan",
      "merchantId": "org_b7c8d9e0f1g2h3i4",
      "name": "Basic Tier",
      "price": "49990000000",
      "prices": [
        {
          "id": "price_r3s4t5u6v7w8x9y0",
          "object": "price",
          "billableMetricId": "bm_y1z2a3b4c5d6e7f8",
          "createdAt": "2024-01-12T10:00:00Z",
          "invoiceDisplayName": "Token Usage",
          "model": "standard",
          "paymentTerm": "instant",
          "updatedAt": "2024-01-12T10:00:00Z"
        }
      ],
      "productId": "prod_j5k6l7m8n9o0p1q2",
      "taxBehavior": "exclusive",
      "updatedAt": "2024-01-12T10:00:00Z"
    },
    {
      "id": "plan_z1a2b3c4d5e6f7g8",
      "object": "plan",
      "billingInterval": "monthly",
      "createdAt": "2024-02-15T12:30:00Z",
      "currency": "USD",
      "defaultTaxCode": "eservice",
      "defaultTaxRate": 10,
      "description": "Unlimited cloud storage plus real-time analytics tools",
      "invoiceDisplayName": "Data Warehouse Business",
      "merchantId": "org_h9i0j1k2l3m4n5o6",
      "name": "Business Package",
      "price": "199000000000",
      "prices": [
        {
          "id": "price_x5y6z7a8b9c0d1e2",
          "object": "price",
          "billableMetricId": "bm_a1b2c3d4e5f6g7h8",
          "createdAt": "2024-02-15T12:30:00Z",
          "invoiceDisplayName": "Storage Usage",
          "model": "volume",
          "paymentTerm": "in_arrears",
          "updatedAt": "2024-02-20T10:15:00Z"
        }
      ],
      "productId": "prod_p7q8r9s0t1u2v3w4",
      "taxBehavior": "exclusive",
      "updatedAt": "2024-02-20T10:15:00Z"
    }
  ],
  "pagination": {
    "limit": 10,
    "offset": 0,
    "total": 2
  }
}