curl --request POST \
  --url https://api.paygentic.io/v0/prices \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "billableMetricId": "<string>",
  "invoiceDisplayName": "<string>",
  "model": "standard",
  "paymentTerm": "instant",
  "properties": {
    "unitPrice": "<string>"
  }
}'

{
  "id": "price_l5m6n7o8p9q0r1s2",
  "object": "price",
  "billableMetricId": "bm_t3u4v5w6x7y8z9a0",
  "createdAt": "2024-01-18T11:20:00Z",
  "currency": "USD",
  "description": "Per-token pricing for Claude API",
  "invoiceDisplayName": "Claude Token Consumption",
  "model": "standard",
  "paymentTerm": "instant",
  "properties": {
    "unitPrice": "0.00002"
  },
  "unitAmount": "20000000",
  "updatedAt": "2024-01-18T11:20:00Z"
}