curl "https://invoice.horizonpay.co/api/v1/prices?product=prod_Hy7Rq2Lm9Xc4Vb8Nt3Kd6Pw1" \
  -H "Authorization: Bearer $INVOICE_AI_API_KEY"

import InvoiceAI from '@horizonpay/invoice-ai'

const invoiceai = new InvoiceAI() // reads INVOICE_AI_API_KEY

for await (const price of invoiceai.prices.list({
  product: 'prod_Hy7Rq2Lm9Xc4Vb8Nt3Kd6Pw1',
})) {
  console.log(price.id, price.unit_amount, price.currency)
}

from invoice_ai import InvoiceAI

client = InvoiceAI()  # reads INVOICE_AI_API_KEY

for price in client.prices.list(product="prod_Hy7Rq2Lm9Xc4Vb8Nt3Kd6Pw1"):
    print(price.id, price.unit_amount, price.currency)

{
  "data": [
    {
      "id": "price_Jc5Tn8Wq1Ze6Ra3Ym9Ub2Gs7",
      "object": "price",
      "product": "prod_Hy7Rq2Lm9Xc4Vb8Nt3Kd6Pw1",
      "nickname": "Monthly",
      "unit_amount": 2500000,
      "currency": "USD",
      "billing_scheme": "per_unit",
      "type": "recurring",
      "recurring": {
        "interval": "month",
        "interval_count": 1
      },
      "tax_rate": 0,
      "active": true,
      "created": "2026-09-22T09:30:00.000Z"
    }
  ],
  "next_cursor": null
}

{
  "type": "https://invoice.horizonpay.co/problems/unauthorized",
  "title": "Unauthorized",
  "status": 401,
  "detail": "Send your API key as `Authorization: Bearer inv_live_…`.",
  "instance": "req_7f3c9a1e2b4d4e8a9c6f2d1b0a3e5f71",
  "code": "unauthorized"
}

{
  "type": "https://invoice.horizonpay.co/problems/forbidden",
  "title": "Insufficient scope",
  "status": 403,
  "detail": "This credential is missing the invoices:write scope.",
  "instance": "req_7f3c9a1e2b4d4e8a9c6f2d1b0a3e5f71",
  "code": "forbidden"
}

{
  "type": "https://invoice.horizonpay.co/problems/not-found",
  "title": "Not found",
  "status": 404,
  "detail": "Product not found.",
  "instance": "req_7f3c9a1e2b4d4e8a9c6f2d1b0a3e5f71",
  "code": "not_found"
}

{
  "type": "https://invoice.horizonpay.co/problems/validation",
  "title": "Validation failed",
  "status": 422,
  "detail": "The cursor is not valid.",
  "instance": "req_7f3c9a1e2b4d4e8a9c6f2d1b0a3e5f71",
  "code": "validation",
  "errors": [
    {
      "path": "cursor",
      "message": "Pass the `next_cursor` from the previous page, unchanged."
    }
  ]
}

{
  "type": "https://invoice.horizonpay.co/problems/rate-limited",
  "title": "Too many requests",
  "status": 429,
  "detail": "Rate limit of 120 per 60s exceeded.",
  "instance": "req_7f3c9a1e2b4d4e8a9c6f2d1b0a3e5f71",
  "code": "rate_limited"
}