curl --request GET \
  --url https://api-sandbox.endl.io/api/v0/accounts/cus_9FpQ2LmZ8sW4TxKn1BvD/acct_7Kq2XbN4mR8vLp1DcYtZ \
  --header 'API-KEY: <api-key>' \
  --header 'Api-Version: 2026-09.1'

{
  "id": "acct_8f2a1c4e9b7d43a6",
  "name": "USD Account",
  "displayName": "Operating USD",
  "status": "ACTIVE",
  "category": "ONRAMP",
  "currency": "USD",
  "balance": { "amount": "12450.00", "currency": "USD" },
  "createdAt": "2026-09-02T11:41:07Z",
  "updatedAt": "2026-09-18T08:12:55Z",
  "fundingInstructions": {
    "source": {
      "currency": "USD",
      "beneficiaryName": "Zayment Finance Sp. z o.o.",
      "payoutRails": [
        {
          "payoutRail": "ach_push",
          "accountNumber": "213774930314",
          "routingNumber": "101019644",
          "bank": {
            "name": "Lead Bank",
            "address": "1801 Main St., Kansas City, MO 64108"
          },
          "depositFee": { "percentage": "0.5" }
        },
        {
          "payoutRail": "wire",
          "accountNumber": "213774930314",
          "routingNumber": "101019644",
          "bank": {
            "name": "Lead Bank",
            "address": "1801 Main St., Kansas City, MO 64108"
          },
          "depositFee": { "percentage": "0.5", "amount": "10.00", "currency": "USD" }
        },
        {
          "payoutRail": "swift",
          "accountNumber": "213774930314",
          "routingNumber": "101019644",
          "bic": "LEADUS33XXX",
          "bank": {
            "name": "Lead Bank",
            "address": "1801 Main St., Kansas City, MO 64108"
          },
          "depositFee": { "percentage": "0.5", "amount": "10.00", "currency": "USD" }
        }
      ]
    },
    "destination": { "asset": "USDC", "chain": "base" }
  }
}

{
  "code": 400,
  "message": "User id is required",
  "status": "ERROR",
  "data": null,
  "errors": [
    {
      "code": "ERRACC_1000",
      "message": "User id is required",
      "field": "userId"
    }
  ]
}

{
  "code": 401,
  "message": "Partner API key required",
  "status": "ERROR",
  "data": null,
  "errors": [
    {
      "code": "ERRCORE_1004",
      "message": "Partner API key required",
      "field": null
    }
  ]
}

{
  "code": 403,
  "message": "Insufficient permissions",
  "status": "ERROR",
  "data": null,
  "errors": [
    {
      "code": "ERRCORE_1005",
      "message": "Insufficient permissions",
      "field": null
    }
  ]
}

{
  "code": 404,
  "message": "User with ID 'cus_…' not found",
  "status": "ERROR",
  "data": null,
  "errors": [
    {
      "code": "ERRREF_1001",
      "message": "User with ID 'cus_…' not found",
      "field": "userId"
    }
  ]
}

{
  "code": 405,
  "message": "HTTP … is not supported for this endpoint",
  "status": "ERROR",
  "data": null,
  "errors": [
    {
      "code": "ERRCORE_1001",
      "message": "HTTP … is not supported for this endpoint",
      "field": null
    }
  ]
}

{
  "code": 409,
  "message": "Account is deactivated. Reactivate it before using it",
  "status": "ERROR",
  "data": null,
  "errors": [
    {
      "code": "ERRACC_1002",
      "message": "Account is deactivated. Reactivate it before using it",
      "field": "accountId"
    }
  ]
}

{
  "code": 429,
  "message": "Rate limit exceeded, please retry later",
  "status": "ERROR",
  "data": null,
  "errors": [
    {
      "code": "ERRCORE_1006",
      "message": "Rate limit exceeded, please retry later",
      "field": null
    }
  ]
}

{
  "code": 500,
  "message": "An error occurred while processing your request",
  "status": "ERROR",
  "data": null,
  "errors": [
    {
      "code": "ERRCORE_1000",
      "message": "An error occurred while processing your request",
      "field": null
    }
  ]
}