---
title: How can I determine the operator minimum and maximum amount /values.
description: When you pull an operator using the /operators endpoint, valid amounts for the operator or operators will be returned. There are two categories or types of denominations to look out for, these are fix
---

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# How can I determine the operator minimum and maximum amount /values.

Developers · Operators API

## Every operator's valid amounts, straight from one endpoint

How to read the min/max and fixed-amount fields the /operators endpoint returns, depending on the denomination type.

Endpoint

/operators

Denomination types

Range or Fixed

Level

Technical

When you query the `/operators` endpoint, the response tells you exactly which amounts are valid for that operator. Operators fall into one of two denomination types — **Range** (also called Open Range) or **Fixed** — and which fields you should read depends on which type you're dealing with.

## Range (Open Range) denominations

For operators with a range, you can send **any amount** between a minimum and a maximum — not just preset values. Four fields tell you that range:

| Field | What it tells you |
| --- | --- |
| minAmount | Minimum amount, in your account's base currency |
| maxAmount | Maximum amount, in your account's base currency |
| localMinAmount | Minimum amount, in the operator's local currency |
| localMaxAmount | Maximum amount, in the operator's local currency |

## Fixed denominations

For operators with fixed denominations, you can only send one of a specific set of preset amounts — there's no free-form range.

**Important:** for fixed denominations, `minAmount`, `maxAmount`, `localMinAmount`, and `localMaxAmount` all return `null`. Don't rely on those fields for this denomination type.

Instead, the valid amounts live in these three fields:

| Field | What it tells you |
| --- | --- |
| fixedAmounts | Array of valid amounts, in your account's base currency |
| localFixedAmounts | Array of valid amounts, in the operator's local currency |
| suggestedAmountsMap | A map pairing each fixed amount with its suggested/equivalent value |

## ⚙️ How to use this in practice

Check `minAmount` first: if it's `null`, you're dealing with a fixed-denomination operator — read `fixedAmounts` instead. If it has a real value, you're dealing with a range — any amount between `minAmount` and `maxAmount` is valid.

Need help parsing a specific operator's response?

Our support team can walk through it with you.

[Contact support →](mailto:tickets@reloadly.com)

 

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