# Crypto top-ups

> LatamProxies API: crypto top-ups, unique exact amount, automatic matching and confirmation status. Parameters, example responses, curl, Python and Node.js code.

- URL: https://latamproxies.com/docs/api/top-ups/
- Last updated: 2026-10-06
- Publisher: LatamProxies (https://latamproxies.com)

Top up the balance in crypto: get the deposit address and the unique exact amount, send it, mark the top-up as sent, then follow the confirmations until the balance is credited. Payments are matched automatically by their exact amount. The balance buys any product in any country.

**Endpoints on this page**

- `GET /v1/catalog/coins`: Accepted cryptocurrencies and networks (with their fixed deposit address)
- `POST /v1/topups`: Start a crypto top-up of the balance (fixed address, exact amount)
- `POST /v1/topups/{topUpId}/txid`: Declare the transaction id (TXID) of the payment
- `GET /v1/topups/{topUpId}`: Get a top-up (poll for its live status)
- `GET /v1/topups`: List crypto top-ups

Base URL `https://latamproxies.com/api/v1`. Authentication, errors and limits: see the [API overview](https://latamproxies.com/docs/api/).

## Accepted cryptocurrencies and networks (with their fixed deposit address)

`GET /v1/catalog/coins`

Public: no API key needed.

**Response** `200 OK`

```json
{
  "data": [
    {
      "code": "BTC",
      "name": "Bitcoin",
      "networks": [
        {
          "id": "bitcoin",
          "name": "Bitcoin",
          "confirmationsRequired": 2,
          "estimatedMinutes": null,
          "memoRequired": false,
          "address": "DEPOSIT_ADDRESS"
        }
      ]
    }
  ]
}
```

*curl*

```bash
curl -s "https://latamproxies.com/api/v1/catalog/coins"
```

*Python*

```python
import os
import requests

API = "https://latamproxies.com/api/v1"

r = requests.get(f"{API}/catalog/coins", timeout=30)
r.raise_for_status()
print(r.json())
```

*Node.js*

```javascript
// Node.js 18+ (built-in fetch), ES module
const API = 'https://latamproxies.com/api/v1';

const res = await fetch(`${API}/catalog/coins`);
if (!res.ok) throw new Error((await res.json()).error?.message ?? `HTTP ${res.status}`);
console.log(await res.json());
```

## Start a crypto top-up of the balance (fixed address, exact amount)

`POST /v1/topups`

- `amountUsd` ≥ 25.00 USD and ≤ the maximum (10,000.00 by default): `422` on `amountUsd` otherwise.
- `coin` + `network` must be one of `GET /v1/catalog/coins` (`409 coin_unavailable` otherwise).
- Returns the network's **fixed** `address` and the exact `amountCrypto` = `amountUsd` / `rate` rounded **up** to the coin's precision (BTC/LTC/ETH/SOL 8 decimals, USDT/USDC 6), plus a small unique offset in the last digits so that no two open top-ups of the same network ask for the same amount. `rate` is locked until `expiresAt` (30 minutes); `txidDeadline` = `expiresAt` + 72 h.
- Optional `purchase` (same body as `POST /v1/orders`): validated and priced now (`422` with field names prefixed by `purchase.`, `409 plan_unavailable`…). `amountUsd` must cover `purchase` total − current balance (`422 too_small` on `amountUsd`). When the top-up is credited the order is placed from the balance in the same transaction; `purchase.status` becomes `completed` (with `orderId`) or `failed` (`failureReason`; the funds stay on the balance).

Authentication: API key in the `Authorization: Bearer API_KEY` header.

**Parameters**

| Name | In | Type | Required | Description |
| --- | --- | --- | --- | --- |
| `Idempotency-Key` | header | string | No | Unique key (e.g. a UUID) to safely retry a POST. Kept 24 h. — max. 128 characters |

**Request body**

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `amountUsd` | string (USD, 2 decimals) | Yes | USD to add: ≥ 25.00, ≤ 10,000.00 by default. |
| `coin` | string | Yes | — |
| `network` | string | Yes | — |
| `purchase` | object | No | Plan to buy automatically once the top-up is credited. |

*Example: Balance*

```json
{
  "amountUsd": "50.00",
  "coin": "USDT",
  "network": "tron"
}
```

*Example: Checkout*

```json
{
  "amountUsd": "25.00",
  "coin": "BTC",
  "network": "bitcoin",
  "purchase": {
    "planId": "res-10",
    "quantity": 1
  }
}
```

**Response** `201 Created`

```json
{
  "id": "top_7d2kq9x1",
  "status": "verifying",
  "final": false,
  "amountUsd": "25.00",
  "coin": "USDT",
  "network": "tron",
  "address": "DEPOSIT_ADDRESS",
  "amountCrypto": "25.000137",
  "rate": "1.00",
  "paymentUri": "PAYMENT_URI",
  "expiresAt": "2026-10-05T14:33:11Z",
  "txidDeadline": "2026-10-08T14:33:11Z",
  "confirmationsRequired": 20,
  "confirmations": 7,
  "txid": "9d2e5c0b1f7a4e3d8c6b2a1f0e9d8c7b6a5f4e3d2c1b0a9f8e7d6c5b4a3f41c7",
  "txidSubmittedAt": "2026-10-05T14:09:42Z",
  "amountReceivedCrypto": "25.000137",
  "explorerUrl": "https://tronscan.org/#/transaction/9d2e5c0b1f7a4e3d8c6b2a1f0e9d8c7b6a5f4e3d2c1b0a9f8e7d6c5b4a3f41c7",
  "creditedUsd": null,
  "creditedAt": null,
  "rejection": null,
  "purchase": {
    "planId": "res-10",
    "planName": "Basic",
    "quantity": 1,
    "options": {},
    "promoCode": null,
    "total": "5.94",
    "status": "pending",
    "orderId": null,
    "failureReason": null
  },
  "createdAt": "2026-10-05T14:03:11Z"
}
```

*curl*

```bash
curl -s -X POST "https://latamproxies.com/api/v1/topups" \
  -H "Authorization: Bearer $API_KEY" \
  -H "Idempotency-Key: $(uuidgen)" \
  -H "Content-Type: application/json" \
  -d '{"amountUsd":"50.00","coin":"USDT","network":"tron"}'
```

*Python*

```python
import os, uuid
import requests

API = "https://latamproxies.com/api/v1"
HEADERS = {"Authorization": f"Bearer {os.environ['API_KEY']}", "Idempotency-Key": str(uuid.uuid4())}

r = requests.post(f"{API}/topups", headers=HEADERS, json={"amountUsd": "50.00", "coin": "USDT", "network": "tron"}, timeout=30)
r.raise_for_status()
print(r.json())
```

*Node.js*

```javascript
// Node.js 18+ (built-in fetch), ES module
const API = 'https://latamproxies.com/api/v1';

const res = await fetch(`${API}/topups`, {
  method: 'POST',
  headers: { Authorization: `Bearer ${process.env.API_KEY}`, 'Idempotency-Key': crypto.randomUUID(), 'Content-Type': 'application/json' },
  body: JSON.stringify({ amountUsd: '50.00', coin: 'USDT', network: 'tron' }),
});
if (!res.ok) throw new Error((await res.json()).error?.message ?? `HTTP ${res.status}`);
console.log(await res.json());
```

## Declare the transaction id (TXID) of the payment

`POST /v1/topups/{topUpId}/txid`

Mark the top-up as sent once the payment has left your wallet or exchange (body may be empty: the payment is matched automatically by its unique exact amount). An optional `txid` speeds up the match. Accepted while the top-up is `awaiting_payment`, `expired` or `rejected`, and before `txidDeadline` (`expiresAt` + 72 h).

If a `txid` is given, its format is checked for the network (`422` on `txid`) and it must not be claimed by another top-up (`409 txid_already_used`). A closed top-up returns `409 topup_closed`. The top-up is then `verifying` while the payment is matched on-chain, and ends `credited` or `rejected` (with `rejection`).

Authentication: API key in the `Authorization: Bearer API_KEY` header.

**Parameters**

| Name | In | Type | Required | Description |
| --- | --- | --- | --- | --- |
| `topUpId` | path | string | Yes | — |

**Request body**

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `txid` | string | Yes | Transaction hash: 64 hex (bitcoin, litecoin, tron), 0x + 64 hex (ethereum), base58 signature (solana). — max. 128 characters |

*Example*

```json
{
  "txid": "4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"
}
```

**Response** `200 OK`

```json
{
  "id": "top_7d2kq9x1",
  "status": "verifying",
  "final": false,
  "amountUsd": "25.00",
  "coin": "USDT",
  "network": "tron",
  "address": "DEPOSIT_ADDRESS",
  "amountCrypto": "25.000137",
  "rate": "1.00",
  "paymentUri": "PAYMENT_URI",
  "expiresAt": "2026-10-05T14:33:11Z",
  "txidDeadline": "2026-10-08T14:33:11Z",
  "confirmationsRequired": 20,
  "confirmations": 7,
  "txid": "9d2e5c0b1f7a4e3d8c6b2a1f0e9d8c7b6a5f4e3d2c1b0a9f8e7d6c5b4a3f41c7",
  "txidSubmittedAt": "2026-10-05T14:09:42Z",
  "amountReceivedCrypto": "25.000137",
  "explorerUrl": "https://tronscan.org/#/transaction/9d2e5c0b1f7a4e3d8c6b2a1f0e9d8c7b6a5f4e3d2c1b0a9f8e7d6c5b4a3f41c7",
  "creditedUsd": null,
  "creditedAt": null,
  "rejection": null,
  "purchase": {
    "planId": "res-10",
    "planName": "Basic",
    "quantity": 1,
    "options": {},
    "promoCode": null,
    "total": "5.94",
    "status": "pending",
    "orderId": null,
    "failureReason": null
  },
  "createdAt": "2026-10-05T14:03:11Z"
}
```

*curl*

```bash
curl -s -X POST "https://latamproxies.com/api/v1/topups/top_7d2kq9x1/txid" \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"txid":"4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"}'
```

*Python*

```python
import os
import requests

API = "https://latamproxies.com/api/v1"
HEADERS = {"Authorization": f"Bearer {os.environ['API_KEY']}"}

r = requests.post(f"{API}/topups/top_7d2kq9x1/txid", headers=HEADERS, json={
    "txid": "4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b",
}, timeout=30)
r.raise_for_status()
print(r.json())
```

*Node.js*

```javascript
// Node.js 18+ (built-in fetch), ES module
const API = 'https://latamproxies.com/api/v1';

const res = await fetch(`${API}/topups/top_7d2kq9x1/txid`, {
  method: 'POST',
  headers: { Authorization: `Bearer ${process.env.API_KEY}`, 'Content-Type': 'application/json' },
  body: JSON.stringify({
    txid: '4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b',
  }),
});
if (!res.ok) throw new Error((await res.json()).error?.message ?? `HTTP ${res.status}`);
console.log(await res.json());
```

## Get a top-up (poll for its live status)

`GET /v1/topups/{topUpId}`

Poll this route to follow a top-up: every 10 s while `status = verifying`, every 30 s while it waits for the payment, and stop when `final = true`. A top-up becomes `expired` when no payment of its exact amount arrived before `expiresAt`; a payment that arrives late is still matched until `txidDeadline`.

Authentication: API key in the `Authorization: Bearer API_KEY` header.

**Parameters**

| Name | In | Type | Required | Description |
| --- | --- | --- | --- | --- |
| `topUpId` | path | string | Yes | — |

**Response** `200 OK`

```json
{
  "id": "top_7d2kq9x1",
  "status": "verifying",
  "final": false,
  "amountUsd": "25.00",
  "coin": "USDT",
  "network": "tron",
  "address": "DEPOSIT_ADDRESS",
  "amountCrypto": "25.000137",
  "rate": "1.00",
  "paymentUri": "PAYMENT_URI",
  "expiresAt": "2026-10-05T14:33:11Z",
  "txidDeadline": "2026-10-08T14:33:11Z",
  "confirmationsRequired": 20,
  "confirmations": 7,
  "txid": "9d2e5c0b1f7a4e3d8c6b2a1f0e9d8c7b6a5f4e3d2c1b0a9f8e7d6c5b4a3f41c7",
  "txidSubmittedAt": "2026-10-05T14:09:42Z",
  "amountReceivedCrypto": "25.000137",
  "explorerUrl": "https://tronscan.org/#/transaction/9d2e5c0b1f7a4e3d8c6b2a1f0e9d8c7b6a5f4e3d2c1b0a9f8e7d6c5b4a3f41c7",
  "creditedUsd": null,
  "creditedAt": null,
  "rejection": null,
  "purchase": {
    "planId": "res-10",
    "planName": "Basic",
    "quantity": 1,
    "options": {},
    "promoCode": null,
    "total": "5.94",
    "status": "pending",
    "orderId": null,
    "failureReason": null
  },
  "createdAt": "2026-10-05T14:03:11Z"
}
```

*curl*

```bash
curl -s "https://latamproxies.com/api/v1/topups/top_7d2kq9x1" \
  -H "Authorization: Bearer $API_KEY"
```

*Python*

```python
import os
import requests

API = "https://latamproxies.com/api/v1"
HEADERS = {"Authorization": f"Bearer {os.environ['API_KEY']}"}

r = requests.get(f"{API}/topups/top_7d2kq9x1", headers=HEADERS, timeout=30)
r.raise_for_status()
print(r.json())
```

*Node.js*

```javascript
// Node.js 18+ (built-in fetch), ES module
const API = 'https://latamproxies.com/api/v1';

const res = await fetch(`${API}/topups/top_7d2kq9x1`, {
  headers: { Authorization: `Bearer ${process.env.API_KEY}` },
});
if (!res.ok) throw new Error((await res.json()).error?.message ?? `HTTP ${res.status}`);
console.log(await res.json());
```

## List crypto top-ups

`GET /v1/topups`

Authentication: API key in the `Authorization: Bearer API_KEY` header.

**Parameters**

| Name | In | Type | Required | Description |
| --- | --- | --- | --- | --- |
| `page` | query | integer | No | ≥ 1, default `1` |
| `perPage` | query | integer | No | 1–100, default `20` |
| `status` | query | `awaiting_payment` · `verifying` · `credited` · `rejected` · `expired` | No | `final` = credited, or expired / rejected after `txidDeadline`. |

**Response** `200 OK`

```json
{
  "data": [
    {
      "id": "top_7d2kq9x1",
      "status": "verifying",
      "final": false,
      "amountUsd": "25.00",
      "coin": "USDT",
      "network": "tron",
      "address": "DEPOSIT_ADDRESS",
      "amountCrypto": "25.000137",
      "rate": "1.00",
      "paymentUri": "PAYMENT_URI",
      "expiresAt": "2026-10-05T14:33:11Z",
      "txidDeadline": "2026-10-08T14:33:11Z",
      "confirmationsRequired": 20,
      "confirmations": 7,
      "txid": "9d2e5c0b1f7a4e3d8c6b2a1f0e9d8c7b6a5f4e3d2c1b0a9f8e7d6c5b4a3f41c7",
      "txidSubmittedAt": "2026-10-05T14:09:42Z",
      "amountReceivedCrypto": "25.000137",
      "explorerUrl": "https://tronscan.org/#/transaction/9d2e5c0b1f7a4e3d8c6b2a1f0e9d8c7b6a5f4e3d2c1b0a9f8e7d6c5b4a3f41c7",
      "creditedUsd": null,
      "creditedAt": null,
      "rejection": null,
      "purchase": {
        "planId": "res-10",
        "planName": "Basic",
        "quantity": 1,
        "options": {},
        "promoCode": null,
        "total": "5.94",
        "status": "pending",
        "orderId": null,
        "failureReason": null
      },
      "createdAt": "2026-10-05T14:03:11Z"
    }
  ],
  "pagination": {
    "page": 1,
    "perPage": 20,
    "total": 1,
    "totalPages": 1
  }
}
```

*curl*

```bash
curl -s "https://latamproxies.com/api/v1/topups" \
  -H "Authorization: Bearer $API_KEY"
```

*Python*

```python
import os
import requests

API = "https://latamproxies.com/api/v1"
HEADERS = {"Authorization": f"Bearer {os.environ['API_KEY']}"}

r = requests.get(f"{API}/topups", headers=HEADERS, timeout=30)
r.raise_for_status()
print(r.json())
```

*Node.js*

```javascript
// Node.js 18+ (built-in fetch), ES module
const API = 'https://latamproxies.com/api/v1';

const res = await fetch(`${API}/topups`, {
  headers: { Authorization: `Bearer ${process.env.API_KEY}` },
});
if (!res.ok) throw new Error((await res.json()).error?.message ?? `HTTP ${res.status}`);
console.log(await res.json());
```

---

LatamProxies: LatamProxies is a no-KYC residential and 4G/5G mobile proxy provider for Latin America and the Caribbean — Brazil, Mexico, Argentina, Colombia, Chile, Peru and more — paid only in crypto (USDT, BTC, USDC, ETH, LTC, SOL). Residential traffic starts at $0.50/GB.