Generate a Payin Code

curl --request POST \
  --url https://stablecoin-api.sandbox.getmeru.com/v1/payins/qr-code \
  --header 'Content-Type: application/json' \
  --header 'api-key: <api-key>' \
  --data '
{
  "orderId": "<string>",
  "amount": 123,
  "currency": "<string>",
  "externalId": "<string>",
  "onBehalfOf": "<string>",
  "taxAmount": 123,
  "expireAt": "<string>"
}
'

import requests

url = "https://stablecoin-api.sandbox.getmeru.com/v1/payins/qr-code"

payload = {
    "orderId": "<string>",
    "amount": 123,
    "currency": "<string>",
    "externalId": "<string>",
    "onBehalfOf": "<string>",
    "taxAmount": 123,
    "expireAt": "<string>"
}
headers = {
    "api-key": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {'api-key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    orderId: '<string>',
    amount: 123,
    currency: '<string>',
    externalId: '<string>',
    onBehalfOf: '<string>',
    taxAmount: 123,
    expireAt: '<string>'
  })
};

fetch('https://stablecoin-api.sandbox.getmeru.com/v1/payins/qr-code', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://stablecoin-api.sandbox.getmeru.com/v1/payins/qr-code",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'orderId' => '<string>',
    'amount' => 123,
    'currency' => '<string>',
    'externalId' => '<string>',
    'onBehalfOf' => '<string>',
    'taxAmount' => 123,
    'expireAt' => '<string>'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "api-key: <api-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://stablecoin-api.sandbox.getmeru.com/v1/payins/qr-code"

	payload := strings.NewReader("{\n  \"orderId\": \"<string>\",\n  \"amount\": 123,\n  \"currency\": \"<string>\",\n  \"externalId\": \"<string>\",\n  \"onBehalfOf\": \"<string>\",\n  \"taxAmount\": 123,\n  \"expireAt\": \"<string>\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("api-key", "<api-key>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://stablecoin-api.sandbox.getmeru.com/v1/payins/qr-code")
  .header("api-key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"orderId\": \"<string>\",\n  \"amount\": 123,\n  \"currency\": \"<string>\",\n  \"externalId\": \"<string>\",\n  \"onBehalfOf\": \"<string>\",\n  \"taxAmount\": 123,\n  \"expireAt\": \"<string>\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://stablecoin-api.sandbox.getmeru.com/v1/payins/qr-code")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["api-key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"orderId\": \"<string>\",\n  \"amount\": 123,\n  \"currency\": \"<string>\",\n  \"externalId\": \"<string>\",\n  \"onBehalfOf\": \"<string>\",\n  \"taxAmount\": 123,\n  \"expireAt\": \"<string>\"\n}"

response = http.request(request)
puts response.read_body

{
  "success": false,
  "error": "externalId was already used"
}

POST

payins

qr-code

Generate a Payin Code

curl --request POST \
  --url https://stablecoin-api.sandbox.getmeru.com/v1/payins/qr-code \
  --header 'Content-Type: application/json' \
  --header 'api-key: <api-key>' \
  --data '
{
  "orderId": "<string>",
  "amount": 123,
  "currency": "<string>",
  "externalId": "<string>",
  "onBehalfOf": "<string>",
  "taxAmount": 123,
  "expireAt": "<string>"
}
'

import requests

url = "https://stablecoin-api.sandbox.getmeru.com/v1/payins/qr-code"

payload = {
    "orderId": "<string>",
    "amount": 123,
    "currency": "<string>",
    "externalId": "<string>",
    "onBehalfOf": "<string>",
    "taxAmount": 123,
    "expireAt": "<string>"
}
headers = {
    "api-key": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {'api-key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    orderId: '<string>',
    amount: 123,
    currency: '<string>',
    externalId: '<string>',
    onBehalfOf: '<string>',
    taxAmount: 123,
    expireAt: '<string>'
  })
};

fetch('https://stablecoin-api.sandbox.getmeru.com/v1/payins/qr-code', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://stablecoin-api.sandbox.getmeru.com/v1/payins/qr-code",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'orderId' => '<string>',
    'amount' => 123,
    'currency' => '<string>',
    'externalId' => '<string>',
    'onBehalfOf' => '<string>',
    'taxAmount' => 123,
    'expireAt' => '<string>'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "api-key: <api-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://stablecoin-api.sandbox.getmeru.com/v1/payins/qr-code"

	payload := strings.NewReader("{\n  \"orderId\": \"<string>\",\n  \"amount\": 123,\n  \"currency\": \"<string>\",\n  \"externalId\": \"<string>\",\n  \"onBehalfOf\": \"<string>\",\n  \"taxAmount\": 123,\n  \"expireAt\": \"<string>\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("api-key", "<api-key>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://stablecoin-api.sandbox.getmeru.com/v1/payins/qr-code")
  .header("api-key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"orderId\": \"<string>\",\n  \"amount\": 123,\n  \"currency\": \"<string>\",\n  \"externalId\": \"<string>\",\n  \"onBehalfOf\": \"<string>\",\n  \"taxAmount\": 123,\n  \"expireAt\": \"<string>\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://stablecoin-api.sandbox.getmeru.com/v1/payins/qr-code")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["api-key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"orderId\": \"<string>\",\n  \"amount\": 123,\n  \"currency\": \"<string>\",\n  \"externalId\": \"<string>\",\n  \"onBehalfOf\": \"<string>\",\n  \"taxAmount\": 123,\n  \"expireAt\": \"<string>\"\n}"

response = http.request(request)
puts response.read_body

{
  "success": false,
  "error": "externalId was already used"
}

The response always includes a renderable qrCode image. Depending on the currency, additional fields are returned:

BRL → PIX copy-and-paste code in brCode.
BOB → QR payload string in qrPayload.
Any other value (default USD) → default QR with no extra fields.

Body

string

required

Merchant’s order reference.

number

required

Amount to collect, expressed in currency. Must be at least 0.01.

string

default:"USD"

Currency code that determines the payin code type: BRL returns a PIX code, BOB returns a QR code, and any other value returns a default QR.

string

Reference used for idempotency. If omitted, it defaults to orderId.

string

Sub-merchant or payer reference.

number

Tax portion included in the amount (if applicable). Must be 0 or greater.

string

Expiration timestamp (ISO-8601). Defaults to 30 minutes from creation and may not exceed 24 hours.

Response

boolean

Indicates whether the payin code was generated successfully.

string

The unique payment identifier, formatted as payin_<uuid>. Use it to look up the payin status.

string

The renderable QR image, encoded as a data URL.

string

The ISO-8601 timestamp when the payin code expires.

string

The PIX copy-and-paste code. Present when currency is BRL.

string

The raw QR payload string. Present when a QR code is generated (for example, BOB).

Examples

The following examples show the three routing variants. Use placeholder values only.

curl --location --request POST 'https://stablecoin-api.sandbox.getmeru.com/v1/payins/qr-code' \
--header 'Content-Type: application/json' \
--data-raw '{
    "orderId": "ORD-12345",
    "amount": 150.00,
    "currency": "BRL",
    "externalId": "EXT-10001",
    "onBehalfOf": "sub_merchant_001",
    "taxAmount": 5.00,
    "expireAt": "2026-06-28T12:30:00.000Z"
}'

curl --location --request POST 'https://stablecoin-api.sandbox.getmeru.com/v1/payins/qr-code' \
--header 'Content-Type: application/json' \
--data-raw '{
    "orderId": "ORD-12346",
    "amount": 200.00,
    "currency": "BOB",
    "externalId": "EXT-10002",
    "onBehalfOf": "sub_merchant_002"
}'

curl --location --request POST 'https://stablecoin-api.sandbox.getmeru.com/v1/payins/qr-code' \
--header 'Content-Type: application/json' \
--data-raw '{
    "orderId": "ORD-12347",
    "amount": 99.99
}'

{
  "success": true,
  "paymentId": "payin_3ddd0e5b-6276-4b48-b756-c1fcc9a2efd1",
  "qrCode": "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAA...",
  "expireAt": "2026-06-28T12:30:00.000Z",
  "brCode": "00020126580014br.gov.bcb.pix0136123e4567-e12b-12d1-a456-426655440000520400005303986540515.005802BR5913Merchant Name6009Sao Paulo62070503***6304ABCD"
}

{
  "success": true,
  "paymentId": "payin_7af2c1e0-9b34-4c1a-8d22-1f0e9a6b5c44",
  "qrCode": "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAA...",
  "expireAt": "2026-06-28T12:30:00.000Z",
  "qrPayload": "00020101021226330014bo.example.qr01081234567852040000530306854062000.005802BO6304E1F2"
}

{
  "success": true,
  "paymentId": "payin_c91b8d44-2e7f-4f55-9a01-6d3b2e8f1a90",
  "qrCode": "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAA...",
  "expireAt": "2026-06-28T12:30:00.000Z"
}

Error Responses

{
  "success": false,
  "error": "externalId was already used"
}

API Documentation

Guides

Balances

Quotes

Payouts

Payins

Checkout

Cards

Webhooks

Generate a Payin Code

Body

Response

Examples

Error Responses

​Body

​Response

​Examples

​Error Responses

Body

Response

Examples

Error Responses