Pix

payment.create({ body: {
	transaction_amount: 12.34,
	description: '<DESCRIPTION>',
	payment_method_id: 'pix',
	payer: {
		email: '<EMAIL>'
	}}, requestOptions: { idempotencyKey: '<SOME_UNIQUE_VALUE>' } 
}).then(console.log).catch(console.log);

Map<String, String> customHeaders = new HashMap<>();
    customHeaders.put("x-idempotency-key", <SOME_UNIQUE_VALUE>);
 
MPRequestOptions requestOptions = MPRequestOptions.builder()
    .customHeaders(customHeaders)
    .build();

MercadoPagoConfig.setAccessToken("ENV_ACCESS_TOKEN");

PaymentClient client = new PaymentClient();

PaymentCreateRequest paymentCreateRequest =
   PaymentCreateRequest.builder()
       .transactionAmount(new BigDecimal("100"))
       .paymentMethodId("pix")
       .payer(
           PaymentPayerRequest.builder()
               .email("PAYER_EMAIL_HERE")
               .build())
       .build();

client.create(paymentCreateRequest, requestOptions);

require 'mercadopago'
sdk = Mercadopago::SDK.new('ENV_ACCESS_TOKEN')

custom_headers = {
 'x-idempotency-key': '<SOME_UNIQUE_VALUE>'
}

custom_request_options = Mercadopago::RequestOptions.new(custom_headers: custom_headers)

payment_request = {
  transaction_amount: 100,
  payment_method_id: 'pix',
  payer: {
    email: 'PAYER_EMAIL_HERE',
  }
}

payment_response = sdk.payment.create(payment_request, custom_request_options)
payment = payment_response[:response]

using MercadoPago.Config;
using MercadoPago.Client.Common;
using MercadoPago.Client.Payment;
using MercadoPago.Resource.Payment;

MercadoPagoConfig.AccessToken = "ENV_ACCESS_TOKEN";

var requestOptions = new RequestOptions();
requestOptions.CustomHeaders.Add("x-idempotency-key", "<SOME_UNIQUE_VALUE>");

var request = new PaymentCreateRequest
{
    TransactionAmount = 105,
    PaymentMethodId = "pix",
    Payer = new PaymentPayerRequest
    {
        Email = "PAYER_EMAIL_HERE",
    },
};

var client = new PaymentClient();
Payment payment = await client.CreateAsync(request, requestOptions);

import mercadopago
sdk = mercadopago.SDK("ENV_ACCESS_TOKEN")

request_options = mercadopago.config.RequestOptions()
request_options.custom_headers = {
    'x-idempotency-key': '<SOME_UNIQUE_VALUE>'
}

payment_data = {
    "transaction_amount": 100,
    "payment_method_id": "pix",
    "payer": {
        "email": "PAYER_EMAIL_HERE",
    }
}

payment_response = sdk.payment().create(payment_data, request_options)
payment = payment_response["response"]

curl -X POST \
    -H 'accept: application/json' \
    -H 'content-type: application/json' \
    -H 'Authorization: Bearer ENV_ACCESS_TOKEN' \
    -H 'X-Idempotency-Key: SOME_UNIQUE_VALUE' \
    'https://api.mercadopago.com/v1/payments' \
    -d '{
      "transaction_amount": 100,
      "description": "Título do produto",
      "payment_method_id": "pix",
      "payer": {
        "email": "PAYER_EMAIL",
        "first_name": "Test",
        "last_name": "User",
        "identification": {
            "type": "CPF",
            "number": "19119119100"
        },
        "address": {
            "zip_code": "06233200",
            "street_name": "Av. das Nações Unidas",
            "street_number": "3003",
            "neighborhood": "Bonfim",
            "city": "Osasco",
            "federal_unit": "SP"
        }
      }
    }'