Add MercadoPago payment method.

core/src/main/java/bisq/core/payment/MercadoPagoAccount.java

@@ -0,0 +1,107 @@
+/*
+ * This file is part of Bisq.
+ *
+ * Bisq is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or (at
+ * your option) any later version.
+ *
+ * Bisq is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with Bisq. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package bisq.core.payment;
+
+import bisq.core.locale.Country;
+import bisq.core.locale.CountryUtil;
+import bisq.core.locale.CurrencyUtil;
+import bisq.core.locale.Res;
+import bisq.core.locale.TradeCurrency;
+import bisq.core.payment.payload.MercadoPagoAccountPayload;
+import bisq.core.payment.payload.PaymentAccountPayload;
+import bisq.core.payment.payload.PaymentMethod;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.Optional;
+import java.util.stream.Collectors;
+
+import lombok.NonNull;
+
+public final class MercadoPagoAccount extends CountryBasedPaymentAccount {
+    private static final String[] SUPPORTED_COUNTRIES = {"AR"};
+        // other countries can be added later: "BR", "CL", "CO", "MX", "PE", "UY"
+
+    private static final String[] MERCADO_PAGO_SITES = {
+        "https://www.mercadopago.com.ar/"
+        // shown when user is prompted to make payment.
+        // other country specific sites can be added, see https://github.com/bisq-network/growth/issues/278
+    };
+
+    public static String countryToMercadoPagoSite(String countryCode) {
+        int index = Arrays.stream(SUPPORTED_COUNTRIES).collect(Collectors.toList()).indexOf(countryCode);
+        return index >= 0 ? MERCADO_PAGO_SITES[index] : Res.get("payment.ask");
+    }
+
+    public static List<Country> getAllMercadoPagoCountries() {
+        return Arrays.stream(SUPPORTED_COUNTRIES)
+                .map(CountryUtil::findCountryByCode)
+                .flatMap(Optional::stream)
+                .collect(Collectors.toList());
+    }
+
+    public static List<TradeCurrency> SUPPORTED_CURRENCIES() {
+        return Arrays.stream(SUPPORTED_COUNTRIES)
+                .map(CurrencyUtil::getCurrencyByCountryCode)
+                .collect(Collectors.toList());
+    }
+
+    public MercadoPagoAccount() {
+        super(PaymentMethod.MERCADO_PAGO);
+    }
+
+    @Override
+    protected PaymentAccountPayload createPayload() {
+        return new MercadoPagoAccountPayload(paymentMethod.getId(), id);
+    }
+
+    @Override
+    public @NonNull List<TradeCurrency> getSupportedCurrencies() {
+        return SUPPORTED_CURRENCIES();
+    }
+
+    public String getMessageForBuyer() {
+        return "payment.generic.info.buyer";
+    }
+
+    public String getMessageForSeller() {
+        return "payment.generic.info.seller";
+    }
+
+    public String getMessageForAccountCreation() {
+        return "payment.mercadoPago.info.account";
+    }
+
+    public String getAccountHolderId() {
+        return ((MercadoPagoAccountPayload) paymentAccountPayload).getAccountHolderId();
+    }
+
+    public void setAccountHolderId(String id) {
+        if (id == null) id = "";
+        ((MercadoPagoAccountPayload) paymentAccountPayload).setAccountHolderId(id);
+    }
+
+    public String getAccountHolderName() {
+        return ((MercadoPagoAccountPayload) paymentAccountPayload).getAccountHolderName();
+    }
+
+    public void setAccountHolderName(String accountHolderName) {
+        if (accountHolderName == null) accountHolderName = "";
+        ((MercadoPagoAccountPayload) paymentAccountPayload).setAccountHolderName(accountHolderName);
+    }
+}

core/src/main/java/bisq/core/payment/PaymentAccountFactory.java

@@ -130,6 +130,8 @@ public class PaymentAccountFactory {
                 return new DomesticWireTransferAccount();
             case PaymentMethod.BSQ_SWAP_ID:
                 return new BsqSwapAccount();
+            case PaymentMethod.MERCADO_PAGO_ID:
+                return new MercadoPagoAccount();
 
             // Cannot be deleted as it would break old trade history entries
             case PaymentMethod.OK_PAY_ID:

core/src/main/java/bisq/core/payment/PaymentAccountUtil.java

@@ -214,6 +214,8 @@ public class PaymentAccountUtil {
                 return TransferwiseUsdAccount.SUPPORTED_CURRENCIES;
             case VERSE_ID:
                 return VerseAccount.SUPPORTED_CURRENCIES;
+            case MERCADO_PAGO_ID:
+                return MercadoPagoAccount.SUPPORTED_CURRENCIES();
             default:
                 return Collections.emptyList();
         }

core/src/main/java/bisq/core/payment/payload/MercadoPagoAccountPayload.java

@@ -0,0 +1,103 @@
+/*
+ * This file is part of Bisq.
+ *
+ * Bisq is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or (at
+ * your option) any later version.
+ *
+ * Bisq is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with Bisq. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package bisq.core.payment.payload;
+
+import bisq.core.locale.Res;
+import com.google.protobuf.Message;
+import java.nio.charset.StandardCharsets;
+import java.util.HashMap;
+import java.util.Map;
+
+import lombok.EqualsAndHashCode;
+import lombok.Getter;
+import lombok.Setter;
+import lombok.ToString;
+import lombok.extern.slf4j.Slf4j;
+
+@EqualsAndHashCode(callSuper = true)
+@ToString
+@Setter
+@Getter
+@Slf4j
+public final class MercadoPagoAccountPayload extends CountryBasedPaymentAccountPayload {
+    private String accountHolderName = "";
+    private String accountHolderId = "";
+
+    public MercadoPagoAccountPayload(String paymentMethod, String id) {
+        super(paymentMethod, id);
+    }
+
+    private MercadoPagoAccountPayload(String paymentMethod,
+                                         String id,
+                                         String countryCode,
+                                         String accountHolderName,
+                                         String accountHolderId,
+                                         long maxTradePeriod,
+                                         Map<String, String> excludeFromJsonDataMap) {
+        super(paymentMethod,
+                id,
+                countryCode,
+                maxTradePeriod,
+                excludeFromJsonDataMap);
+
+        this.accountHolderName = accountHolderName;
+        this.accountHolderId = accountHolderId;
+    }
+
+    @Override
+    public Message toProtoMessage() {
+        protobuf.MercadoPagoAccountPayload.Builder builder = protobuf.MercadoPagoAccountPayload.newBuilder()
+                .setHolderName(accountHolderName)
+                .setHolderId(accountHolderId);
+        final protobuf.CountryBasedPaymentAccountPayload.Builder countryBasedPaymentAccountPayload = getPaymentAccountPayloadBuilder()
+                .getCountryBasedPaymentAccountPayloadBuilder()
+                .setMercadoPagoAccountPayload(builder);
+        return getPaymentAccountPayloadBuilder()
+                .setCountryBasedPaymentAccountPayload(countryBasedPaymentAccountPayload)
+                .build();
+    }
+
+    public static MercadoPagoAccountPayload fromProto(protobuf.PaymentAccountPayload proto) {
+        protobuf.CountryBasedPaymentAccountPayload countryBasedPaymentAccountPayload = proto.getCountryBasedPaymentAccountPayload();
+        protobuf.MercadoPagoAccountPayload mercadoPagoAccountPayloadPB = countryBasedPaymentAccountPayload.getMercadoPagoAccountPayload();
+        return new MercadoPagoAccountPayload(proto.getPaymentMethodId(),
+                proto.getId(),
+                countryBasedPaymentAccountPayload.getCountryCode(),
+                mercadoPagoAccountPayloadPB.getHolderName(),
+                mercadoPagoAccountPayloadPB.getHolderId(),
+                proto.getMaxTradePeriod(),
+                new HashMap<>(proto.getExcludeFromJsonDataMap()));
+    }
+
+    @Override
+    public String getPaymentDetails() {
+        return Res.get(paymentMethodId) + " - " + getPaymentDetailsForTradePopup().replace("\n", ", ");
+    }
+
+    @Override
+    public String getPaymentDetailsForTradePopup() {
+        return Res.get("payment.mercadoPago.holderId") + ": " + accountHolderId + "\n" +
+               Res.get("payment.account.owner") + ": " + accountHolderName;
+    }
+
+    @Override
+    public byte[] getAgeWitnessInputData() {
+        String all = this.accountHolderId + this.accountHolderName;
+        return super.getAgeWitnessInputData(all.getBytes(StandardCharsets.UTF_8));
+    }
+}

core/src/main/java/bisq/core/payment/payload/PaymentMethod.java

@@ -124,6 +124,7 @@ public final class PaymentMethod implements PersistablePayload, Comparable<Payme
     public static final String ACH_TRANSFER_ID = "ACH_TRANSFER";
     public static final String DOMESTIC_WIRE_TRANSFER_ID = "DOMESTIC_WIRE_TRANSFER";
     public static final String BSQ_SWAP_ID = "BSQ_SWAP";
+    public static final String MERCADO_PAGO_ID = "MERCADO_PAGO";
 
     // Cannot be deleted as it would break old trade history entries
     @Deprecated
@@ -187,6 +188,7 @@ public final class PaymentMethod implements PersistablePayload, Comparable<Payme
     public static PaymentMethod ACH_TRANSFER;
     public static PaymentMethod DOMESTIC_WIRE_TRANSFER;
     public static PaymentMethod BSQ_SWAP;
+    public static PaymentMethod MERCADO_PAGO;
 
     // Cannot be deleted as it would break old trade history entries
     @Deprecated
@@ -265,6 +267,9 @@ public final class PaymentMethod implements PersistablePayload, Comparable<Payme
             // Australia
             AUSTRALIA_PAYID = new PaymentMethod(AUSTRALIA_PAYID_ID, DAY, DEFAULT_TRADE_LIMIT_LOW_RISK),
 
+            // Argentina
+            MERCADO_PAGO = new PaymentMethod(MERCADO_PAGO_ID, DAY, DEFAULT_TRADE_LIMIT_HIGH_RISK),
+
             // China
             ALI_PAY = new PaymentMethod(ALI_PAY_ID, DAY, DEFAULT_TRADE_LIMIT_LOW_RISK),
             WECHAT_PAY = new PaymentMethod(WECHAT_PAY_ID, DAY, DEFAULT_TRADE_LIMIT_LOW_RISK),

core/src/main/java/bisq/core/proto/CoreProtoResolver.java

@@ -44,6 +44,7 @@ import bisq.core.payment.payload.ImpsAccountPayload;
 import bisq.core.payment.payload.InstantCryptoCurrencyPayload;
 import bisq.core.payment.payload.InteracETransferAccountPayload;
 import bisq.core.payment.payload.JapanBankAccountPayload;
+import bisq.core.payment.payload.MercadoPagoAccountPayload;
 import bisq.core.payment.payload.MoneseAccountPayload;
 import bisq.core.payment.payload.MoneyBeamAccountPayload;
 import bisq.core.payment.payload.MoneyGramAccountPayload;
@@ -158,6 +159,8 @@ public class CoreProtoResolver implements ProtoResolver {
                             return StrikeAccountPayload.fromProto(proto);
                         case TRANSFERWISE_USD_ACCOUNT_PAYLOAD:
                             return TransferwiseUsdAccountPayload.fromProto(proto);
+                        case MERCADO_PAGO_ACCOUNT_PAYLOAD:
+                            return MercadoPagoAccountPayload.fromProto(proto);
                         case IFSC_BASED_ACCOUNT_PAYLOAD:
                             final protobuf.IfscBasedAccountPayload.MessageCase messageCaseIfsc = proto.getCountryBasedPaymentAccountPayload().getIfscBasedAccountPayload().getMessageCase();
                             switch (messageCaseIfsc) {

core/src/main/resources/i18n/displayStrings.properties

@@ -3750,6 +3750,7 @@ payment.account.owner.address=Account owner address
 payment.transferwiseUsd.address=(must be US-based, consider using bank address)
 
 payment.amazon.site=Buy giftcard at
+payment.mercadoPago.site=MercadoPago site
 payment.ask=Ask in Trader Chat
 payment.uphold.accountId=Username or email or phone no.
 payment.moneyBeam.accountId=Email or phone no.
@@ -4115,6 +4116,15 @@ payment.domesticWire.info.buyer=Please ensure you are aware of what it will cost
 payment.domesticWire.info.seller=Please ensure you are aware of what it will cost you to receive a wire transfer.\n\n\
   When receiving payment, please check that it is received from the BTC Buyer's account.
 
+payment.generic.info.buyer=Please send payment only to the user details provided by the BTC Seller in their Bisq account. Please leave the payment description blank.
+payment.generic.info.seller=BTC Sellers should expect to receive payment from the name shown in the BTC Buyer's Bisq account.
+
+payment.mercadoPago.info.account=MercadoPago (Argentina) is a payment app that allows users to send money to other \
+  MercadoPago accounts instantly and for free in ARS. \n\n\
+  When setting up your MercadoPago account in Bisq please make sure to include your full name and phone number, email \
+  or CVU that matches your MercadoPago account. This will ensure that when you send funds they show from the correct \
+  account and when you receive funds they will be credited to your account.
+
 payment.strike.info.account=Please make sure to include your Strike username.\n\n\
 In Bisq, Strike is used for fiat to fiat payments only.\n\n\
 Please make sure you are aware of the Strike limits:\n\n\
@@ -4229,6 +4239,7 @@ payment.amazonGiftCard.info=To pay with Amazon eGift Card, you will need to send
   - try to use creative, believable text for the gift card''s message (e.g., "Happy birthday Susan!") and use trader chat \
   to tell your trading peer the reference text you picked so they can verify your payment\n\
   - Amazon eGift Cards can only be redeemed on the Amazon website they were purchased on (e.g., a gift card purchased on amazon.it can only be redeemed on amazon.it)
+payment.mercado_pago.holderId=UserID linked to financial institution. Like phone number or email or CVU.
 
 # We use constants from the code so we do not use our normal naming convention
 # dynamic values are not recognized by IntelliJ
@@ -4356,6 +4367,8 @@ ACH_TRANSFER=ACH Transfer
 DOMESTIC_WIRE_TRANSFER=Domestic Wire Transfer
 # suppress inspection "UnusedProperty"
 BSQ_SWAP=BSQ Swap
+# suppress inspection "UnusedProperty"
+MERCADO_PAGO=MercadoPago
 
 # Deprecated: Cannot be deleted as it would break old trade history entries
 # suppress inspection "UnusedProperty"
@@ -4452,6 +4465,8 @@ ACH_TRANSFER_SHORT=ACH
 DOMESTIC_WIRE_TRANSFER_SHORT=Domestic Wire
 # suppress inspection "UnusedProperty"
 BSQ_SWAP_SHORT=BSQ Swap
+# suppress inspection "UnusedProperty"
+MERCADO_PAGO_SHORT=MercadoPago
 
 # Deprecated: Cannot be deleted as it would break old trade history entries
 # suppress inspection "UnusedProperty"

desktop/src/main/java/bisq/desktop/components/paymentmethods/MercadoPagoForm.java

@@ -0,0 +1,154 @@
+/*
+ * This file is part of Bisq.
+ *
+ * Bisq is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or (at
+ * your option) any later version.
+ *
+ * Bisq is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with Bisq. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package bisq.desktop.components.paymentmethods;
+
+import bisq.desktop.components.InputTextField;
+import bisq.desktop.util.FormBuilder;
+
+import bisq.core.account.witness.AccountAgeWitnessService;
+import bisq.core.locale.Country;
+import bisq.core.locale.CountryUtil;
+import bisq.core.locale.CurrencyUtil;
+import bisq.core.locale.Res;
+import bisq.core.locale.TradeCurrency;
+import bisq.core.payment.MercadoPagoAccount;
+import bisq.core.payment.PaymentAccount;
+import bisq.core.payment.payload.MercadoPagoAccountPayload;
+import bisq.core.payment.payload.PaymentAccountPayload;
+import bisq.core.util.coin.CoinFormatter;
+import bisq.core.util.validation.InputValidator;
+
+import bisq.common.UserThread;
+
+import javafx.scene.control.ComboBox;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.GridPane;
+
+import javafx.collections.FXCollections;
+
+import javafx.util.StringConverter;
+
+import static bisq.desktop.util.FormBuilder.*;
+
+public class MercadoPagoForm extends PaymentMethodForm {
+    private final MercadoPagoAccount mercadoPagoAccount;
+    ComboBox<Country> countryCombo;
+
+    public static int addFormForBuyer(GridPane gridPane, int gridRow, PaymentAccountPayload paymentAccountPayload) {
+        MercadoPagoAccountPayload mercadoPagoAccountPayload = (MercadoPagoAccountPayload) paymentAccountPayload;
+
+        addCompactTopLabelTextField(gridPane, ++gridRow, Res.get("payment.account.owner"),
+                mercadoPagoAccountPayload.getAccountHolderName());
+        addCompactTopLabelTextField(gridPane, gridRow, 1, Res.get("shared.country"),
+                CountryUtil.getNameAndCode(mercadoPagoAccountPayload.getCountryCode()));
+        addCompactTopLabelTextField(gridPane, ++gridRow, Res.get("payment.mercado_pago.holderId"),
+                mercadoPagoAccountPayload.getAccountHolderId());
+        addCompactTopLabelTextField(gridPane, gridRow, 1, Res.get("payment.mercadoPago.site"),
+                MercadoPagoAccount.countryToMercadoPagoSite(mercadoPagoAccountPayload.getCountryCode()));
+        return gridRow;
+    }
+
+    public MercadoPagoForm(PaymentAccount paymentAccount,
+                              AccountAgeWitnessService accountAgeWitnessService,
+                              InputValidator inputValidator,
+                              GridPane gridPane,
+                              int gridRow,
+                              CoinFormatter formatter) {
+        super(paymentAccount, accountAgeWitnessService, inputValidator, gridPane, gridRow, formatter);
+        this.mercadoPagoAccount = (MercadoPagoAccount) paymentAccount;
+    }
+
+    @Override
+    public void addFormForAddAccount() {
+        gridRowFrom = gridRow + 1;
+
+        InputTextField holderNameInputTextField = FormBuilder.addInputTextField(gridPane, ++gridRow,
+                Res.get("payment.account.owner"));
+        holderNameInputTextField.setValidator(inputValidator);
+        holderNameInputTextField.textProperty().addListener((ov, oldValue, newValue) -> {
+            mercadoPagoAccount.setAccountHolderName(newValue);
+            updateFromInputs();
+        });
+
+        InputTextField mobileNrInputTextField = FormBuilder.addInputTextField(gridPane, ++gridRow, Res.get("payment.mercado_pago.holderId"));
+        mobileNrInputTextField.textProperty().addListener((ov, oldValue, newValue) -> {
+            mercadoPagoAccount.setAccountHolderId(newValue);
+            updateFromInputs();
+        });
+
+        countryCombo = addComboBox(gridPane, ++gridRow, Res.get("shared.country"));
+        countryCombo.setPromptText(Res.get("payment.select.country"));
+        countryCombo.setItems(FXCollections.observableArrayList(MercadoPagoAccount.getAllMercadoPagoCountries()));
+        TextField ccyField = addCompactTopLabelTextField(gridPane, ++gridRow, Res.get("shared.currency"), "").second;
+        countryCombo.setConverter(new StringConverter<>() {
+            @Override
+            public String toString(Country country) {
+                return country.name + " (" + country.code + ")";
+            }
+            @Override
+            public Country fromString(String s) {
+                return null;
+            }
+        });
+        countryCombo.setOnAction(e -> {
+            Country countryCode = countryCombo.getValue();
+            mercadoPagoAccount.setCountry(countryCode);
+            TradeCurrency currency = CurrencyUtil.getCurrencyByCountryCode(countryCode.code);
+            paymentAccount.setSingleTradeCurrency(currency);
+            ccyField.setText(currency.getNameAndCode());
+            updateFromInputs();
+        });
+        if (countryCombo.getItems().size() == 1) {  // auto select when only one choice
+            UserThread.runAfter(() -> countryCombo.setValue(countryCombo.getItems().get(0)), 1);
+        }
+
+        addLimitations(false);
+        addAccountNameTextFieldWithAutoFillToggleButton();
+    }
+
+    @Override
+    protected void autoFillNameTextField() {
+        setAccountNameWithString(mercadoPagoAccount.getAccountHolderId());
+    }
+
+    @Override
+    public void addFormForEditAccount() {
+        gridRowFrom = gridRow;
+        addAccountNameTextFieldWithAutoFillToggleButton();
+        addCompactTopLabelTextField(gridPane, ++gridRow, Res.get("shared.paymentMethod"),
+                Res.get(mercadoPagoAccount.getPaymentMethod().getId()));
+        addCompactTopLabelTextField(gridPane, ++gridRow, Res.get("payment.account.owner"),
+                mercadoPagoAccount.getAccountHolderName());
+        addCompactTopLabelTextField(gridPane, ++gridRow, Res.get("payment.mercado_pago.holderId"),
+                mercadoPagoAccount.getAccountHolderId());
+        addCompactTopLabelTextField(gridPane, ++gridRow, Res.get("payment.country"),
+                mercadoPagoAccount.getCountry() != null ? mercadoPagoAccount.getCountry().name : "");
+        TradeCurrency singleTradeCurrency = mercadoPagoAccount.getSingleTradeCurrency();
+        String nameAndCode = singleTradeCurrency != null ? singleTradeCurrency.getNameAndCode() : "null";
+        addCompactTopLabelTextField(gridPane, ++gridRow, Res.get("shared.currency"), nameAndCode);
+        addLimitations(true);
+    }
+
+    @Override
+    public void updateAllInputsValid() {
+        allInputsValid.set(isAccountNameValid()
+                && inputValidator.validate(mercadoPagoAccount.getAccountHolderId()).isValid
+                && inputValidator.validate(mercadoPagoAccount.getAccountHolderName()).isValid
+                && mercadoPagoAccount.getTradeCurrencies().size() > 0);
+    }
+}

desktop/src/main/java/bisq/desktop/main/account/content/fiataccounts/FiatAccountsView.java

@@ -39,6 +39,7 @@ import bisq.desktop.components.paymentmethods.HalCashForm;
 import bisq.desktop.components.paymentmethods.ImpsForm;
 import bisq.desktop.components.paymentmethods.InteracETransferForm;
 import bisq.desktop.components.paymentmethods.JapanBankTransferForm;
+import bisq.desktop.components.paymentmethods.MercadoPagoForm;
 import bisq.desktop.components.paymentmethods.MoneseForm;
 import bisq.desktop.components.paymentmethods.MoneyBeamForm;
 import bisq.desktop.components.paymentmethods.MoneyGramForm;
@@ -690,6 +691,8 @@ public class FiatAccountsView extends PaymentAccountsView<GridPane, FiatAccounts
                 return new AchTransferForm(paymentAccount, accountAgeWitnessService, inputValidator, root, gridRow, formatter);
             case PaymentMethod.DOMESTIC_WIRE_TRANSFER_ID:
                 return new DomesticWireTransferForm(paymentAccount, accountAgeWitnessService, inputValidator, root, gridRow, formatter);
+            case PaymentMethod.MERCADO_PAGO_ID:
+                return new MercadoPagoForm(paymentAccount, accountAgeWitnessService, inputValidator, root, gridRow, formatter);
             default:
                 log.error("Not supported PaymentMethod: " + paymentMethod);
                 return null;

desktop/src/main/java/bisq/desktop/main/portfolio/pendingtrades/steps/buyer/BuyerStep2View.java

@@ -42,6 +42,7 @@ import bisq.desktop.components.paymentmethods.HalCashForm;
 import bisq.desktop.components.paymentmethods.ImpsForm;
 import bisq.desktop.components.paymentmethods.InteracETransferForm;
 import bisq.desktop.components.paymentmethods.JapanBankTransferForm;
+import bisq.desktop.components.paymentmethods.MercadoPagoForm;
 import bisq.desktop.components.paymentmethods.MoneseForm;
 import bisq.desktop.components.paymentmethods.MoneyBeamForm;
 import bisq.desktop.components.paymentmethods.MoneyGramForm;
@@ -426,6 +427,9 @@ public class BuyerStep2View extends TradeStepView {
             case PaymentMethod.DOMESTIC_WIRE_TRANSFER_ID:
                 gridRow = DomesticWireTransferForm.addFormForBuyer(gridPane, gridRow, paymentAccountPayload);
                 break;
+            case PaymentMethod.MERCADO_PAGO_ID:
+                gridRow = MercadoPagoForm.addFormForBuyer(gridPane, gridRow, paymentAccountPayload);
+                break;
             default:
                 log.error("Not supported PaymentMethod: " + paymentMethodId);
         }

proto/src/main/proto/pb.proto

@@ -1140,6 +1140,7 @@ message CountryBasedPaymentAccountPayload {
         StrikeAccountPayload strike_account_payload = 16;
         TikkieAccountPayload tikkie_account_payload = 17;
         TransferwiseUsdAccountPayload transferwise_usd_account_payload = 18;
+        MercadoPagoAccountPayload mercado_pago_account_payload = 19;
     }
 }
 
@@ -1427,6 +1428,11 @@ message VerseAccountPayload {
     string holder_name = 1;
 }
 
+message MercadoPagoAccountPayload {
+    string holder_name = 1;
+    string holder_id = 2;
+}
+
 message SwiftAccountPayload {
     string beneficiary_name = 1;
     string beneficiary_account_nr = 2;