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Tapi Cash is a cash payment method by Mattilda that allows buyers in Latin America to pay using cash vouchers. Tapi uses a redirect flow where the buyer receives payment instructions.
This connector is a custom integration for Mattilda and is only available to enrolled users. Contact Mattilda directly to begin the onboarding process.

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Setup

Contact the Tapi account manager to obtain credentials.

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Credentials

When setting up Tapi Cash in the dashboard, configure the following credentials:
  • Username - The Tapi username.
  • Password - The Tapi password.
  • Login API key - The API key for the /login endpoint.
  • References API key - The API key used to create and retrieve reference data via the /reference endpoint.
  • Approval URL - The custom frontend URL provided by Mattilda.
  • Tapi Modality ID - The identifier of the payment modality used in the transaction.
  • Tapi company code - The company code associated with the operation.
  • Tapi identifier name (optional) - The identifier name associated with the operation.

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Capabilities

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Supported countries

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Supported currencies

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Webhooks

Tapi requires manual webhook setup. Contact Mattilda to request the webhook URL and configure it for your account. Tapi sends the following webhook events:
  • confirmed - The payment was successfully captured.
  • failed - The payment could not be processed or was rejected.
  • reverse - A retraction of a previous capture event. This indicates the capture did not actually complete on Tapi’s side. Mattilda handles the reversal by triggering a full refund to align the transaction state.
A reversal is not a real refund at the PSP level. It marks the transaction as reversed in alignment with Tapi’s state.

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Integration

The default integration for Tapi Cash uses a redirect flow. Start by creating a new transaction with the following required fields. 
var transaction = await client.Transactions.CreateAsync(
  transactionCreate: new TransactionCreate()
  {
    Amount = 1299,
    Currency = "MXN",
    Country = "MX",
    PaymentMethod =
      TransactionCreatePaymentMethod.CreateRedirectPaymentMethodCreate(
        new RedirectPaymentMethodCreate()
        {
          Method = "tapi",
          Country = "MX",
          Currency = "MXN",
          RedirectUrl = "https://example.com/callback",
        }
      ),
  }
);

amount := int64(1299)
currency := "MXN"
country := "MX"
method := components.RedirectPaymentMethodCreateMethodTapi
redirectUrl := "https://example.com/callback"

redirectPaymentMethodCreate := components.RedirectPaymentMethodCreate{
  Method: method,
  Country: country,
  Currency: currency,
  RedirectURL: redirectUrl,
}
paymentMethod := components.CreateTransactionCreatePaymentMethodRedirectPaymentMethodCreate(redirectPaymentMethodCreate)

transactionCreate := components.TransactionCreate{
  Amount:        amount,
  Currency:      currency,
  Country:       &country,
  PaymentMethod: &paymentMethod,
}

transaction, err := client.Transactions.Create(ctx, transactionCreate, nil, nil, nil)

CreateTransactionResponse transactionResponse = gr4vyClient.transactions().create()
  .transactionCreate(TransactionCreate.builder()
    .amount(1299L)
    .currency("MXN")
    .country("MX")
    .paymentMethod(TransactionCreatePaymentMethod.of(RedirectPaymentMethodCreate.builder()
      .method(RedirectPaymentMethodCreateMethod.TAPI)
      .country("MX")
      .currency("MXN")
      .redirectUrl("https://example.com/callback")
      .build()))
    .build())
  .call();

Transaction transaction = transactionResponse.transaction().orElse(null);

$transactionCreate = new TransactionCreate(
  amount: 1299,
  currency: 'MXN',
  country: 'MX',
  paymentMethod: new RedirectPaymentMethodCreate(
    method: 'tapi',
    country: 'MX',
    currency: 'MXN',
    redirectUrl: 'https://example.com/callback'
  )
);
$response = $client->transactions->create($transactionCreate);
$transaction = $response->transaction;

transaction: models.Transaction = client.transactions.create(
  amount=1299,
  currency="MXN",
  country="MX",
  payment_method={
    "method": "tapi",
    "country": "MX",
    "currency": "MXN",
    "redirect_url": "https://example.com/callback",
  }
)

const transaction = await client.transactions.create({
  amount: 1299,
  currency: "MXN",
  country: "MX",
  paymentMethod: {
    method: "tapi",
    country: "MX",
    currency: "MXN",
    redirectUrl: "https://example.com/callback"
  }
})
After the transaction is created, the status is set to processing. The payment reference expires after 7 days. 
{
  "type": "transaction",
  "id": "ea1efdd0-20f9-44d9-9b0b-0a3d71e9b625",
  "payment_method": {
    "type": "payment-method",
    "approval_url": "https://cdn.gr4vy.com/connectors/..."
  },
  "method": "tapi"
}
Redirect the buyer to the approval_url where they receive payment instructions. Once payment is confirmed through a webhook, the transaction progresses to a capture_succeeded state.

​
Custom expiration date

You can control when a Tapi payment reference expires using two approaches:
  • Top-level approval_expires_at: Set the expiration directly on the transaction request using an ISO 8601 datetime value.
  • connection_options.payment_method_expires_at: Override the expiration at the connector level using a YYYY-MM-DD date string.
When both are provided, connection_options.payment_method_expires_at takes priority. If neither is set, the reference expires after 7 days. To use the top-level field, include approval_expires_at in your transaction request. 
var transaction = await client.Transactions.CreateAsync(
  transactionCreate: new TransactionCreate()
  {
    Amount = 1299,
    Currency = "MXN",
    ApprovalExpiresAt = DateTimeOffset.Parse("2026-04-10T23:59:59Z"),
    PaymentMethod =
      TransactionCreatePaymentMethod.CreateRedirectPaymentMethodCreate(
        new RedirectPaymentMethodCreate()
        {
          Method = "tapi",
          Country = "MX",
          Currency = "MXN",
          RedirectUrl = "https://example.com/callback",
        }
      ),
  }
);

transactionCreate := components.TransactionCreate{
  Amount:            amount,
  Currency:          currency,
  Country:           &country,
  PaymentMethod:     &paymentMethod,
  ApprovalExpiresAt: gr4vy.Time(time.Date(2026, 4, 10, 23, 59, 59, 0, time.UTC)),
}

transaction, err := client.Transactions.Create(ctx, transactionCreate, nil, nil, nil)

CreateTransactionResponse transactionResponse = gr4vyClient.transactions().create()
  .transactionCreate(TransactionCreate.builder()
    .amount(1299L)
    .currency("MXN")
    .approvalExpiresAt(OffsetDateTime.parse("2026-04-10T23:59:59Z"))
    .paymentMethod(TransactionCreatePaymentMethod.of(RedirectPaymentMethodCreate.builder()
      .method(RedirectPaymentMethodCreateMethod.TAPI)
      .country("MX")
      .currency("MXN")
      .redirectUrl("https://example.com/callback")
      .build()))
    .build())
  .call();

$transactionCreate = new TransactionCreate(
  amount: 1299,
  currency: 'MXN',
  country: 'MX',
  approvalExpiresAt: new \DateTime('2026-04-10T23:59:59Z'),
  paymentMethod: new RedirectPaymentMethodCreate(
    method: 'tapi',
    country: 'MX',
    currency: 'MXN',
    redirectUrl: 'https://example.com/callback'
  )
);
$response = $client->transactions->create($transactionCreate);

transaction: models.Transaction = client.transactions.create(
  amount=1299,
  currency="MXN",
  country="MX",
  approval_expires_at=datetime(2026, 4, 10, 23, 59, 59, tzinfo=timezone.utc),
  payment_method={
    "method": "tapi",
    "country": "MX",
    "currency": "MXN",
    "redirect_url": "https://example.com/callback",
  }
)

const transaction = await client.transactions.create({
  amount: 1299,
  currency: "MXN",
  country: "MX",
  approvalExpiresAt: new Date("2026-04-10T23:59:59Z"),
  paymentMethod: {
    method: "tapi",
    country: "MX",
    currency: "MXN",
    redirectUrl: "https://example.com/callback"
  }
})

​
Connection options

The Tapi connector also supports passing a payment expiration date via connection_options. This takes priority over the top-level approval_expires_at field. 
var transaction = await client.Transactions.CreateAsync(
  transactionCreate: new TransactionCreate()
  {
    Amount = 1299,
    Currency = "MXN",
    ConnectionOptions = new TransactionCreateConnectionOptions()
    {
      MattildaTapi = new ConnectionOptionsMattildaTapi()
      {
        PaymentMethodExpiresAt = "2026-03-27",
      },
    },
    PaymentMethod =
      TransactionCreatePaymentMethod.CreateRedirectPaymentMethodCreate(
        new RedirectPaymentMethodCreate()
        {
          Method = "tapi",
          Country = "MX",
          Currency = "MXN",
          RedirectUrl = "https://example.com/callback",
        }
      ),
  }
);

connectionOptions := components.TransactionCreateConnectionOptions{
  MattildaTapi: &components.ConnectionOptionsMattildaTapi{
    PaymentMethodExpiresAt: gr4vy.String("2026-03-27"),
  },
}

transactionCreate := components.TransactionCreate{
  Amount:            amount,
  Currency:          currency,
  Country:           &country,
  ConnectionOptions: &connectionOptions,
  PaymentMethod:     &paymentMethod,
}

transaction, err := client.Transactions.Create(ctx, transactionCreate, nil, nil, nil)

CreateTransactionResponse transactionResponse = gr4vyClient.transactions().create()
  .transactionCreate(TransactionCreate.builder()
    .amount(1299L)
    .currency("MXN")
    .connectionOptions(TransactionCreateConnectionOptions.builder()
      .mattildaTapi(ConnectionOptionsMattildaTapi.builder()
        .paymentMethodExpiresAt("2026-03-27")
        .build())
      .build())
    .paymentMethod(TransactionCreatePaymentMethod.of(RedirectPaymentMethodCreate.builder()
      .method(RedirectPaymentMethodCreateMethod.TAPI)
      .country("MX")
      .currency("MXN")
      .redirectUrl("https://example.com/callback")
      .build()))
    .build())
  .call();

$transactionCreate = new TransactionCreate(
  amount: 1299,
  currency: 'MXN',
  country: 'MX',
  connectionOptions: new TransactionCreateConnectionOptions(
    mattildaTapi: new ConnectionOptionsMattildaTapi(
      paymentMethodExpiresAt: '2026-03-27'
    )
  ),
  paymentMethod: new RedirectPaymentMethodCreate(
    method: 'tapi',
    country: 'MX',
    currency: 'MXN',
    redirectUrl: 'https://example.com/callback'
  )
);
$response = $client->transactions->create($transactionCreate);

transaction: models.Transaction = client.transactions.create(
  amount=1299,
  currency="MXN",
  country="MX",
  connection_options={
    "mattilda-tapi": {
      "payment_method_expires_at": "2026-03-27",
    },
  },
  payment_method={
    "method": "tapi",
    "country": "MX",
    "currency": "MXN",
    "redirect_url": "https://example.com/callback",
  }
)

const transaction = await client.transactions.create({
  amount: 1299,
  currency: "MXN",
  country: "MX",
  connectionOptions: {
    "mattilda-tapi": {
      paymentMethodExpiresAt: "2026-03-27",
    },
  },
  paymentMethod: {
    method: "tapi",
    country: "MX",
    currency: "MXN",
    redirectUrl: "https://example.com/callback"
  }
})
The payment_method_expires_at field must be in ISO 8601 format (YYYY-MM-DD). If not specified, it defaults to 7 days from the transaction creation date.