Guides

ISO Payments

The ISO Payments API allows you to initiate secure, structured payments by submitting payment instructions in JSON format from which an ISO 20022 pain.001 file is generated and uploaded to the online bank for authorization.

For requests to the PIS API, you need an access token with scope set to paymentinitiation corporate.

Initiating ISO payments in the production environment requires completed KYC verification on the PSU's organization. Refer to the KYC guide for information on how to implement this.

0. Create FX Quote (international TP only)

The international-tp product enables PSUs to initiate cross-currency payments to 180+ countries with built-in, real-time currency conversion — supporting both spot and forward exchange rates (up to 30 days). The first step for a cross-currency payment is to create an FX quote, defining the exchange rate, fees, and the validity period.

Endpoint

POST /psd2/paymentinitiation/v1/fx
http

Request Headers

NameTypeDescription
X-Request-IDstring(uuid)The ID of the request, unique to the call, as determined by the initiating party.

Request Headers

NameTypeDescription
X-Request-IDstring(uuid)The ID of the request, unique to the call, as determined by the initiating party.

Request Body

NameTypeDescription
sourceCurrencystringThe source currency.
targetCurrencystringThe target currency.
requestedExecutionDatestring(date)The requested execution date, for future payments.
countryCodestringThe target country.
amountstringThe requested amount.
curl -X POST "https://api.openbankingplatform.com/psd2/paymentinitiation/v1/fx" \
  -H "Authorization: Bearer eyJhbGciOiJSUzI1NiIsInR5cCIgOiAiSldUIn0..." \
  -H "Content-Type: application/json" \
  -H "X-Request-ID: 98afac01-e0bb-4aa2-95fd-0b3204f8a183" \
  -d '{
    "sourceCurrency": "SEK",
    "targetCurrency": "EUR", 
    "requestedExecutionDate": "2026-01-01",
    "countryCode": "NL", 
    "amount": "130.00" 
    }'
bash

Response

{
  "fxQuoteId": "F100000PFM",
  "fxRate": "10.87410000",
  "fee": "1.50",
  "totalAmount": "110.25",
  "validFrom": "2024-08-23T14:12:57Z",
  "validTo": "2024-08-24T14:12:57Z"
}
json

The response contains an fxQuoteId which you will need to reference in the request headers of the international-tp payment request.

1. Create Payment

This step is where you create the payment you wish to upload in file format.

domestic

Endpoint

POST /iso/payments
http

Request Headers

NameTypeDescription
X-Request-IDstringThe ID of the request, unique to the call, as determined by the initiating party.
X-BicFistringThe BIC of the bank to which the request is addressed.
PSU-IDstringThe ID used to identify the PSU at the bank. Typically a local social security number or another unique login ID.
PSU-Corporate-IDstringThe Corporate ID of the PSU when acting on behalf of an organization, e.g. Org. nummer for SE, KVK for NL.
PSU-IP-AddressstringThe IP address of the PSU to be forwarded to the bank. Only included if the request was actively initiated by the PSU.
PSU-User-AgentstringThe forwarded Agent header field of the HTTP request between PSU and TPP, if available.

Request Body

NameTypeDescription
instructedAmountobjectThe amount and currency of the money to be transferred.
debtorAccountobjectThe account from which the payment will be debited.
creditorNamestringThe full name of the payment recipient.
creditorAccountobjectThe account to which the payment will be credited.
creditorAgentstringThe BIC of the payment recipient's bank.
creditorAgentNamestringThe name of the payment recipient's bank.
requestedExecutionDatestringThe date when the payment is scheduled to be executed in ISO 8601 format, e.g. 2025-10-31.
remittanceInformationUnstructuredstringA free-text field for remittance information on the payment.
debtorAccountMessagestringA personal message from the payer to themselves.
curl -X POST "https://api.openbankingplatform.com/iso/payments" \
  -H "Accept: application/json" \
  -H "Authorization: Bearer <eyJhbGciOiJSUzI1NiIsInR5cCIgOiAiSldUIn0>..." \
  -H "Content-Type: application/json" \
  -H "X-Request-ID: 2e02a131-a35a-450f-a736-9a06086f3337" \
  -H "X-BicFi: ESSESESS" \
  -H "PSU-ID: 123456789001" \
  -H "PSU-Corporate-ID: 1234567890" \
  -H "PSU-IP-Address: 152.120.171.187" \
  -d '{
    "instructedAmount": {
      "currency": "SEK",
      "amount": "1230.50"
    },
    "debtorAccount": {
      "iban": "SE123456789000532811"
    },
    "creditorName": "Merchant 123",
    "creditorAccount": {
      "iban": "SE123456789000222333"
    },
    "creditorAgent": "HANDSESS", 
    "creditorAgentName": "Svenska Handelsbanken AB",
    "requestedExecutionDate": "2025-06-10",
    "remittanceInformationUnstructured": "Ref Number Merchant",
    "debtorAccountMessage": "Personal note"
    }'
bash
swedish-giro

Endpoint

POST /iso/payments
http

Request Headers

NameTypeDescription
X-Request-IDstring(uuid)The ID of the request, unique to the call, as determined by the initiating party.
X-BicFistringThe BIC of the bank to which the request is addressed.
PSU-IDstringThe ID used to identify the PSU at the bank. Typically a local social security number or another unique login ID.
PSU-Corporate-IDstringThe Corporate ID of the PSU when acting on behalf of an organization, e.g. Org. nummer for SE, KVK for NL.
PSU-IP-Addressstring(ipv4)The IP address of the PSU to be forwarded to the bank. Only included if the request was actively initiated by the PSU.
PSU-User-AgentstringThe forwarded Agent header field of the HTTP request between PSU and TPP, if available.

Request Body

NameTypeDescription
instructedAmountobjectThe amount and currency of the money to be transferred.
debtorAccountobjectThe account from which the payment will be debited.
creditorNamestringThe full name of the payment recipient.
creditorGiroobjectThe Bankgirot or Plusgirot account to which the payment will be credited.
creditorAgentstringThe BIC of the payment recipient's bank.
requestedExecutionDatestring(date)The date when the payment is scheduled to be executed in ISO 8601 format, e.g. 2025-10-31.
invoiceRefstringA custom invoice reference.
ocrRefstringA Giro OCR reference.
debtorAccountMessagestringA personal message from the payer to themselves.
creditorAccountMessagestringA personal message from the payer to the recipient.
curl -X POST "https://api.openbankingplatform.com/iso/payments" \
  -H "Accept: application/json" \
  -H "Authorization: Bearer eyJhbGciOiJSUzI1NiIsInR5cCIgOiAiSldUIn0..." \
  -H "Content-Type: application/json" \
  -H "X-Request-ID: 7891fc3d-85a3-4b8d-bf70-cd3805631607" \
  -H "X-BicFi: ESSESESS" \
  -H "PSU-ID: 123456789001" \
  -H "PSU-Corporate-ID: 1234567890" \
  -H "PSU-IP-Address: 152.120.171.187" \
  -d '{
    "instructedAmount": {
      "currency": "SEK",
      "amount": "1230.50"
    },
    "debtorAccount": {
      "iban": "SE123456789000532811"
    },
    "creditorName": "Merchant 123",
    "creditorGiro": {
      "giroNumber": "123-4567",
      "giroType": "BANKGIRO"
    },
    "creditorAgent": "HANDSESS", 
    "requestedExecutionDate": "2025-06-10",
    "invoiceRef": "Invoice Nr 4421",
    "ocrRef": "Personal note",
    "debtorAccountMessage": "Personal note"; 
    "creditorAccountMessage": "Invoice payment"
    }'
bash
international-tp

Endpoint

POST /iso/payments/international-tp
http

Request Headers

NameTypeDescription
X-Request-IDstring(uuid)The ID of the request, unique to the call, as determined by the initiating party.
X-BicFistringThe BIC of the bank to which the request is addressed.
PSU-IDstringThe ID used to identify the PSU at the bank. Typically a local social security number or another unique login ID.
PSU-Corporate-IDstringThe Corporate ID of the PSU when acting on behalf of an organization, e.g. Org. nummer for SE, KVK for NL.
FX-Quote-IdstringThe ID of the FX Quote to be used for the payment. Used for international TP payments only.
PSU-IP-Addressstring(ipv4)The IP address of the PSU to be forwarded to the bank. Only included if the request was actively initiated by the PSU.
PSU-User-AgentstringThe forwarded Agent header field of the HTTP request between PSU and TPP, if available.

Request Body

NameTypeDescription
instructedAmountobjectThe amount and currency of the money to be transferred.
debtorAccountobjectThe account from which the payment will be debited.
creditorNamestringThe full name of the payment recipient.
creditorAccountobjectThe account to which the payment will be credited.
creditorAddressobjectThe address of the payment recipient.
creditorAgentstringThe BIC of the payment recipient's bank.
creditorAgentNamestringThe name of the payment recipient's bank.
requestedExecutionDatestring(date)The date when the payment is scheduled to be executed in ISO 8601 format, e.g. 2025-10-31.
remittanceInformationUnstructuredstringA free-text field for remittance information on the payment.
debtorAccountMessagestringA personal message from the payer to themselves.
curl -X POST "https://api.openbankingplatform.com/iso/payments/international-tp" \
  -H "Accept: application/json" \
  -H "Authorization: Bearer eyJhbGciOiJSUzI1NiIsInR5cCIgOiAiSldUIn0..." \
  -H "Content-Type: application/json" \
  -H "X-Request-ID: 69de0a9d-a5e0-47cd-bdf8-f33dc4028e0c" \
  -H "X-BicFi: ESSESESS" \
  -H "PSU-ID: 123456789001" \
  -H "PSU-Corporate-ID: 1234567890" \
  -H "FX-Quote-Id: F100000PFM" \
  -H "PSU-IP-Address: 152.120.171.187" \
  -d '{
    "instructedAmount": {
      "currency": "SEK",
      "amount": "1230.50"
    },
    "debtorAccount": {
      "iban": "SE123456789000532811"
    }, 
    "creditorName": "Merchant 123",
    "creditorAccount": {
      "iban": "NL123456789000222333"
    },
    "creditorAddress": {
        "country": "NL"
    },
    "creditorAgent": "RABONL2U", 
    "creditorAgentName": "Coöperatieve Rabobank U.A.",
    "requestedExecutionDate": "2025-06-10",
    "remittanceInformationUnstructured": "Ref Number Merchant",
    "debtorAccountMessage": "Personal note"
    }'
bash

The payment needs to be signed within one hour of creating the FX quote. If the payment does not reach a finalised state within this timeframe, the FX contract will be voided and a new quote will need to be created.

sepa-credit-transfers

Endpoint

POST /iso/payments
http

Request Headers

NameTypeDescription
X-Request-IDstring(uuid)The ID of the request, unique to the call, as determined by the initiating party.
X-BicFistringThe BIC of the bank to which the request is addressed.
PSU-IDstringThe ID used to identify the PSU at the bank. Typically a local social security number or another unique login ID.
PSU-Corporate-IDstringThe Corporate ID of the PSU when acting on behalf of an organization, e.g. Org. nummer for SE, KVK for NL.
PSU-IP-Addressstring(ipv4)The IP address of the PSU to be forwarded to the bank. Only included if the request was actively initiated by the PSU.
PSU-User-AgentstringThe forwarded Agent header field of the HTTP request between PSU and TPP, if available.

Request Body

NameTypeDescription
instructedAmountobjectThe amount and currency of the money to be transferred.
debtorAccountobjectThe account from which the payment will be debited.
creditorNamestringThe full name of the payment recipient.
creditorAccountobjectThe account to which the payment will be credited.
creditorAgentstringThe BIC of the payment recipient's bank.
creditorAgentNamestringThe name of the payment recipient's bank.
requestedExecutionDatestring(date)The date when the payment is scheduled to be executed in ISO 8601 format, e.g. 2025-10-31.
remittanceInformationUnstructuredstringA free-text field for remittance information on the payment.
debtorAccountMessagestringA personal message from the payer to themselves.
curl -X POST "https://api.openbankingplatform.com/iso/payments" \
  -H "Accept: application/json" \
  -H "Authorization: Bearer eyJhbGciOiJSUzI1NiIsInR5cCIgOiAiSldUIn0..." \
  -H "Content-Type: application/json" \
  -H "X-Request-ID: a062542e-8669-43e0-b67d-593d03af0e0f" \
  -H "X-BicFi: ESSESESS" \
  -H "PSU-ID: 123456789001" \
  -H "PSU-Corporate-ID: 1234567890" \
  -H "PSU-IP-Address: 152.120.171.187" \
  -d '{
    "instructedAmount": {
      "currency": "EUR",
      "amount": "130.50"
    },
    "debtorAccount": {
      "iban": "SE123456789000532811"
    },
    "creditorName": "Merchant 123",
    "creditorAccount": {
      "iban": "NL123456789000222333"
    },
    "creditorAgent": "RABONL2U", 
    "creditorAgentName": "Coöperatieve Rabobank U.A.", 
    "requestedExecutionDate": "2025-05-19",
    "remittanceInformationUnstructured": "Ref Number Merchant",
    "debtorAccountMessage": "Personal note"
    }'
bash

Response

{
    "transactionStatus": "RCVD",
    "paymentId": "a3cf0daa-6d43-4156-afd4-1d859ad448a8",
    "_links": {
        "confirmPayment": {
            "href": "/iso/payments/confirm"
        },
        "self": {
            "href": "/iso/payments/a3cf0daa-6d43-4156-afd4-1d859ad448a8"
        }
    }
}
json

2. Confirm Payment

After creating the desired ISO payment(s), confirm it to generate and upload a pain.001 file to the online bank. Multiple existing payments can be included in the file by specifying them in the paymentIds body parameter.

Endpoint

PUT /iso/payments/confirm
http

Request Headers

NameTypeDescription
X-Request-IDstring(uuid)The ID of the request, unique to the call, as determined by the initiating party.
X-BicFistringThe BIC of the bank to which the request is addressed.
PSU-IDstringThe ID used to identify the PSU at the bank. Typically a local social security number or another unique login ID.
PSU-Corporate-IDstringThe Corporate ID of the PSU when acting on behalf of an organization, e.g. Org. nummer for SE, KVK for NL.
PSU-IP-Addressstring(ipv4)The IP address of the PSU to be forwarded to the bank. Only included if the request was actively initiated by the PSU.
PSU-User-AgentstringThe forwarded Agent header field of the HTTP request between PSU and TPP, if available.

Request Body

NameTypeDescription
paymentIdsarrayThe IDs of the payments to include in the confirmation.
batchBookingPreferredbooleanIndicates a preference to execute the payment as a batch booking when set to true.
curl -X PUT "https://api.openbankingplatform.com/iso/payments/confirm" \
  -H "Accept: application/json" \
  -H "Authorization: Bearer eyJhbGciOiJSUzI1NiIsInR5cCIgOiAiSldUIn0..." \
  -H "Content-Type: application/json" \
  -H "X-Request-ID: e26e0f4b-7fbd-4a23-8939-aa7e5275825c" \
  -H "X-BicFi: ESSESESS" \
  -H "PSU-ID: 123456789001" \
  -H "PSU-Corporate-ID: 1234567890" \
  -H "PSU-IP-Address: 152.120.171.187" \
  -d '{
    "paymentIds": [
        "a3cf0daa-6d43-4156-afd4-1d859ad448a8",
        "186901d2-2022-412f-a321-60062ef1ba1c",
        "84b1133c-9ef8-41dd-8dc1-0b64a8d955d3"
    ],
    "batchBookingPreferred": "false"
    }'
bash

Response

{
    "tppMessages": [
        {
            "category": "INFORMATION",
            "code": "FILE_UPLOADED",
            "text": "OPE20250609T1057016350301Z"
        }
    ]
}
json

3. Authorise Payment

After successfully confirming the payments, the PSU then needs to log into their online bank and authorize the file.

4. Get Payment

Lastly, check the status of each payment included in the file.

Endpoint

GET /iso/payments/{paymentId}
http

Path Parameters

NameTypeDescription
paymentIdstringThe ID of the payment that was created.

Request Headers

NameTypeDescription
X-Request-IDstring(uuid)The ID of the request, unique to the call, as determined by the initiating party.
X-BicFistringThe BIC of the bank to which the request is addressed.
PSU-IDstringThe ID used to identify the PSU at the bank. Typically a local social security number or another unique login ID.
PSU-Corporate-IDstringThe Corporate ID of the PSU when acting on behalf of an organization, e.g. Org. nummer for SE, KVK for NL.
PSU-IP-Addressstring(ipv4)The IP address of the PSU to be forwarded to the bank. Only included if the request was actively initiated by the PSU.
PSU-User-AgentstringThe forwarded Agent header field of the HTTP request between PSU and TPP, if available.
curl -X GET "https://api.openbankingplatform.com/iso/payments/a3cf0daa-6d43-4156-afd4-1d859ad448a8" \
  -H "Accept: application/json" \
  -H "Authorization: Bearer eyJhbGciOiJSUzI1NiIsInR5cCIgOiAiSldUIn0..." \
  -H "Content-Type: application/json" \
  -H "X-Request-ID: c2ef85d1-dfc8-450d-b820-c90edc0f7de2" \
  -H "X-BicFi: ESSESESS" \
  -H "PSU-ID: 123456789001" \
  -H "PSU-Corporate-ID: 1234567890" \
  -H "PSU-IP-Address: 152.120.171.187"
bash

Response

{
    "transactionStatus": "ACSC"
}
json

Payments can have a number of different statuses. Here, you want to check if the payment was rejected, in which case transactionStatus would have the value RJCT. If not, then you are done.