Internal Payments

Create internal payment

post

Path parameters

customerIdstringRequired

Header parameters

authorizationstringOptional

Authorization header containing your API Token

x-alg-noncestringOptional

Nonce used to generate the payload signature

x-alg-signaturestringOptional

Payload signature

datestringOptional

Date of the request un UTC/GMT

Body

application/json

sourceAccountIdstring · uuidRequired

Account id of the source account from which payment is sent

Example: e0cab2dd-739f-43de-b131-3e423e935bf1

destinationAccountIdstring · uuidRequired

Account id of the destination account which receiving the payment

Example: ae66fcb2-2852-4568-990d-accc78572e4d

idempotencyKeystring · uuidRequired

Unique key to ensure idempotency of payment requests

Example: 1483d25d-3f00-4d39-90ce-2379a130becd

amountnumberRequired

Amount in minor units (e.g. for £1.29 enter 129)

Example: 129

externalReferencestring · uuidRequired

Reference identifier provided by partner.

Example: ae588135-0391-42a8-a4e4-e8e7645fa707

descriptionstring | nullableRequired

Description of the payment

Example: Sent from Algbra

verificationMetadataall ofRequired

Metadata required to verify the payment request

purposestring · enum | nullableRequired

Purpose of the payment

Example: PAY_INVOICEPossible values:

Responses

200

Returns payment id to be used in the next step

application/json

400

Input validation error

application/json

401

Unauthorized

application/json

403

Forbidden

application/json

412

Modulus / IBAN error

application/json

post

HTTPcURLJavaScriptPython

POST /v1/partner/payments/customers/{customerId}/payments/internal HTTP/1.1
Host: api-url
Content-Type: application/json
Accept: */*
Content-Length: 464

{
  "sourceAccountId": "e0cab2dd-739f-43de-b131-3e423e935bf1",
  "destinationAccountId": "ae66fcb2-2852-4568-990d-accc78572e4d",
  "idempotencyKey": "1483d25d-3f00-4d39-90ce-2379a130becd",
  "amount": 129,
  "externalReference": "ae588135-0391-42a8-a4e4-e8e7645fa707",
  "description": "Sent from Algbra",
  "verificationMetadata": {
    "verificationType": "SMS_OTP_VERIFIED",
    "verificationReference": "text",
    "exemptionType": "INTERNAL_COUNTERPARTY",
    "exemptionReason": "text"
  },
  "purpose": "PAY_INVOICE"
}

{
  "paymentId": "1489dd60-aa06-48a6-a267-e7d4a9a84200",
  "processingState": "SUCCESS",
  "createdOn": "2025-09-15T19:55:31.799Z",
  "transaction": {
    "transactionId": "68c2a19131a3b726fe47fdda",
    "uniqueToken": "1489dd60-aa06-48a6-a267-e7d4a9a84200",
    "origin": "TRANSFER",
    "state": "COMPLETED",
    "category": "TRANSFERS",
    "impactType": "CREDIT",
    "customerId": "a2b9649e-df7f-4349-adff-1c57283fef10",
    "amount": 129,
    "currencyCode": "GBP",
    "description": "Sent from Algbra",
    "exchangeRate": "1.0",
    "exchangeCurrencyCode": "GBP",
    "sourceCounterparty": {
      "type": "PERSONAL",
      "details": {
        "firstName": "John",
        "lastName": "Doe"
      },
      "accountCurrency": "GBP",
      "accountReferenceType": "UK_ACCOUNT",
      "accountReference": {
        "type": "UK_ACCOUNT",
        "accountNumber": "12345678",
        "sortCode": "010102"
      }
    },
    "destinationCounterparty": {
      "type": "PERSONAL",
      "details": {
        "firstName": "John",
        "lastName": "Doe"
      },
      "accountCurrency": "GBP",
      "accountReferenceType": "UK_ACCOUNT",
      "accountReference": {
        "type": "UK_ACCOUNT",
        "accountNumber": "12345678",
        "sortCode": "010102"
      }
    },
    "transactionDate": "2025-01-01T10:32:01.162Z",
    "transferMetadata": {
      "rails": "FASTER_PAYMENTS",
      "transactionProgress": [
        {
          "event": "COMPLETED",
          "date": "2025-01-01T10:16:49.621Z"
        }
      ]
    }
  },
  "initiationRequest": {
    "sourceAccountId": "e0cab2dd-739f-43de-b131-3e423e935bf1",
    "destinationAccountId": "ae66fcb2-2852-4568-990d-accc78572e4d",
    "idempotencyKey": "1483d25d-3f00-4d39-90ce-2379a130becd",
    "amount": 129,
    "externalReference": "ae588135-0391-42a8-a4e4-e8e7645fa707",
    "description": "Sent from Algbra",
    "verificationMetadata": {
      "verificationType": "SMS_OTP_VERIFIED",
      "verificationReference": "text",
      "exemptionType": "INTERNAL_COUNTERPARTY",
      "exemptionReason": "text"
    },
    "purpose": "PAY_INVOICE"
  }
}