Accela Payments API

openapi: 3.2.0
info:
  description: The Payments API enables apps to submit payment transactions on Civic Platform records.
  title: Payments API
  version: v4
servers:
- url: https://apis.accela.com/
tags:
- name: Payments
  description: Payments represent the acceptance of monetary funds submitted to the agency in relation to a transactional record. The system uses payments to invoice for services rendered and to create credit card transactions for payment.
paths:
  /v4/payments/initialize:
    post:
      description: 'Initializes citizen payment information for processing by a third party payment system that will send and commit final payment information into Automation. Call Initialize Payment to get the transaction ID required to call Commit Payment. Note: This API does not consider fees that have been marked as Pay Later in ACA.


        **API Endpoint**: POST /v4/payments/initialize


        **Scope**: payments


        **App Type**: Citizen


        **Authorization Type**: Access token


        **Civic Platform version**: 7.3.3.5'
      summary: Initialize Payment
      operationId: v4.post.payments.initialize
      tags:
      - Payments
      parameters:
      - $ref: '#/components/parameters/authHeaderParam'
      - $ref: '#/components/parameters/fields'
      - $ref: '#/components/parameters/lang'
      responses:
        '200':
          description: 'Successful request. Note: A successful request may return no data matching the filter criteria. A successful request may also return messages related to Event Manager Scripting Engine back-end processing.'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/response_paymentTransactionModel'
        '400':
          description: Invalid request.
        '401':
          description: Authorization failed.
        '403':
          description: Forbidden request.
        '404':
          description: Requested resource not found.
        '500':
          description: Internal server error or bad connection.
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/paymentInitializeModel'
        description: Payment initialization request information.
        required: true
  /v4/payments/{id}:
    put:
      description: 'Processes and commits citizen payment information for the specified payment transaction ID. The Commit Payment API allows a third-party payment vendor to send payment information to Automation. The Commit Payment API processes the payment information, logs merchant account audit information, triggers the EMSE events ConvertToRealCAPBefore and PaymentReceiveBefore, creates a transaction record, triggers the EMSE event ConvertToRealCAPAfter, finishes the Automation payment, triggers the EMSE event PaymentReceiveAfter, and appoves the transaction.


        Note: An agency Construct administrator controls which apps can call Commit Payment. By default, Commit Payment is disabled. To allow an app to call Commit Payment, an agency administrator must go to the Construct Admin Portal > Agencies > {Agency} > Apps, and enable the Payment Enabled property for the app.


        **API Endpoint**: PUT /v4/payments/{id}


        **Scope**: payments


        **App Type**: Citizen


        **Authorization Type**: Access token


        **Civic Platform version**: 7.3.3.4'
      summary: Commit Payment
      operationId: v4.put.payments.id
      tags:
      - Payments
      parameters:
      - $ref: '#/components/parameters/authHeaderParam'
      - description: The Transaction ID of an initialized transaction to be committed. Also known as "Batch Transaction Number".
        in: path
        name: id
        required: true
        schema:
          type: string
      - $ref: '#/components/parameters/fields'
      - $ref: '#/components/parameters/lang'
      responses:
        '200':
          description: 'Successful request. Note: A successful request may return no data matching the filter criteria. A successful request may also return messages related to Event Manager Scripting Engine back-end processing.'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/response_paymentCommitResultModel'
        '400':
          description: Invalid request.
        '401':
          description: Authorization failed.
        '403':
          description: Forbidden request.
        '404':
          description: Requested resource not found.
        '500':
          description: Internal server error or bad connection.
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/paymentCommitModel'
        description: The payment information to commit.
  /v4/payments/{paymentId}/void:
    put:
      description: 'Voids a given payment. When you void a payment, Civic Platform decreases the total payment amount and then increases the balance owed, as if you never made the payment.


        **API Endpoint**: PUT /v4/payments/{paymentId}/void


        **Scope**: payments


        **App Type**: Agency


        **Authorization Type**: Access token


        **Civic Platform version**: 9.0.0'
      summary: Void Payment
      operationId: v4.put.payments.paymentId.void
      tags:
      - Payments
      parameters:
      - $ref: '#/components/parameters/authHeaderParam'
      - description: The id of the payment to void. See [Get All Payments for Record](./api-records.html#operation/v4.get.records.recordId.payments)
        in: path
        name: paymentId
        required: true
        schema:
          type: string
      - $ref: '#/components/parameters/lang'
      responses:
        '200':
          description: 'Successful request. Note: A successful request may return no data matching the filter criteria. A successful request may also return messages related to Event Manager Scripting Engine back-end processing.'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/response_resultModel'
        '400':
          description: Invalid request.
        '401':
          description: Authorization failed.
        '403':
          description: Forbidden request.
        '404':
          description: Requested resource not found.
        '500':
          description: Internal server error or bad connection.
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/paymentVoidModel'
        description: Payment information to void.
        required: true
  /v4/payments/transactions/{id}/fees:
    get:
      description: 'Returns fees information for a given transaction id.


        **API Endpoint**: GET /v4/payments/transactions/{id}/fees


        **Scope**: payments


        **App Type**: Agency App


        **Authorization Type**: Access token


        **Civic Platform version**: 19.2.0'
      summary: Get Transaction Fees
      operationId: v4.get.transaction.fees
      tags:
      - Payments
      parameters:
      - $ref: '#/components/parameters/authHeaderParam'
      - description: The id of the transaction to get.
        in: path
        name: id
        required: true
        schema:
          type: string
      responses:
        '200':
          description: 'Successful request. Note: A successful request may return no data matching the filter criteria. A successful request may also return messages related to Event Manager Scripting Engine back-end processing.'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/response_transaction_fees'
        '400':
          description: Invalid request.
          content:
            application/json:
              schema:
                type: string
        '401':
          description: Authorization failed.
        '403':
          description: Forbidden request.
        '404':
          description: Requested resource not found.
        '500':
          description: Internal server error or bad connection.
components:
  schemas:
    paymentCommitModel:
      type: object
      required:
      - amount
      - convenienceFee
      - paymentMethod
      - paymentSystemTransactionId
      properties:
        amount:
          description: The payment amount.
          format: double
          type: number
        comments:
          description: Comments related to the payment transaction.
          type: string
        convenienceFee:
          description: The payment convenience fee to be applied. Set to 0 if none.
          format: double
          type: number
        creditCard:
          $ref: '#/components/schemas/creditCardLastFourDigitsModel'
        merchantAccountId:
          description: The account ID of the merchant receiving the payment.
          type: string
        payeePhone:
          description: The area code and phone number of the payee.
          type: string
        paymentMethod:
          description: The method of payment, either Credit Card or Check.
          type: string
          enum:
          - Credit Card
          - Check
        paymentSystemTransactionId:
          description: The third party payment system's payment transaction ID.
          type: string
    paymentCompleteModel:
      type: object
      properties:
        paymentId:
          description: The payment id.
          type: string
        paymentStatus:
          description: The payment status (currently, this field always returns "PAID").
          type: string
        receiptId:
          description: The payment receipt id.
          type: string
        recordId:
          description: "The record id the payment is applied to.\t"
          type: string
        serviceProviderCode:
          description: The unique agency identifier.
          type: string
    response_paymentCommitResultModel:
      type: object
      properties:
        result:
          $ref: '#/components/schemas/paymentCommitResultModel'
        status:
          type: integer
          description: The HTTP return status.
    creditCardLastFourDigitsModel:
      type: object
      properties:
        billingAddress:
          $ref: '#/components/schemas/billingAddressV4_V4_put_payments_id'
        businessName:
          description: A secondary business name for the applicable individual.
          type: string
        cardNumberLastDigits:
          description: The last 4 digits of the credit card number.
          type: string
        cardType:
          description: The credit card type. For example, Visa, American Express, or Discover.
          type: string
        holderName:
          description: The check holder's name.
          type: string
    transactionFeesModel:
      type: object
      properties:
        version:
          type: object
          description: The payment schedule version
          properties:
            text:
              description: The localized display value.
              type: string
            value:
              description: The data value.
              type: string
        paymentPeriod:
          type: object
          description: The time interval for processing invoices.
          properties:
            text:
              description: The localized display value.
              type: string
            value:
              description: The data value.
              type: string
        subGroup:
          type: object
          description: The subgroup the fee is associated with.
          properties:
            text:
              description: The localized display value.
              type: string
            value:
              description: The data value.
              type: string
        balanceDue:
          description: The amount due.
          format: double
          type: number
        schedule:
          type: object
          description: The payment schedule name.
          properties:
            text:
              description: The localized display value.
              type: string
            value:
              description: The data value.
              type: string
        code:
          type: object
          description: A code identifying an associated item
          properties:
            text:
              description: The localized display value.
              type: string
            value:
              description: The data value.
              type: string
        description:
          type: object
          description: The fee description.
          properties:
            text:
              description: The localized display value.
              type: string
            value:
              description: The data value.
              type: string
        unit:
          type: object
          description: The unit of measure used for the object.
          properties:
            text:
              description: The localized display value.
              type: string
            value:
              description: The data value.
              type: string
        userDefinedField1:
          description: User defined field 1
          type: string
        userDefinedField2:
          description: User defined field 2
          type: string
        userDefinedField3:
          description: User defined field 3
          type: string
        userDefinedField4:
          description: User defined field 4
          type: string
        status:
          description: The transaction status
          type: string
        notes:
          description: The transaction notes
          type: string
        amount:
          description: The payment amount.
          format: double
          type: number
        assessDate:
          description: The access date
          type: string
        quantity:
          description: The number of units for which the same fee applies.
          format: double
          type: number
        id:
          description: The transaction id
          format: int64
          type: integer
        account1:
          description: The first account
          type: string
        account2:
          description: The second account
          type: string
        account3:
          description: The third account
          type: string
        recordId:
          $ref: '#/components/schemas/recordIdModel'
        allocation:
          description: Allocation proportion or amount of account.
          format: double
          type: number
        invoiceNumber:
          description: The invoice number string.
          type: string
    paymentTransactionModel:
      type: object
      properties:
        transactionId:
          description: The payment transaction ID to be processed and commited by the Commit Payment API.
          format: int64
          type: integer
    paymentInitializeModel:
      type: object
      properties:
        entityIds:
          description: An array containing the entity ID's to initialize the payment for.
          items:
            type: string
          type: array
        entityType:
          description: The type of entity to initialize the payment for.
          type: string
          enum:
          - record
        merchantAccountId:
          description: The account ID of the merchant receiving the payment.
          type: string
        paymentMethod:
          description: The method of payment, either Credit Card or Check.
          type: string
          enum:
          - Check
          - Credit Card
    billingAddressV4_V4_put_payments_id:
      type: object
      properties:
        addressLine1:
          type: string
        addressLine2:
          type: string
        addressLine3:
          type: string
        city:
          type: string
        countryCode:
          type: string
        postalCode:
          type: string
        state:
          type: string
    paymentCommitResultModel:
      type: object
      properties:
        completePayments:
          $ref: '#/components/schemas/paymentCompleteModel'
        message:
          description: Response message for the payment transaction.
          type: string
    response_transaction_fees:
      type: object
      properties:
        result:
          items:
            $ref: '#/components/schemas/transactionFeesModel'
          type: array
        status:
          type: integer
          description: The HTTP return status.
    recordIdModel:
      type: object
      properties:
        customId:
          description: An ID based on a different numbering convention from the numbering convention used by the record ID (xxxxx-xx-xxxxx). Accela Automation auto-generates and applies an alternate ID value when you submit a new application.
          type: string
        id:
          description: The record system id assigned by the Civic Platform server.
          type: string
        serviceProviderCode:
          description: The unique agency identifier.
          type: string
        trackingId:
          description: The application tracking number (IVR tracking number).
          format: int64
          type: integer
        value:
          description: The alphanumeric record id.
          type: string
    paymentVoidModel:
      type: object
      properties:
        comments:
          description: Comments or notes about the void payment transaction.
          type: string
        reason:
          type: object
          description: The void payment reason.
          properties:
            text:
              description: The localized display value.
              type: string
            value:
              description: The data value.
              type: string
    resultModel:
      type: object
      properties:
        code:
          description: The error code, if an error is encountered.
          type: string
        id:
          description: The object's system id.
          type: string
        isSuccess:
          description: Indicates whether or not the operation on the object is successful.
          type: boolean
        message:
          description: The error message, if an error is encountered.
          type: string
    response_resultModel:
      type: object
      properties:
        result:
          $ref: '#/components/schemas/resultModel'
        status:
          type: integer
          description: The HTTP return status.
    response_paymentTransactionModel:
      type: object
      properties:
        result:
          items:
            $ref: '#/components/schemas/paymentTransactionModel'
          type: array
        status:
          type: integer
          description: The HTTP return status.
  parameters:
    lang:
      description: Language parameter to support I18N. Default language is en_US.
      in: query
      name: lang
      required: false
      schema:
        type: string
    fields:
      description: Comma-delimited names of fields to be returned in the response. Note - Field names are case-sensitive and only first-level fields are supported. Invalid field names are ignored.
      in: query
      name: fields
      required: false
      schema:
        type: string
    authHeaderParam:
      description: Construct oAuth2 authentication token
      in: header
      name: Authorization
      required: true
      schema:
        type: string
x-api-evangelist-provenance:
  generated: '2026-09-06'
  method: searched
  source: https://developer.accela.com/api/v4/v4-payments.json
  note: Harvested verbatim from the Accela Developer Portal API Reference, which renders these Swagger 2.0 documents via ReDoc (spec-url on developer.accela.com/docs/api_reference/api-*.html). The byte-identical original is kept at openapi/_original/. This copy is the same document serialized to YAML.
  repairs:
  - escaped stray backslashes
  - The published JSON did not parse as strict JSON; only syntax was repaired, no content was added or changed.