KeyCorp Account Information API

openapi: 3.2.0
info:
  title: Commercial Accounts Reporting Account Information API
  description: A set of commercial accounting APIs used to get account-level information for client authorized accounts.
  contact:
    name: KeyBank Developer Support
    email: embedded_banking_support@keybank.com
  version: 1.0.3
servers:
- url: https://partner-api-qv.key.com
- url: https://partner-api.key.com
tags:
- name: Account Information
paths:
  /commercial/accounts/v1/{accountId}:
    get:
      operationId: getAccount
      tags:
      - Account Information
      summary: Retrieve account details
      description: Get full details about the account identified with accountId parameter.
      parameters:
      - $ref: '#/components/parameters/Accept'
      - $ref: '#/components/parameters/AcceptCharset'
      - $ref: '#/components/parameters/UserAgent'
      - $ref: '#/components/parameters/FapiInteractionIdHeader'
      - $ref: '#/components/parameters/AccountIdPath'
      - $ref: '#/components/parameters/BalanceAsOfDate'
      responses:
        '200':
          description: Commercial Account
          headers:
            x-fapi-interaction-id:
              $ref: '#/components/headers/x-fapi-interaction-id'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AccountWithDetails'
              example:
                accountId: 17e13f78-20c7-4ce6-ad4e-5afff48c8834
                accountNumberDisplay: X5678
                accountNumber: 012345678
                accountCategory: COMMERCIAL_ACCOUNT
                currentAvailableBalance: 1000.1
                currentLedgerBalance: 3000.2
                openingLedgerBalance: 123.45
                closingLedgerBalance: 25000.99
                openingAvailableBalance: 15000.5
                closingAvailableBalance: 25000.36
                balanceAsOf: 2025-08-21
                commercialBalances:
                - commercialCode:
                    type: BAI
                    code: '010'
                    memo: Opening Ledger Balance
                  amount: 123.45
                - commercialCode:
                    type: BAI
                    code: '015'
                    memo: Closing Ledger Balance
                  amount: 25000.99
                - commercialCode:
                    type: BAI
                    code: '040'
                    memo: Opening Available Balance
                  amount: 15000.5
                - commercialCode:
                    type: BAI
                    code: '045'
                    memo: Closing Available Balance
                  amount: 25000.36
        '206':
          description: Partial Success of Commercial Account
          headers:
            x-fapi-interaction-id:
              $ref: '#/components/headers/x-fapi-interaction-id'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AccountWithDetails'
        '400':
          description: Input sent by client does not satisfy API specification
          headers:
            x-fapi-interaction-id:
              $ref: '#/components/headers/x-fapi-interaction-id'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
              examples:
                Invalid Input:
                  value:
                    code: '401'
                    message: Invalid Input
                    debugMessage: Required header 'x-fapi-interaction-id' is not valid.
        '401':
          description: Request lacks valid authentication credentials for the target resource
          headers:
            x-fapi-interaction-id:
              $ref: '#/components/headers/x-fapi-interaction-id'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
              examples:
                Unauthorized:
                  value:
                    code: '603'
                    message: Authentication failed
                    debugMessage: Please update the request and try again.
        '403':
          description: Forbidden, server understands the request but refuses to authorize it
          headers:
            x-fapi-interaction-id:
              $ref: '#/components/headers/x-fapi-interaction-id'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
              examples:
                Forbidden:
                  value:
                    code: '403'
                    message: Forbidden
                    debugMessage: Please update the request and try again.
        '406':
          description: Content Type not Supported
          headers:
            x-fapi-interaction-id:
              $ref: '#/components/headers/x-fapi-interaction-id'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
              examples:
                Content Type not Supported:
                  value:
                    code: '1203'
                    message: Content Type not Supported
                    debugMessage: 'Acceptable representations: [application/json, application/*+json].'
  /commercial/accounts/v1/list:
    get:
      operationId: searchForAccounts
      tags:
      - Account Information
      summary: Search for accounts
      description: Return information for all client authorized accounts
      parameters:
      - $ref: '#/components/parameters/Accept'
      - $ref: '#/components/parameters/AcceptCharset'
      - $ref: '#/components/parameters/UserAgent'
      - $ref: '#/components/parameters/LimitQuery'
      - $ref: '#/components/parameters/PageKeyQuery'
      - $ref: '#/components/parameters/FapiInteractionIdHeader'
      responses:
        '200':
          description: Array of accounts (Account)
          headers:
            x-fapi-interaction-id:
              $ref: '#/components/headers/x-fapi-interaction-id'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Accounts'
        '400':
          description: Input sent by client does not satisfy API specification
          headers:
            x-fapi-interaction-id:
              $ref: '#/components/headers/x-fapi-interaction-id'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
              examples:
                Invalid Input:
                  value:
                    code: '401'
                    message: Invalid Input
                    debugMessage: Required header 'x-fapi-interaction-id' is not valid.
        '401':
          description: Request lacks valid authentication credentials for the target resource
          headers:
            x-fapi-interaction-id:
              $ref: '#/components/headers/x-fapi-interaction-id'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
              examples:
                Unauthorized:
                  value:
                    code: '603'
                    message: Authentication failed
                    debugMessage: Please update the request and try again.
        '403':
          description: Forbidden, server understands the request but refuses to authorize it
          headers:
            x-fapi-interaction-id:
              $ref: '#/components/headers/x-fapi-interaction-id'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
              examples:
                Forbidden:
                  value:
                    code: '403'
                    message: Forbidden
                    debugMessage: Please update the request and try again.
        '404':
          description: Data not found for request parameters
          headers:
            x-fapi-interaction-id:
              $ref: '#/components/headers/x-fapi-interaction-id'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
              examples:
                Data not found for request parameters:
                  value:
                    code: '1107'
                    message: Data not found for request parameters
                    debugMessage: Please adjust your search criteria and try again.
        '406':
          description: Content Type not Supported
          headers:
            x-fapi-interaction-id:
              $ref: '#/components/headers/x-fapi-interaction-id'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
              examples:
                Content Type not Supported:
                  value:
                    code: '1203'
                    message: Content Type not Supported
                    debugMessage: 'Acceptable representations: [application/json, application/*+json].'
components:
  schemas:
    PageMetadata:
      title: Page Metadata
      description: Page information based on the pagination controls and result set.
      type: object
      properties:
        nextPageKey:
          type: string
          example: '2'
          description: Displays the next page number. This is an opaque identifier and does not need to be numeric or have any specific pattern.
        previousPageKey:
          type: string
          example: '1'
          description: Display the previous page number. This is an opaque identifier and does not need to be numeric or have any specific pattern.
        totalElements:
          type: integer
          example: 3
          description: Total number of elements
    Identifier:
      title: Identifier
      description: Value for a unique identifier
      type: string
      maxLength: 256
    Timestamp:
      title: Timestamp
      description: 'Date and time format based on ISO 8601 standard. Format: ''YYYY-MM-DDThh:mm:ss.nnn'
      type: string
      format: date-time
    HateoasLink:
      title: HATEOAS Link
      description: HATEOAS is 'Hypermedia As The Engine Of Application State,' a REST application constraint for URL addresses.
      required:
      - href
      type: object
      properties:
        href:
          type: string
          format: uri-reference
          description: URL address to invoke the action on the resource.
          example: https://partner-api.key.com/accounts/12345
    CommercialAccount:
      title: Commercial Account entity
      description: Information related to the commercial account
      type: object
      allOf:
      - $ref: '#/components/schemas/Account'
      - type: object
        properties:
          balanceAsOf:
            description: As-of date of balances
            $ref: '#/components/schemas/Timestamp'
          openingLedgerBalance:
            type: number
            description: The ledger balance at the start of the business day (balance as-of date) for which the activity is being reported.
          closingLedgerBalance:
            type: number
            description: 'The ledger balance at the end of the business day (balance as-of date) for which the activity is being reported. Calculated as: Opening Ledger + Total Credits - Total Debits = Closing Ledger Balance'
          currentLedgerBalance:
            type: number
            description: 'The ledger balance at the time during the day the information is being reported. It includes debits and credits that have been processed up to that time. Calculated as: Opening Ledger Balance + the Current Net of Debits and Credits = Current Ledger Balance.'
          openingAvailableBalance:
            type: number
            description: 'The available balance at the start of the business day following the day for which activity is reported. Calculated as: Closing Available   Balance Reported + The Net of One-day Float = Opening Available Balance.'
          currentAvailableBalance:
            type: number
            description: 'The available balance at a given time during the business day the information is being reported. It includes zero-float debits and credits processed up to that time. Calculated as: Opening Available Balance + the Current Net of Zero Day Float Debits and Credits = Current Available Balance.'
          closingAvailableBalance:
            type: number
            description: 'The available balance at the end of the business day for which activity is being reported. Calculated as: Closing Ledger Balance - Float = Closing Available Balance.'
          commercialBalances:
            type: array
            description: A list of specific treasury management defined balances
            items:
              $ref: '#/components/schemas/CommercialBalance'
    Accounts:
      title: Accounts entity
      description: Paginated array of accounts
      type: object
      allOf:
      - $ref: '#/components/schemas/PaginatedArray'
      - type: object
        properties:
          accounts:
            type: array
            description: A list of commercial accounts
            items:
              $ref: '#/components/schemas/Account'
    Error:
      title: Error
      description: Contains details if there is an issue with the API or the account.
      type: object
      properties:
        code:
          type: string
          description: Code indicates the type of error that occurred.
        message:
          type: string
          description: Information associated with the code that helps you diagnose the error.
        debugMessage:
          type: string
          description: Message used to debug the root cause of the error and determine what needs correction in the request. Content can change depending on the request data provided.
    AccountDescriptor:
      title: Account Descriptor entity
      description: Basic account information including the account category, GUID, and account number.
      type: object
      required:
      - accountCategory
      discriminator:
        propertyName: accountCategory
      properties:
        accountCategory:
          $ref: '#/components/schemas/AccountCategory'
          description: The account type. KeyBank currently supports only commercial account types.
        accountId:
          description: A long-term persistent identity of the account that is not the account number. This identity must be unique to the owning institution.
          $ref: '#/components/schemas/Identifier'
        accountNumberDisplay:
          description: The account display number suitable for the interface provider.
          type: string
          example: X5678
        accountNumber:
          type: string
          description: The bank account number.
          example: 012345678
    Charsets:
      title: Character Sets
      description: The supported character set for the content. UTF-8 contains the accepted Unicode character list for standard English and Latin characters.
      type: string
      enum:
      - UTF-8
    TreasuryManagementType:
      title: Treasury Management Type
      description: 'Identifies the source of the treasury management account. Valid values: BAI, BTRS, ISO, SWIFT'
      type: string
      enum:
      - BAI
      - BTRS
      - ISO
      - SWIFT
      example: BAI
    FapiInteractionId:
      title: FAPI Interaction ID
      description: Universally unique identifier for this interaction, used across all API requests and responses. A valid ID must be 36 characters in length.
      type: string
      format: uuid
      minLength: 36
      maxLength: 36
      example: c770aef3-6784-41f7-8e0e-ff5f97bddb3a
    Account:
      title: Account entity
      description: Contains basic account information
      type: object
      allOf:
      - $ref: '#/components/schemas/AccountDescriptor'
    PageMetadataLinks:
      title: Page Metadata Links
      description: Resource URLs for retrieving next or previous datasets.
      type: object
      properties:
        next:
          $ref: '#/components/schemas/HateoasLink'
          description: Resource URL for retrieving next dataset
        prev:
          $ref: '#/components/schemas/HateoasLink'
          description: Resource URL for retrieving previous dataset
    CommercialBalance:
      title: Commercial Balance entity
      description: A specific treasury management defined balance
      type: object
      properties:
        commercialCode:
          $ref: '#/components/schemas/CommercialCode'
          description: The code for a specific treasury management defined field
        amount:
          type: number
          description: The treasury management balance amount
        memo:
          type: string
          description: Memo field for the treasury management balance amount
    DateString:
      title: Date String
      description: 'Date format based on ISO 8601 standards. Format: YYYY-MM-DD'
      type: string
      format: date
      maxLength: 10
      example: '2025-02-15'
    CommercialCode:
      title: Commercial Code entity
      description: Code for commercial transactions that retrieves the summary, account information, and related transaction codes from the treasury object. The code for a specific treasury management defined field.
      type: object
      properties:
        type:
          $ref: '#/components/schemas/TreasuryManagementType'
          description: 'The source of treasury management account definition. Valid values: BAI, BTRS, ISO, SWIFT'
        code:
          type: string
          description: The code of the Treasury Management defined field
    ContentTypes:
      title: Content Types
      description: Types of supported document formats.
      type: string
      enum:
      - application/json
    PaginatedArray:
      title: Paginated Array
      description: Page metadata and related URLs for the result set.
      type: object
      properties:
        page:
          $ref: '#/components/schemas/PageMetadata'
          description: Offset IDs for navigating result sets
        links:
          $ref: '#/components/schemas/PageMetadataLinks'
          description: Resource URLs for navigating result sets
    AccountWithDetails:
      title: Account With Details entity
      description: Detailed information about an authorized client account. If the BalanceAsOfDate is provided, balance summary information is also returned.
      type: object
      discriminator:
        propertyName: accountCategory
        mapping:
          COMMERCIAL_ACCOUNT: '#/components/schemas/CommercialAccount'
      oneOf:
      - $ref: '#/components/schemas/CommercialAccount'
    AccountCategory:
      title: Account Category type
      description: 'The account type for the transaction. Valid values: COMMERCIAL_ACCOUNT'
      type: string
      enum:
      - COMMERCIAL_ACCOUNT
  parameters:
    FapiInteractionIdHeader:
      name: x-fapi-interaction-id
      in: header
      description: Unique identifier for this interaction. A valid ID must be 36 characters in length. This is used across all API requests and responses.
      schema:
        $ref: '#/components/schemas/FapiInteractionId'
      required: true
      example: c770aef3-6784-41f7-8e0e-ff5f97bddb3a
    AcceptCharset:
      name: Accept-Charset
      in: header
      description: The supported character set for the content. UTF-8 contains the accepted Unicode character list for standard English and Latin characters.
      schema:
        $ref: '#/components/schemas/Charsets'
      required: true
      example: UTF-8
    PageKeyQuery:
      name: pageKey
      in: query
      description: A secure and flexible pagination capability to retrieve the following set of records.
      schema:
        type: string
    UserAgent:
      name: User-Agent
      in: header
      description: Identifies the web browser and/or cURL command line used in the HTTP request. We collect this data to see which products use our API data services, helpful for troubleshooting and compatibility.
      schema:
        type: string
      required: true
      example: Example/1.2.3 Crawler/4.3.1
    LimitQuery:
      name: limit
      in: query
      description: Restrict the amount of data you receive. For accounts, the limit can be between 1 and 100. If omitted, the default is 50. For transactions, the limit can be between 1 and 500. If omitted, the default is 100.
      schema:
        type: integer
        minLength: 1
        maxLength: 500
      example: 50
    AccountIdPath:
      name: accountId
      in: path
      description: Account Identifier
      required: true
      schema:
        type: string
    Accept:
      name: Accept
      in: header
      description: Preferred syntax for content type. This content type should be application/json.
      schema:
        $ref: '#/components/schemas/ContentTypes'
      required: true
      example: application/json
    BalanceAsOfDate:
      name: balanceAsOf
      in: query
      description: 'A query option to return historical balance information from a certain date. Balance information includes opening and closed ledger balances, opening and closing available balances, and commercial balances. The date must be within 180 days of the current date. If a date is not provided, historical balance information is not returned. Format: YYYY-MM-DD'
      schema:
        $ref: '#/components/schemas/DateString'
  headers:
    x-fapi-interaction-id:
      description: Unique identifier for this interaction
      schema:
        $ref: '#/components/schemas/FapiInteractionId'
      example: c770aef3-6784-41f7-8e0e-ff5f97bddb3a