Justworks Company API

openapi: 3.1.0
info:
  title: Justworks Company API
  description: |
    Read company-level data from the Justworks Partner API including
    company identity, bank account on file, verified business information,
    custom field definitions, and operating jurisdictions.
  version: '2026-05-25'
  contact:
    name: Justworks Partner Support
    url: https://public-api.justworks.com/v1/docs

servers:
  - url: https://public-api.justworks.com
    description: Production Server

security:
  - OAuth2: []

tags:
  - name: Company
    description: Read access to company-level Justworks data

paths:
  /v1/company:
    get:
      summary: Justworks Get Company
      description: Retrieve company identity, departments, offices, and country data.
      operationId: getCompany
      tags:
        - Company
      responses:
        '200':
          description: Company record
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Company'

  /v1/company/bank-account:
    get:
      summary: Justworks Get Company Bank Account
      description: Retrieve the company bank account on file (masked).
      operationId: getCompanyBankAccount
      tags:
        - Company
      responses:
        '200':
          description: Bank account on file
          content:
            application/json:
              schema:
                type: object
                properties:
                  bank_name:
                    type: string
                  account_type:
                    type: string
                  account_number_tail:
                    type: string
                  routing_number:
                    type: string

  /v1/company/business-info:
    get:
      summary: Justworks Get Company Business Info
      description: Retrieve verified business identifiers and officer information.
      operationId: getCompanyBusinessInfo
      tags:
        - Company
      responses:
        '200':
          description: Business info
          content:
            application/json:
              schema:
                type: object
                properties:
                  entity_identifiers:
                    type: array
                    items:
                      type: object
                      properties:
                        file_number:
                          type: string
                        issue_date:
                          type: string
                          format: date
                        state:
                          type: string
                  officers:
                    type: array
                    items:
                      type: object
                      properties:
                        name:
                          type: string
                        titles:
                          type: array
                          items:
                            type: string

  /v1/company/custom-fields:
    get:
      summary: Justworks List Company Custom Fields
      description: List company-defined custom field definitions.
      operationId: listCompanyCustomFields
      tags:
        - Company
      responses:
        '200':
          description: Custom field definitions
          content:
            application/json:
              schema:
                type: object
                properties:
                  items:
                    type: array
                    items:
                      $ref: '#/components/schemas/CustomFieldDefinition'

  /v1/company/jurisdictions:
    get:
      summary: Justworks List Company Jurisdictions
      description: List jurisdictions in which the company operates.
      operationId: listCompanyJurisdictions
      tags:
        - Company
      responses:
        '200':
          description: Jurisdictions
          content:
            application/json:
              schema:
                type: object
                properties:
                  items:
                    type: array
                    items:
                      type: object
                      properties:
                        zone_code:
                          type: string

components:
  securitySchemes:
    OAuth2:
      type: oauth2
      flows:
        authorizationCode:
          authorizationUrl: https://secure.justworks.com/oauth/authorize
          tokenUrl: https://public-api.justworks.com/oauth/token
          refreshUrl: https://public-api.justworks.com/oauth/token
          scopes:
            company.basic:read: Read basic company data
            company.detail:read: Read detailed company data
            company.bank_account:read: Read company bank account on file

  schemas:
    Company:
      type: object
      properties:
        id:
          type: string
        tax_id:
          type: string
        display_name:
          type: string
        legal_name:
          type: string
        addresses:
          type: array
          items:
            type: object
        departments:
          type: array
          items:
            type: object
        offices:
          type: array
          items:
            type: object
        phones:
          type: array
          items:
            type: object
        country_data:
          type: object
        created_at:
          type: string
          format: date-time
        updated_at:
          type: string
          format: date-time

    CustomFieldDefinition:
      type: object
      properties:
        id:
          type: string
        label:
          type: string
        type:
          type: string
        options:
          type: array
          items:
            type: string
        cardinality:
          type: string
        category:
          type: string