generated: '2026-07-23'
method: derived
source: openapi/ paths + https://www.unit.co/docs/api/resources (JSON:API relationships)
description: >-
  Entity-relationship graph for Unit's JSON:API resources, derived from the OpenAPI
  path structure and the documented JSON:API relationships (customer, account, org).
  All resources carry JSON:API type + id and reference each other through the
  top-level relationships object.
entities:
  - name: Application
    id_prefix: null
    kind: [individualApplication, businessApplication, soleProprietorApplication]
    relationships:
      - {to: Customer, cardinality: has_one, via: customer, note: Approved application produces a customer.}
      - {to: ApplicationDocument, cardinality: has_many, via: documents}
      - {to: BeneficialOwner, cardinality: has_many, via: beneficialOwners}
  - name: Customer
    kind: [individualCustomer, businessCustomer]
    relationships:
      - {to: Application, cardinality: belongs_to, via: application}
      - {to: Org, cardinality: belongs_to, via: org}
      - {to: Account, cardinality: has_many, via: account}
      - {to: AuthorizedUser, cardinality: has_many, via: authorizedUsers}
  - name: Account
    kind: [depositAccount, creditAccount, walletAccount]
    relationships:
      - {to: Customer, cardinality: belongs_to, via: customer}
      - {to: Card, cardinality: has_many, via: account}
      - {to: Transaction, cardinality: has_many, via: account}
  - name: Card
    kind: [individualDebitCard, businessDebitCard, individualVirtualDebitCard, businessCreditCard]
    relationships:
      - {to: Account, cardinality: belongs_to, via: account}
      - {to: Customer, cardinality: belongs_to, via: customer}
  - name: Payment
    kind: [bookPayment, achPayment, wirePayment, billPayment]
    relationships:
      - {to: Account, cardinality: belongs_to, via: account}
      - {to: Counterparty, cardinality: has_one, via: counterparty}
      - {to: Transaction, cardinality: has_one, via: transaction}
  - name: Counterparty
    relationships:
      - {to: Customer, cardinality: belongs_to, via: customer}
  - name: Transaction
    relationships:
      - {to: Account, cardinality: belongs_to, via: account}
      - {to: Customer, cardinality: belongs_to, via: customer}
      - {to: Payment, cardinality: has_one, via: payment}
  - name: Authorization
    relationships:
      - {to: Card, cardinality: belongs_to, via: card}
      - {to: Account, cardinality: belongs_to, via: account}
  - name: CheckDeposit
    relationships:
      - {to: Account, cardinality: belongs_to, via: account}
      - {to: Customer, cardinality: belongs_to, via: customer}
  - name: Dispute
    relationships:
      - {to: Transaction, cardinality: belongs_to, via: transaction}
  - name: Statement
    relationships:
      - {to: Account, cardinality: belongs_to, via: account}
  - name: Event
    relationships:
      - {to: Webhook, cardinality: has_many, via: webhook, note: Events are delivered to webhook endpoints.}