> ## Documentation Index
> Fetch the complete documentation index at: https://docs.polygon.technology/llms.txt
> Use this file to discover all available pages before exploring further.

# Get a Counterparty

> Get a Counterparty by id.



## OpenAPI

````yaml /api-reference/openapi.yaml get /counterparties/{counterpartyId}
openapi: 3.0.3
info:
  title: Polygon OMS Public API
  version: v26.05.28-0001
  description: >-
    Unified API for moving money between crypto and fiat. Three ways to move
    money: Transactions (instant, wallet or card funded, including Cash-In for
    in-person cash deposits), Deposit Addresses (reusable crypto deposit
    configurations), and Virtual Accounts (dedicated bank accounts that
    auto-convert fiat to crypto). Standard transactions follow a two-step flow:
    create a Quote (pricing), then create a Transaction (execution). Cash-in
    codes generate a one-time deposit code for in-person cash deposits at retail
    locations.
  contact:
    name: Polygon OMS
    url: https://oms.polygon.technology
servers:
  - url: https://sandbox-api.polygon.technology/v0.10
    description: Sandbox
  - url: https://api.polygon.technology/v0.10
    description: Production
security:
  - BearerAuth: []
tags:
  - name: Auth
    description: Authentication via FrontEgg
  - name: Customers
    description: Customer management and KYC
  - name: Customer
  - name: Wallet
  - name: Quote
  - name: Transaction
  - name: Webhook
  - name: CashIns
  - name: CashLocation
  - name: Sandbox
  - name: VirtualAccount
  - name: Counterparty
  - name: ExternalAccount
  - name: DepositAddress
  - name: Simulation
paths:
  /counterparties/{counterpartyId}:
    get:
      tags:
        - Counterparty
      summary: Get a Counterparty
      description: Get a Counterparty by id.
      operationId: getCounterparty
      parameters:
        - in: path
          name: counterpartyId
          required: true
          schema:
            type: string
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Counterparty'
          description: The request has succeeded.
components:
  schemas:
    Counterparty:
      description: |-
        A third party a customer transacts with: an entry in the customer's
        address book. Counterparties will own External Accounts (registered
        payment destinations) in a later slice.
      properties:
        address:
          $ref: '#/components/schemas/CounterpartyAddress'
        createdAt:
          type: string
          format: date-time
        customerId:
          type: string
        dateOfBirth:
          format: date
          type: string
        email:
          type: string
        entityType:
          $ref: '#/components/schemas/CounterpartyEntityType'
        id:
          type: string
        metadata:
          type: object
          additionalProperties:
            type: string
        name:
          description: Full legal name or registered business name.
          type: string
        nationality:
          description: ISO 3166-1 alpha-2.
          type: string
        object:
          enum:
            - counterparty
          type: string
        phone:
          type: string
        rejectionReason:
          description: Set when status = `rejected`.
          type: string
        status:
          $ref: '#/components/schemas/CounterpartyStatus'
        taxId:
          type: string
        updatedAt:
          type: string
          format: date-time
      type: object
    CounterpartyAddress:
      properties:
        city:
          type: string
        country:
          description: ISO 3166-1 alpha-2.
          type: string
        countryArea:
          description: State / province / region. Required when country = "US".
          type: string
        postalCode:
          type: string
        streetAddress:
          type: string
      required:
        - streetAddress
        - city
        - postalCode
        - country
      type: object
    CounterpartyEntityType:
      enum:
        - individual
        - business
      type: string
    CounterpartyStatus:
      description: |-
        Lifecycle of a counterparty. `rejected` is reserved for create-time
        compliance screening (not yet active); `deleted` marks a soft-deleted
        record that remains readable by id.
      enum:
        - active
        - rejected
        - deleted
      type: string
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: Token from POST /auth/token

````