# Update Contact

Updates an existing contact and optionally adds new payment details.

Endpoint: PATCH /contacts/{contact_id}
Version: 1.0.0
Security: apiKeyAuth

## Path parameters:

  - `contact_id` (string, required)
    Contact identifier.

## Header parameters:

  - `x-entity-id` (string)
    Optional entity ID for scoped access to entity-specific data

## Request fields (application/json):

  - `nickname` (any)

  - `email` (any)

  - `address` (any)

  - `counterparty` (any)

## Response 200 fields (application/json):

  - `id` (string, required)

  - `nickname` (string, required)

  - `email` (any)

  - `address` (any)

  - `payment_methods` (object, required)

  - `payment_methods.ach` (any)

  - `payment_methods.wire` (any)

  - `payment_methods.check` (any)

  - `payment_methods.international` (any)

  - `payment_methods.crypto` (array)

  - `payment_methods.crypto.destination_address` (string, required)

  - `payment_methods.crypto.destination_payment_rail` (string, required)
    Enum: "arbitrum", "avalanche_c_chain", "base", "ethereum", "optimism", "polygon", "solana", "stellar", "tron", "ach", "ach_push", "ach_same_day", "wire"

  - `payment_methods.crypto.destination_currency` (string, required)
    Enum: "usdb", "usdc", "usdt", "dai", "pyusd", "eurc", "usd"

  - `payment_methods.static_memos` (array)

  - `payment_methods.static_memos.destination_payment_currency` (string, required)
    Enum: "usdb", "usdc", "usdt", "dai", "pyusd", "eurc", "usd"

  - `supported_payment_methods` (array, required)
    Enum: "ach", "wire", "check", "international", "crypto", "static_memo"

  - `last_payment_reason` (any)

## Response 422 fields (application/json):

  - `detail` (array)

  - `detail.loc` (array, required)

  - `detail.msg` (string, required)

  - `detail.type` (string, required)