# Get an address book entry

Returns one registered external bank account or wallet address, including its payment details and current status.

Use its `destinationId` when creating a withdrawal after the entry is `ACTIVE`.

Product: Account API
API reference version: 0.3.0 (current)
OpenAPI contract: https://docs.axiym.io/openapi/account-api/0.3.0.yaml
Canonical page: https://docs.axiym.io/account-api/api-reference/0.3.0/address-book/getAddressBookEntry

[Compact reference](/account-api/api-reference/0.3.0/address-book/getAddressBookEntry.md)

## GET /address-book/{destinationId}

## Servers

```json
[
  {
    "url": "https://partner-api.sandbox.axiym.io/api/v1",
    "description": "Sandbox"
  },
  {
    "url": "https://partner-api.axiym.io/api/v1",
    "description": "Production"
  }
]
```

## Authentication

```json
{
  "security": [
    {
      "Default": []
    }
  ],
  "securitySchemes": {
    "Default": {
      "type": "http",
      "scheme": "bearer",
      "bearerFormat": "JWT"
    }
  }
}
```

## Parameters

### path: destinationId

```json
{
  "name": "destinationId",
  "in": "path",
  "required": true,
  "schema": {
    "type": "string",
    "format": "uuid",
    "examples": [
      "e2c8a4f6-7b1d-4e3a-9c5f-8a0b2d4e6f1c"
    ]
  },
  "description": "Address book entry identifier (UUID)."
}
```

### header: X-Request-Id

```json
{
  "name": "X-Request-Id",
  "in": "header",
  "required": false,
  "description": "Optional client-generated request identifier (UUID recommended) for end-to-end tracing.\n\nAxiym echoes it in the `X-Request-Id` response header and records it in logs. Quote it when contacting support. If omitted, Axiym generates one.",
  "schema": {
    "type": "string",
    "format": "uuid",
    "examples": [
      "3fa85f64-5717-4562-b3fc-2c963f66afa6"
    ]
  }
}
```

## Responses

### 200

```json
{
  "description": "Address book entry.",
  "content": {
    "application/json": {
      "schema": {
        "$ref": "#/components/schemas/AddressBookEntry"
      },
      "examples": {
        "Bank account": {
          "summary": "Bank account",
          "value": {
            "destinationId": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
            "status": "ACTIVE",
            "currency": "USD",
            "accountNumber": "0123456789",
            "bank": {
              "bankName": "Bank of America",
              "address": {
                "city": "New York",
                "country": "US"
              },
              "swiftBic": "BOFAUS3NXXX"
            },
            "createdAt": "2026-06-12T14:05:00Z"
          }
        },
        "Wallet address": {
          "summary": "Wallet address",
          "value": {
            "destinationId": "e2c8a4f6-7b1d-4e3a-9c5f-8a0b2d4e6f1c",
            "status": "ACTIVE",
            "currency": "USDT",
            "walletAddress": "TNPeeaaFB7K9cmo4uQpcU32zGK8G1NYqeL",
            "network": "TRON",
            "createdAt": "2026-06-12T14:05:00Z"
          }
        }
      }
    }
  }
}
```

### 400

```json
{
  "description": "",
  "content": {
    "application/json": {
      "schema": {
        "type": "object",
        "properties": {
          "code": {
            "type": "integer",
            "description": "HTTP status code, duplicated in the body."
          },
          "message": {
            "type": "string",
            "description": "Human-readable message describing the error."
          },
          "errors": {
            "type": [
              "object",
              "null"
            ],
            "properties": {
              "message": {
                "type": "string"
              }
            },
            "description": "Additional error details; null when there are none."
          }
        },
        "required": [
          "code",
          "message",
          "errors"
        ]
      },
      "examples": {
        "Malformed JSON body": {
          "summary": "Malformed JSON body",
          "value": {
            "code": 400,
            "message": "Bad Request",
            "errors": {
              "message": "Failed to parse the request body as JSON: expected value at line 1 column 5"
            }
          }
        },
        "Generic": {
          "summary": "Generic",
          "value": {
            "code": 400,
            "message": "Invalid cursor",
            "errors": null
          }
        }
      }
    }
  },
  "headers": {
    "X-Request-Id": {
      "description": "Unique id of this request (echoed from the request, or generated when omitted). Recorded in Axiym logs — quote it when contacting support about a failed request.",
      "schema": {
        "type": "string",
        "format": "uuid",
        "examples": [
          "3fa85f64-5717-4562-b3fc-2c963f66afa6"
        ]
      }
    }
  }
}
```

### 401

```json
{
  "description": "",
  "content": {
    "application/json": {
      "schema": {
        "type": "object",
        "properties": {
          "code": {
            "type": "integer",
            "description": "HTTP status code, duplicated in the body."
          },
          "message": {
            "type": "string",
            "description": "Human-readable message describing the error."
          },
          "errors": {
            "type": [
              "object",
              "null"
            ],
            "description": "Additional error details; null when there are none."
          }
        },
        "required": [
          "code",
          "message",
          "errors"
        ]
      },
      "examples": {
        "Example 1": {
          "summary": "Example 1",
          "value": {
            "code": 401,
            "message": "Unauthorized",
            "errors": null
          }
        }
      }
    }
  },
  "headers": {
    "X-Request-Id": {
      "description": "Unique id of this request (echoed from the request, or generated when omitted). Recorded in Axiym logs — quote it when contacting support about a failed request.",
      "schema": {
        "type": "string",
        "format": "uuid",
        "examples": [
          "3fa85f64-5717-4562-b3fc-2c963f66afa6"
        ]
      }
    }
  }
}
```

### 403

```json
{
  "description": "Forbidden",
  "content": {
    "application/json": {
      "schema": {
        "type": "object",
        "properties": {
          "code": {
            "type": "integer",
            "description": "HTTP status code, duplicated in the body."
          },
          "message": {
            "type": "string",
            "description": "Human-readable message describing the error."
          },
          "errors": {
            "type": [
              "object",
              "null"
            ],
            "description": "Additional error details; null when there are none."
          }
        },
        "required": [
          "code",
          "message",
          "errors"
        ]
      },
      "examples": {
        "Example 1": {
          "summary": "Example 1",
          "value": {
            "code": 403,
            "message": "Forbidden",
            "errors": null
          }
        }
      }
    }
  },
  "headers": {
    "X-Request-Id": {
      "description": "Unique id of this request (echoed from the request, or generated when omitted). Recorded in Axiym logs — quote it when contacting support about a failed request.",
      "schema": {
        "type": "string",
        "format": "uuid",
        "examples": [
          "3fa85f64-5717-4562-b3fc-2c963f66afa6"
        ]
      }
    }
  }
}
```

### 404

```json
{
  "description": "",
  "content": {
    "application/json": {
      "schema": {
        "type": "object",
        "properties": {
          "code": {
            "type": "integer",
            "description": "HTTP status code, duplicated in the body."
          },
          "message": {
            "type": "string",
            "description": "Human-readable message: either the generic 'Not Found' or a domain-specific one such as 'Client Not Found'."
          },
          "errors": {
            "type": [
              "object",
              "null"
            ],
            "description": "Additional error details; null when there are none."
          }
        },
        "required": [
          "code",
          "message",
          "errors"
        ]
      },
      "examples": {
        "Generic": {
          "summary": "Generic",
          "value": {
            "code": 404,
            "message": "Not Found",
            "errors": null
          }
        },
        "Client not found": {
          "summary": "Client not found",
          "value": {
            "code": 404,
            "message": "Client Not Found",
            "errors": null
          }
        }
      }
    }
  },
  "headers": {
    "X-Request-Id": {
      "description": "Unique id of this request (echoed from the request, or generated when omitted). Recorded in Axiym logs — quote it when contacting support about a failed request.",
      "schema": {
        "type": "string",
        "format": "uuid",
        "examples": [
          "3fa85f64-5717-4562-b3fc-2c963f66afa6"
        ]
      }
    }
  }
}
```

### 422

```json
{
  "description": "The request could not be processed. Two variants share this status: a validation failure, where `errors` is an object keyed by field name, and a business rejection, where `errors` is null and `message` states the reason (e.g. `Documents Not Accepted` when uploading to an already decided onboarding application, or the generic `Unprocessable Request`).",
  "content": {
    "application/json": {
      "schema": {
        "type": "object",
        "properties": {
          "code": {
            "type": "integer",
            "description": "HTTP status code, duplicated in the body."
          },
          "message": {
            "type": "string",
            "description": "`Invalid Parameters` for validation failures; the rejection reason otherwise."
          },
          "errors": {
            "type": [
              "object",
              "null"
            ],
            "description": "Validation failures: object keyed by field name (camelCase); each value is either an array of ValidationError records (leaf), a nested object for struct fields, or an object keyed by array index for list fields. Business rejections: null.",
            "additionalProperties": {
              "$ref": "#/components/schemas/ValidationFieldErrors"
            }
          }
        },
        "required": [
          "code",
          "message",
          "errors"
        ]
      },
      "examples": {
        "Flat field errors": {
          "summary": "Flat field errors",
          "value": {
            "code": 422,
            "message": "Invalid Parameters",
            "errors": {
              "legalEntityName": [
                {
                  "code": "length",
                  "message": null,
                  "params": {
                    "value": "",
                    "min": 1
                  }
                }
              ],
              "currency": [
                {
                  "code": "invalid_currency",
                  "message": null,
                  "params": {
                    "value": "ZZZ"
                  }
                }
              ]
            }
          }
        },
        "Nested struct errors": {
          "summary": "Nested struct errors",
          "value": {
            "code": 422,
            "message": "Invalid Parameters",
            "errors": {
              "legalAddress": {
                "country": [
                  {
                    "code": "invalid_country",
                    "message": null,
                    "params": {
                      "value": "INVALID"
                    }
                  }
                ],
                "postalCode": [
                  {
                    "code": "length",
                    "message": null,
                    "params": {
                      "value": "",
                      "min": 1
                    }
                  }
                ]
              }
            }
          }
        },
        "List item errors": {
          "summary": "List item errors",
          "value": {
            "code": 422,
            "message": "Invalid Parameters",
            "errors": {
              "authorizedDirectors": {
                "0": {
                  "firstName": [
                    {
                      "code": "length",
                      "message": null,
                      "params": {
                        "value": "",
                        "min": 1
                      }
                    }
                  ],
                  "email": [
                    {
                      "code": "email",
                      "message": null,
                      "params": {
                        "value": "not-an-email"
                      }
                    }
                  ]
                }
              }
            }
          }
        },
        "Custom validator": {
          "summary": "Custom validator",
          "value": {
            "code": 422,
            "message": "Invalid Parameters",
            "errors": {
              "disbursementAccount": [
                {
                  "code": "disbursement_account_required",
                  "message": null,
                  "params": {
                    "value": null
                  }
                }
              ]
            }
          }
        },
        "Business rejection": {
          "summary": "Business rejection",
          "value": {
            "code": 422,
            "message": "Documents Not Accepted",
            "errors": null
          }
        }
      }
    }
  },
  "headers": {
    "X-Request-Id": {
      "description": "Unique id of this request (echoed from the request, or generated when omitted). Recorded in Axiym logs — quote it when contacting support about a failed request.",
      "schema": {
        "type": "string",
        "format": "uuid",
        "examples": [
          "3fa85f64-5717-4562-b3fc-2c963f66afa6"
        ]
      }
    }
  }
}
```

### 500

```json
{
  "description": "",
  "content": {
    "application/json": {
      "schema": {
        "type": "object",
        "properties": {
          "code": {
            "type": "integer",
            "description": "HTTP status code, duplicated in the body."
          },
          "message": {
            "type": "string",
            "description": "Human-readable message describing the error."
          },
          "errors": {
            "type": [
              "object",
              "null"
            ],
            "description": "Additional error details; null when there are none."
          }
        },
        "required": [
          "code",
          "message",
          "errors"
        ]
      },
      "examples": {
        "Example 1": {
          "summary": "Example 1",
          "value": {
            "code": 500,
            "message": "Internal Error",
            "errors": null
          }
        }
      }
    }
  },
  "headers": {
    "X-Request-Id": {
      "description": "Unique id of this request (echoed from the request, or generated when omitted). Recorded in Axiym logs — quote it when contacting support about a failed request.",
      "schema": {
        "type": "string",
        "format": "uuid",
        "examples": [
          "3fa85f64-5717-4562-b3fc-2c963f66afa6"
        ]
      }
    }
  }
}
```

## Operation metadata

```json
{
  "tags": [
    "Address Book"
  ],
  "operationId": "getAddressBookEntry"
}
```

## Referenced definitions

- [`#/components/parameters/DestinationId`](#definition-1)
- [`#/components/parameters/RequestId`](#definition-2)
- [`#/components/schemas/AddressBookEntry`](#definition-3)
- [`#/components/schemas/BankAddressBookEntry`](#definition-4)
- [`#/components/schemas/DestinationStatus`](#definition-5)
- [`#/components/schemas/Currency`](#definition-6)
- [`#/components/schemas/Bank`](#definition-7)
- [`#/components/schemas/BankAddress`](#definition-8)
- [`#/components/schemas/CountryCode`](#definition-9)
- [`#/components/schemas/WalletAddressBookEntry`](#definition-10)
- [`#/components/schemas/Network`](#definition-11)
- [`#/components/responses/BadRequest`](#definition-12)
- [`#/components/responses/Unauthorized`](#definition-13)
- [`#/components/responses/Forbidden`](#definition-14)
- [`#/components/responses/NotFound`](#definition-15)
- [`#/components/responses/InvalidParams`](#definition-16)
- [`#/components/schemas/ValidationFieldErrors`](#definition-17)
- [`#/components/schemas/ValidationError`](#definition-18)
- [`#/components/responses/InternalError`](#definition-19)

### definition-1

`#/components/parameters/DestinationId`

```json
{
  "name": "destinationId",
  "in": "path",
  "required": true,
  "schema": {
    "type": "string",
    "format": "uuid",
    "examples": [
      "e2c8a4f6-7b1d-4e3a-9c5f-8a0b2d4e6f1c"
    ]
  },
  "description": "Address book entry identifier (UUID)."
}
```

### definition-2

`#/components/parameters/RequestId`

```json
{
  "name": "X-Request-Id",
  "in": "header",
  "required": false,
  "description": "Optional client-generated request identifier (UUID recommended) for end-to-end tracing.\n\nAxiym echoes it in the `X-Request-Id` response header and records it in logs. Quote it when contacting support. If omitted, Axiym generates one.",
  "schema": {
    "type": "string",
    "format": "uuid",
    "examples": [
      "3fa85f64-5717-4562-b3fc-2c963f66afa6"
    ]
  }
}
```

### definition-3

`#/components/schemas/AddressBookEntry`

```json
{
  "description": "A registered external bank account or wallet address in the address book, with its status and creation date.\n\n- A bank destination contains `accountNumber` and `bank`.\n- A wallet destination contains `walletAddress` and `network`.\n\nThe two field sets never appear together.",
  "oneOf": [
    {
      "$ref": "#/components/schemas/BankAddressBookEntry"
    },
    {
      "$ref": "#/components/schemas/WalletAddressBookEntry"
    }
  ]
}
```

### definition-4

`#/components/schemas/BankAddressBookEntry`

```json
{
  "type": "object",
  "title": "Bank account",
  "required": [
    "destinationId",
    "status",
    "currency",
    "accountNumber",
    "bank"
  ],
  "properties": {
    "destinationId": {
      "type": "string",
      "format": "uuid",
      "description": "Address book entry identifier (UUID).",
      "examples": [
        "3fa85f64-5717-4562-b3fc-2c963f66afa6"
      ]
    },
    "status": {
      "$ref": "#/components/schemas/DestinationStatus",
      "description": "Address book entry status.",
      "examples": [
        "ACTIVE"
      ]
    },
    "currency": {
      "$ref": "#/components/schemas/Currency",
      "description": "Currency the destination is paid in.",
      "examples": [
        "USD"
      ]
    },
    "accountNumber": {
      "type": "string",
      "description": "Bank account number.",
      "examples": [
        "0123456789"
      ]
    },
    "bank": {
      "$ref": "#/components/schemas/Bank",
      "description": "Destination bank details."
    },
    "createdAt": {
      "type": "string",
      "format": "date-time",
      "description": "Creation timestamp. Formatted in ISO 8601.",
      "examples": [
        "2026-06-12T14:05:00Z"
      ]
    }
  }
}
```

### definition-5

`#/components/schemas/DestinationStatus`

```json
{
  "type": "string",
  "description": "- `PENDING_REVIEW` — awaiting review.\n- `ACTIVE` — available for withdrawals.\n- `SUSPENDED` — temporarily unavailable.\n- `CLOSED` — permanently retired.",
  "enum": [
    "PENDING_REVIEW",
    "ACTIVE",
    "SUSPENDED",
    "CLOSED"
  ],
  "examples": [
    "ACTIVE"
  ]
}
```

### definition-6

`#/components/schemas/Currency`

```json
{
  "type": "string",
  "description": "Currency code — ISO 4217 (e.g. USD, EUR) or a supported digital currency (USDT, USDC).",
  "examples": [
    "USD"
  ]
}
```

### definition-7

`#/components/schemas/Bank`

```json
{
  "type": "object",
  "description": "Destination bank details. Present on bank destinations only.\n\nThe bank address country selects the applicable payout corridor rules. Supply `swiftBic`, `clearingCode`, or `clearingSystemCode` when that corridor requires them.",
  "additionalProperties": false,
  "required": [
    "bankName",
    "address"
  ],
  "properties": {
    "bankName": {
      "type": "string",
      "minLength": 1,
      "description": "Bank name.",
      "examples": [
        "Bank of America"
      ]
    },
    "address": {
      "$ref": "#/components/schemas/BankAddress"
    },
    "swiftBic": {
      "type": "string",
      "pattern": "^[A-Z]{6}[A-Z0-9]{2}([A-Z0-9]{3})?$",
      "description": "ISO 9362 SWIFT/BIC, when required for the corridor.",
      "examples": [
        "BOFAUS3NXXX"
      ]
    },
    "clearingCode": {
      "type": "string",
      "description": "Local clearing or routing code, when required for the corridor.",
      "examples": [
        "026009593"
      ]
    },
    "clearingSystemCode": {
      "type": "string",
      "description": "Clearing system the code belongs to. Axiym derives it from the bank country; supply it where a country has more than one system.",
      "examples": [
        "USABA"
      ]
    }
  }
}
```

### definition-8

`#/components/schemas/BankAddress`

```json
{
  "type": "object",
  "description": "Postal address of the destination bank.\n\n`country` is always required because it selects the applicable corridor rules. Supply the remaining address fields when the corridor or a correspondent requires them.",
  "additionalProperties": false,
  "required": [
    "country"
  ],
  "properties": {
    "streetName": {
      "type": "string"
    },
    "buildingNumber": {
      "type": "string"
    },
    "city": {
      "type": "string",
      "examples": [
        "New York"
      ]
    },
    "region": {
      "type": "string"
    },
    "postalCode": {
      "type": "string"
    },
    "country": {
      "$ref": "#/components/schemas/CountryCode"
    }
  }
}
```

### definition-9

`#/components/schemas/CountryCode`

```json
{
  "type": "string",
  "pattern": "^[A-Z]{2}$",
  "description": "ISO 3166-1 alpha-2 country code.",
  "examples": [
    "US"
  ]
}
```

### definition-10

`#/components/schemas/WalletAddressBookEntry`

```json
{
  "type": "object",
  "title": "Wallet address",
  "required": [
    "destinationId",
    "status",
    "currency",
    "walletAddress",
    "network"
  ],
  "properties": {
    "destinationId": {
      "type": "string",
      "format": "uuid",
      "description": "Address book entry identifier (UUID).",
      "examples": [
        "e2c8a4f6-7b1d-4e3a-9c5f-8a0b2d4e6f1c"
      ]
    },
    "status": {
      "$ref": "#/components/schemas/DestinationStatus",
      "description": "Address book entry status.",
      "examples": [
        "ACTIVE"
      ]
    },
    "currency": {
      "$ref": "#/components/schemas/Currency",
      "description": "Currency the destination is paid in.",
      "examples": [
        "USDT"
      ]
    },
    "walletAddress": {
      "type": "string",
      "description": "Destination wallet address; static and reusable.",
      "examples": [
        "TNPeeaaFB7K9cmo4uQpcU32zGK8G1NYqeL"
      ]
    },
    "network": {
      "$ref": "#/components/schemas/Network",
      "description": "Network of the wallet address.",
      "examples": [
        "TRON"
      ]
    },
    "createdAt": {
      "type": "string",
      "format": "date-time",
      "description": "Creation timestamp. Formatted in ISO 8601.",
      "examples": [
        "2026-06-12T14:05:00Z"
      ]
    }
  }
}
```

### definition-11

`#/components/schemas/Network`

```json
{
  "type": "string",
  "description": "Wallet network.",
  "enum": [
    "TRON",
    "AVALANCHE"
  ],
  "examples": [
    "TRON"
  ]
}
```

### definition-12

`#/components/responses/BadRequest`

```json
{
  "description": "",
  "content": {
    "application/json": {
      "schema": {
        "type": "object",
        "properties": {
          "code": {
            "type": "integer",
            "description": "HTTP status code, duplicated in the body."
          },
          "message": {
            "type": "string",
            "description": "Human-readable message describing the error."
          },
          "errors": {
            "type": [
              "object",
              "null"
            ],
            "properties": {
              "message": {
                "type": "string"
              }
            },
            "description": "Additional error details; null when there are none."
          }
        },
        "required": [
          "code",
          "message",
          "errors"
        ]
      },
      "examples": {
        "Malformed JSON body": {
          "summary": "Malformed JSON body",
          "value": {
            "code": 400,
            "message": "Bad Request",
            "errors": {
              "message": "Failed to parse the request body as JSON: expected value at line 1 column 5"
            }
          }
        },
        "Generic": {
          "summary": "Generic",
          "value": {
            "code": 400,
            "message": "Invalid cursor",
            "errors": null
          }
        }
      }
    }
  },
  "headers": {
    "X-Request-Id": {
      "description": "Unique id of this request (echoed from the request, or generated when omitted). Recorded in Axiym logs — quote it when contacting support about a failed request.",
      "schema": {
        "type": "string",
        "format": "uuid",
        "examples": [
          "3fa85f64-5717-4562-b3fc-2c963f66afa6"
        ]
      }
    }
  }
}
```

### definition-13

`#/components/responses/Unauthorized`

```json
{
  "description": "",
  "content": {
    "application/json": {
      "schema": {
        "type": "object",
        "properties": {
          "code": {
            "type": "integer",
            "description": "HTTP status code, duplicated in the body."
          },
          "message": {
            "type": "string",
            "description": "Human-readable message describing the error."
          },
          "errors": {
            "type": [
              "object",
              "null"
            ],
            "description": "Additional error details; null when there are none."
          }
        },
        "required": [
          "code",
          "message",
          "errors"
        ]
      },
      "examples": {
        "Example 1": {
          "summary": "Example 1",
          "value": {
            "code": 401,
            "message": "Unauthorized",
            "errors": null
          }
        }
      }
    }
  },
  "headers": {
    "X-Request-Id": {
      "description": "Unique id of this request (echoed from the request, or generated when omitted). Recorded in Axiym logs — quote it when contacting support about a failed request.",
      "schema": {
        "type": "string",
        "format": "uuid",
        "examples": [
          "3fa85f64-5717-4562-b3fc-2c963f66afa6"
        ]
      }
    }
  }
}
```

### definition-14

`#/components/responses/Forbidden`

```json
{
  "description": "Forbidden",
  "content": {
    "application/json": {
      "schema": {
        "type": "object",
        "properties": {
          "code": {
            "type": "integer",
            "description": "HTTP status code, duplicated in the body."
          },
          "message": {
            "type": "string",
            "description": "Human-readable message describing the error."
          },
          "errors": {
            "type": [
              "object",
              "null"
            ],
            "description": "Additional error details; null when there are none."
          }
        },
        "required": [
          "code",
          "message",
          "errors"
        ]
      },
      "examples": {
        "Example 1": {
          "summary": "Example 1",
          "value": {
            "code": 403,
            "message": "Forbidden",
            "errors": null
          }
        }
      }
    }
  },
  "headers": {
    "X-Request-Id": {
      "description": "Unique id of this request (echoed from the request, or generated when omitted). Recorded in Axiym logs — quote it when contacting support about a failed request.",
      "schema": {
        "type": "string",
        "format": "uuid",
        "examples": [
          "3fa85f64-5717-4562-b3fc-2c963f66afa6"
        ]
      }
    }
  }
}
```

### definition-15

`#/components/responses/NotFound`

```json
{
  "description": "",
  "content": {
    "application/json": {
      "schema": {
        "type": "object",
        "properties": {
          "code": {
            "type": "integer",
            "description": "HTTP status code, duplicated in the body."
          },
          "message": {
            "type": "string",
            "description": "Human-readable message: either the generic 'Not Found' or a domain-specific one such as 'Client Not Found'."
          },
          "errors": {
            "type": [
              "object",
              "null"
            ],
            "description": "Additional error details; null when there are none."
          }
        },
        "required": [
          "code",
          "message",
          "errors"
        ]
      },
      "examples": {
        "Generic": {
          "summary": "Generic",
          "value": {
            "code": 404,
            "message": "Not Found",
            "errors": null
          }
        },
        "Client not found": {
          "summary": "Client not found",
          "value": {
            "code": 404,
            "message": "Client Not Found",
            "errors": null
          }
        }
      }
    }
  },
  "headers": {
    "X-Request-Id": {
      "description": "Unique id of this request (echoed from the request, or generated when omitted). Recorded in Axiym logs — quote it when contacting support about a failed request.",
      "schema": {
        "type": "string",
        "format": "uuid",
        "examples": [
          "3fa85f64-5717-4562-b3fc-2c963f66afa6"
        ]
      }
    }
  }
}
```

### definition-16

`#/components/responses/InvalidParams`

```json
{
  "description": "The request could not be processed. Two variants share this status: a validation failure, where `errors` is an object keyed by field name, and a business rejection, where `errors` is null and `message` states the reason (e.g. `Documents Not Accepted` when uploading to an already decided onboarding application, or the generic `Unprocessable Request`).",
  "content": {
    "application/json": {
      "schema": {
        "type": "object",
        "properties": {
          "code": {
            "type": "integer",
            "description": "HTTP status code, duplicated in the body."
          },
          "message": {
            "type": "string",
            "description": "`Invalid Parameters` for validation failures; the rejection reason otherwise."
          },
          "errors": {
            "type": [
              "object",
              "null"
            ],
            "description": "Validation failures: object keyed by field name (camelCase); each value is either an array of ValidationError records (leaf), a nested object for struct fields, or an object keyed by array index for list fields. Business rejections: null.",
            "additionalProperties": {
              "$ref": "#/components/schemas/ValidationFieldErrors"
            }
          }
        },
        "required": [
          "code",
          "message",
          "errors"
        ]
      },
      "examples": {
        "Flat field errors": {
          "summary": "Flat field errors",
          "value": {
            "code": 422,
            "message": "Invalid Parameters",
            "errors": {
              "legalEntityName": [
                {
                  "code": "length",
                  "message": null,
                  "params": {
                    "value": "",
                    "min": 1
                  }
                }
              ],
              "currency": [
                {
                  "code": "invalid_currency",
                  "message": null,
                  "params": {
                    "value": "ZZZ"
                  }
                }
              ]
            }
          }
        },
        "Nested struct errors": {
          "summary": "Nested struct errors",
          "value": {
            "code": 422,
            "message": "Invalid Parameters",
            "errors": {
              "legalAddress": {
                "country": [
                  {
                    "code": "invalid_country",
                    "message": null,
                    "params": {
                      "value": "INVALID"
                    }
                  }
                ],
                "postalCode": [
                  {
                    "code": "length",
                    "message": null,
                    "params": {
                      "value": "",
                      "min": 1
                    }
                  }
                ]
              }
            }
          }
        },
        "List item errors": {
          "summary": "List item errors",
          "value": {
            "code": 422,
            "message": "Invalid Parameters",
            "errors": {
              "authorizedDirectors": {
                "0": {
                  "firstName": [
                    {
                      "code": "length",
                      "message": null,
                      "params": {
                        "value": "",
                        "min": 1
                      }
                    }
                  ],
                  "email": [
                    {
                      "code": "email",
                      "message": null,
                      "params": {
                        "value": "not-an-email"
                      }
                    }
                  ]
                }
              }
            }
          }
        },
        "Custom validator": {
          "summary": "Custom validator",
          "value": {
            "code": 422,
            "message": "Invalid Parameters",
            "errors": {
              "disbursementAccount": [
                {
                  "code": "disbursement_account_required",
                  "message": null,
                  "params": {
                    "value": null
                  }
                }
              ]
            }
          }
        },
        "Business rejection": {
          "summary": "Business rejection",
          "value": {
            "code": 422,
            "message": "Documents Not Accepted",
            "errors": null
          }
        }
      }
    }
  },
  "headers": {
    "X-Request-Id": {
      "description": "Unique id of this request (echoed from the request, or generated when omitted). Recorded in Axiym logs — quote it when contacting support about a failed request.",
      "schema": {
        "type": "string",
        "format": "uuid",
        "examples": [
          "3fa85f64-5717-4562-b3fc-2c963f66afa6"
        ]
      }
    }
  }
}
```

### definition-17

`#/components/schemas/ValidationFieldErrors`

```json
{
  "description": "Recursive validation-error structure.\n\n- A leaf field contains an array of `ValidationError` records.\n- A nested object is keyed by field name.\n- A list is keyed by array index.",
  "oneOf": [
    {
      "type": "array",
      "items": {
        "$ref": "#/components/schemas/ValidationError"
      }
    },
    {
      "type": "object",
      "additionalProperties": {
        "$ref": "#/components/schemas/ValidationFieldErrors"
      },
      "properties": {}
    }
  ]
}
```

### definition-18

`#/components/schemas/ValidationError`

```json
{
  "type": "object",
  "description": "Single validation error from the `validator` crate.",
  "properties": {
    "code": {
      "type": "string",
      "description": "Validation rule code (e.g. 'length', 'email', 'invalid_currency', 'disbursement_account_required').",
      "examples": [
        "length"
      ]
    },
    "message": {
      "type": [
        "string",
        "null"
      ],
      "description": "Human-readable message.",
      "examples": [
        "string"
      ]
    },
    "params": {
      "type": "object",
      "description": "Rule-specific parameters. Always includes `value` (the offending input). Additional keys depend on the rule (e.g. `min`, `max` for length).",
      "properties": {
        "value": {
          "description": "The submitted value that failed validation.",
          "examples": [
            "string"
          ]
        }
      }
    }
  },
  "required": [
    "code",
    "params"
  ]
}
```

### definition-19

`#/components/responses/InternalError`

```json
{
  "description": "",
  "content": {
    "application/json": {
      "schema": {
        "type": "object",
        "properties": {
          "code": {
            "type": "integer",
            "description": "HTTP status code, duplicated in the body."
          },
          "message": {
            "type": "string",
            "description": "Human-readable message describing the error."
          },
          "errors": {
            "type": [
              "object",
              "null"
            ],
            "description": "Additional error details; null when there are none."
          }
        },
        "required": [
          "code",
          "message",
          "errors"
        ]
      },
      "examples": {
        "Example 1": {
          "summary": "Example 1",
          "value": {
            "code": 500,
            "message": "Internal Error",
            "errors": null
          }
        }
      }
    }
  },
  "headers": {
    "X-Request-Id": {
      "description": "Unique id of this request (echoed from the request, or generated when omitted). Recorded in Axiym logs — quote it when contacting support about a failed request.",
      "schema": {
        "type": "string",
        "format": "uuid",
        "examples": [
          "3fa85f64-5717-4562-b3fc-2c963f66afa6"
        ]
      }
    }
  }
}
```