---
title: "Create Identification"
method: POST
path: "/identifications"
---

# Create Identification

`POST /identifications`

## Request

- Base URL: `https://app.moderntreasury.com/api`
- URL: `https://app.moderntreasury.com/api/identifications`
- Auth: HTTP basic

Creates a single `identification` on an existing legal entity, without resending the legal entity's other identifications. Identification documents may be included inline via `documents`, or attached later with [Create Document](ref:create-document).

## Request body

- object
  - `legal_entity_id` string, required: The UUID of the legal entity the identification belongs to.
  - `id_type` string, required: The type of ID number. See list of [Identifications](ref:identifications).
  - `id_number` string, required: The ID number of the identification document. Not included in API responses.
  - `issuing_country` string: The ISO 3166-1 alpha-2 country code of the country that issued the identification. Not needed for ID types with a country code prepended.
  - `issuing_region` string: The sub-national region (state, province, territory) that issued the identification document. For a US driver's license issued in California, this would be "CA".
  - `expiration_date` string, date: The date when the Identification is no longer considered valid by the issuing authority.
  - `documents` object[]: A list of Documents to be created and associated with this identification. Individuals require identification documents: a driver's license needs both `identification_front` and `identification_back`, a passport only `identification_front`.
    - `document_type` 'ein_letter' | 'identification_front' | 'identification_back'
    - `file_data` string, required: Base64-encoded bytes of the file to be uploaded.
    - `filename` string, required

## Response `201`

201

## Changes

- **2026-11-03** `e31c6638c72e`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/modern-treasury/apis/modern-treasury-api/changes/identifications/post.md)

---

[API](https://skmtc.dev/modern-treasury/apis/modern-treasury-api.md) - [All operations](https://skmtc.dev/modern-treasury/apis/modern-treasury-api/llms.txt) - [OpenAPI document](https://skmtc.dev/modern-treasury/apis/modern-treasury-api/revisions/e31c6638c72e?raw)