---
title: "Create update link token for existing financial institution"
method: POST
path: "/accounts/{account_id}/addresses/{address_id}/update-link-token"
tags: ["Financial Institutions"]
---

# Create update link token for existing financial institution

`POST /accounts/{account_id}/addresses/{address_id}/update-link-token`

## Path parameters

- `account_id` string, required — ID of the resource
- `fi_id` string, required — ID of the resource

## Request body

- CreateLinkTokenRequest
  - `android_package_name` string — Android package name for OAuth return-to-app. Must be pre-registered for the account and allowlisted in Plaid Dashboard. Required for Android OAuth flows. Cannot be used with redirect_uri.
  - `date_of_birth` string — User's date of birth (optional)
  - `email_address` string — User's email address (optional)
  - `legal_name` string — User's legal name (optional)
  - `phone_number` string — User's phone number (optional)
  - `redirect_uri` string, uri — Universal link for iOS OAuth return-to-app. Must be pre-registered for the account and allowlisted in Plaid Dashboard. Required for iOS OAuth flows. Cannot be used with android_package_name.

## Response `200`

OK

- LinkTokenResponse
  - `callback_url` string, required — The URL to POST the public token tox after Plaid Link completion to register the account
  - `expiration` string, required — ISO 8601 timestamp when the link token expires
  - `link_token` string, required — The Plaid link token for bank authentication

## Other responses

- `400` — Bad Request
- `401` — Unauthorized
- `403` — Forbidden
- `404` — Not Found

---

[API](https://skmtc.net/brale/apis/brale-api.md) · [All operations](https://skmtc.net/brale/apis/brale-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/brale/brale-api/revisions/7446d49997c2/schema)