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

# Nexus API Changelog

## 2025

<Update label="08/12/2025" tags={["Nexus API"]}>
  Added: `is_disabled_by_client` to institution response.
</Update>

<Update label="01/01/2025" tags={["Nexus API"]}>
  Removed: Support for the `cusip`, `cusip_set_by`, and `cusip_set_by_name` fields has been removed.
</Update>

## 2024

<Update label="11/01/2024" tags={["Nexus API"]}>
  Added: The following endpoints now accept a `use_cases` parameter: `POST /members`, `PUT /members/{member_guid}`. This only applies if you've opted in to using use cases.
</Update>

<Update label="11/01/2024" tags={["Nexus API"]}>
  Added: The following GET endpoints now accept a `use_case` query parameter: `/members`, `/accounts`, `/accounts/partner_created`, `/accounts/user_created`, `/transactions`, `/transactions/by_category_guid/{category_guid}/by_date/{start_date}/{end_date}`, `/transactions/by_top_level_category_guid/{top_level_category_guids}/by_date/{start_date}/{end_date}`, `/transactions/created_between/{start_date}/{end_date}`, `/transactions/updated_between/{start_date}/{end_date}`. This only applies if you've opted in to using use cases.
</Update>

<Update label="11/01/2024" tags={["Nexus API"]}>
  Updated: The following GET endpoints will only aggregate data if `PFM` is defined as a use case: `/members/{member_guid}/aggregate`, `/members/aggregate`, `/members/{member_guid}/refresh`, `/members/refresh`. This only applies if you've opted in to using use cases.
</Update>