Last year, Nylas removed support for metadata on accounts. Our documentation has been updated to reflect the changes.

metadata and query parameters (metadata_key, metadata_pair, metadata_value) are no longer supported for the following requests:

• GET /a/{client_id}/accounts

• GET /a/{client_id}/accounts/{id}

• GET /account

The following request is no longer supported:

• PUT /a/{client_id}/accounts/{id}