| # | Id | Type | Description |
| 1 | id | OperationId | Operation ID (e.g. name) of this API |
| 2 | availability | Availability | Whether and how this API is currently supported |
| 3 | alsoSupported | Array of OperationId | Additional FDX API endpoints supported at this API, e.g. Transactions within Accounts, or TxImages within Transactions |
| 4 | version | string | Data provider's implementation version number for this operation, which is unrelated to the FDX API version |
| 5 | fdxVersions | Array of FdxVersion | FDX schema versions supported at this endpoint |
| 6 | cutOffTime | Timestamp | Cut off time for same-day execution of activity request submitted to this API. Alternatively, the as-of time when EOD account balances are typically set |
| 7 | link | HateoasLink | General HATEOAS link for this API, specifying supported action (GET, POST, etc) and contentTypes (application/json, image/png, etc), but without any path parameter values |