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

# JSON Data

Layer uses a standardized json structure across all endpoints. There are only 3 possible top level fields.

### Data

Contains the requested data from the endpoint and can be either a JSON list or a JSON object.

* Every top level object or item in an array will contain a `type` field indicating the entity type.
* `data` will only be present if the result is successful, in which case there will be a `2**` status code and no `error` field.

```json theme={null}
{
  "data":[
    {
      "type":"Business",
      "id":"08cee9cc-389e-44ea-a42e-ffb12670f515",
      "external_id":"id-1",
      "legal_name":"Acme, Inc.",
      "us_state":"AZ",
      "entity_type":"LLC",
      "phone_number":"53924476123",
      "imported_at":"2023-07-13T17:25:59.292451Z",
      "updated_at":"2023-07-13T17:25:59.292451Z",
      "archived_at":null
    },
    {
      "type":"Business",
      "id":"e348d217-1788-494c-9c1c-d8be13b89aba",
      "external_id":"id-2",
      "legal_name":"Acme, Inc.",
      "us_state":"AZ",
      "entity_type":"LLC",
      "phone_number":"69565771257",
      "imported_at":"2023-07-13T17:25:59.720376Z",
      "updated_at":"2023-07-13T17:25:59.720376Z",
      "archived_at":null
    }
  ],
  "meta":{
    
  }
}
```

### Errors

An array of `error` objects. `error` objects will contain the following fields.

* `type`: One of a fixed set of categories. Helpful for categorizing & processing errors.
* `description`: A human readable error description.
* `error_enum`: A stable, machine-readable identifier for programmatically handling specific error conditions. Only present for `4**` client errors—not included for `5**` server errors. Use `error_enum` instead of parsing `description`, as enum values remain stable across API versions while descriptions may change.
* `meta`: Optional additional information.

`errors` will be present only if the request is unsuccessful, in which case there will be a `4**` or `5**` status code and no `data` field.

```json theme={null}
{
  "errors": [
    {
      "type": "Plaid",
      "description": "Plaid credentials must be set before you can add plaid items to businesses. See /v1/configure/plaid",
      "error_enum": "PlaidCredentialsNotConfigured"
    }
  ]
}
```

### Meta

An optional object that may be used to communicate metadata about the request.
Example use cases include:

* Idempotency
* Pagination
* Rate limits