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

# Plan availability

> Free and Pro capabilities enforced by public API writes.

The public API enforces the same plan capabilities as the dashboard.

| Capability                           | Free       | Pro / eligible paid plan              |
| ------------------------------------ | ---------- | ------------------------------------- |
| Standard question and content blocks | Yes        | Yes                                   |
| Signature blocks                     | No         | Yes                                   |
| Gate blocks                          | No         | Yes                                   |
| File-upload blocks                   | No         | Yes, when file uploads are enabled    |
| Payment blocks                       | No         | Yes, when payments are enabled        |
| Standard theme tokens                | Yes        | Yes                                   |
| Custom CSS                           | No         | Yes                                   |
| Show Onlyform branding               | Yes        | Yes                                   |
| Remove Onlyform branding             | No         | Yes, when branding removal is enabled |
| Completion redirect                  | No         | Yes, when redirects are enabled       |
| Questions per form                   | Plan limit | Plan limit                            |
| Responses per form                   | Plan limit | Plan limit                            |

A restricted write returns:

```json theme={null}
{
  "type": "authorization_error",
  "code": "PLAN_RESTRICTION",
  "message": "Your plan does not support this change."
}
```

The API permits removing a paid feature from a form after a downgrade. It does not permit adding or changing that feature until the required capability is available again.