List Field Types is a WordPress ability from Ninja Forms — usable via Easy MCP AI, which connects Claude, ChatGPT, and any AI assistant to your site.
Install Free Plugin →List Field Types
Read-onlyList every field type Ninja Forms supports, for discovering what can be added to a form.
Requires the Ninja Forms plugin on WordPress 6.9+ for the Abilities API (all 32 abilities are registered only when the wp_register_ability() function exists, via NF_Abilities_Integration::load_abilities_api() running on plugins_loaded). Every ability is gated by the same ninja_forms_ability_can_manage_forms() permission callback, requiring the caller to hold WordPress's manage_options capability or Ninja Forms' own nf_edit_forms capability.
What it does
This ability returns the catalog of field types Ninja Forms can add to a form — name, nicename, section, icon, and default label for each — in either a 'simple' or 'detailed' format. It gives an AI assistant a ground-truth list of valid type values to pass into ninjaforms/add-field, instead of guessing at type strings or hallucinating field types that don't exist in this Ninja Forms install (including any that add-ons may have registered).
See it in action
You ask your AI assistant
"What field types can I add to a Ninja Forms form?"
Inputs
| Name | Type | Required | Description |
|---|---|---|---|
| format | string | No | Output format: simple or detailed. Defaults to 'simple'. |
Returns
An object with a 'success' boolean, a 'field_types' array (each with name, nicename, section, icon, default_label), a 'count', and a 'message'.
Permission
The current user must have WordPress's 'manage_options' capability or Ninja Forms' own 'nf_edit_forms' capability (checked via the shared ninja_forms_ability_can_manage_forms() permission callback).
More Ninja Forms abilities
Add Action
Add a post-submission action to a form — email, redirect, success message, or save.
Add Calculation
Add a calculator formula to a form for use in calc fields and conditional logic.
Add Field
Add a single field to an existing form, to be called once per field when building out a form.
Create Form
Create a new Ninja Forms form, optionally with fields, actions, and calculations, in a single call.
Delete Action
Permanently delete an action from a form.
Delete Calculation
Permanently delete a calculation from a form.