Developers Version 4.15.1 Updated November 7, 2026 REST API, WP-CLI, hooks, schema, custom actions, data variables, CSS theming. REST API ReferenceHooks ReferenceForm SchemaCustom ActionsData VariablesCSS ThemingWP-CLI Commands In this sectionREST API ReferenceCore Forms exposes a comprehensive REST API under the cf/v1 namespace. All endpoints require the edit_forms capability (WordPress administrator by default).Hooks ReferenceCore Forms provides filters and actions throughout the form lifecycle for customization.Form SchemaLearn how to use Form Schema in Core Forms for WordPress, including setup, configuration, practical examples, and verification steps.Custom ActionsLearn how to use Custom Actions in Core Forms for WordPress, including setup, configuration, practical examples, and verification steps.Data VariablesCore Forms supports two variable systems for inserting dynamic data into emails, redirects, form markup, and other contexts.CSS ThemingCore Forms ships with a classless-first default theme ( form-theme.css ) that styles HTML form elements inside.cf-form containers.WP-CLI CommandsCore Forms 4.4 registers three command groups under wp core-forms: form for form definitions, submission for bulk submission maintenance, and license for the… Share