claudeindex
Plugin

postbox

Collect structured data, create forms, and set up submission endpoints. Covers contact, feedback, signup, waitlist, and any form type. Manages submissions, generates frontend integration code, configures webhooks, notifications, and spam protection via Postbox API.

Installation

1

Add the marketplace

/plugin marketplace add Variant-Systems/skills
2

Install plugins

/plugin

Run these commands in Claude Code to add this plugin to your environment. The marketplace must be added before you can install its plugins.