Description

The API addon exposes Formidable Forms forms via REST, allowing you to create, read, update, and delete entries, forms, and fields through HTTP requests authenticated with an application key. The extension also sends submissions to external systems through webhooks configurable per form, connecting Formidable to CRMs, ERPs, and custom applications without having to write an integration layer on the server.

Key Features

  • Complete REST endpoints
    Provides HTTP routes for Formidable entries, forms, fields, and views.
  • API key authentication
    Generates per-user keys in the WordPress admin panel to securely authorize external requests.
  • Per-form webhooks
    Sends submission data to external URLs the moment the entry is recorded.
  • JSON and XML support
    Returns responses in standardized formats, ready for consumption by third-party applications.
  • Remote CRUD operations
    Allows creating and updating entries and form structures directly through external calls.

API Benefits

  • Integration with any system
    Connects Formidable to CRMs, ERPs, and in-house platforms without code on the WordPress server.
  • Data flow automation
    Triggers the sending of entries to external services at the moment of form submission.
  • Information centralization
    Keeps collected data synchronized between WordPress and internal operational tools.
  • Freedom for developers
    Enables creating headless applications and tailor-made integrations using Formidable as a collection backend.

Who Is It For?

  • Developers who need to integrate Formidable forms with internal company systems.
  • Agencies delivering projects with synchronization between WordPress, CRMs, and corporate ERPs.
  • Marketing and operations teams that want to automatically distribute leads and responses to multiple tools.

Aimed at projects that treat Formidable Forms as a capture hub, this component opens the plugin to the world via REST and webhooks, offering the technical foundation for custom integrations. It is recommended when forms need to feed external systems in real time, eliminating the need for additional middleware and keeping full control within WordPress itself.

Frequently asked questions

Is Formidable Forms API GPL-licensed?

Yes. Formidable Forms API is distributed under the GPL (GNU General Public License). You may legally use, modify and redistribute it on as many sites as you want.

Can I use Formidable Forms API on multiple sites?

Yes. You can use Formidable Forms API on multiple sites. The number of sites connected to Ultrapack Auto Updater is limited by your plan.

How much does Formidable Forms API cost at Ultrapack?

Formidable Forms API costs US$2.99 as a single purchase, and it is also included in the subscription plans starting at US$12/mo (VIP I).

Does Formidable Forms API include updates?

Yes. The current version of Formidable Forms API is 2.0.1, published at Ultrapack on Aug 21, 2026. Subscribers update straight from the WordPress dashboard with UAU (Ultrapack Auto Updater).

Is Formidable Forms API scanned before publication?

Yes. Every version of Formidable Forms API goes through a malware scan (ClamAV and YARA rules, at UltraHub) before it is published.