Formidable accept.blue Payment Gateway

Description

Payment Collection

• Hosted Tokenization iFrame — Card data is entered inside an accept.blue-hosted iFrame embedded in your form. Raw card numbers never pass through your server, significantly reducing PCI DSS scope.
• One-time charges — Charge a fixed or dynamic amount on form submission.
• Authorize-only mode — Place a hold on the card without capturing funds. Capture or adjust-capture manually from the admin panel when ready to settle.
• 3-D Secure 2 (3DS2) — EMV 3DS2 browser-based authentication available as an optional setting per form action, adding an additional layer of liability shift for card-not-present transactions.

Recurring Billing and Installments

• Recurring subscriptions — Supported intervals: daily, weekly, bi-weekly, monthly, bi-monthly, quarterly, bi-annually, and annually. Subscription schedules are created in accept.blue and linked to the Formidable entry.
• Installment plans — Split a total charge into a fixed number of automatic payments spread over a chosen interval. Ideal for payment plans, tuition, or membership deposits.

Refunds, Voids, and Captures

• Refunds — Issue full or partial refunds directly from the Formidable Forms payment detail page without leaving WordPress.
• Voids — Cancel an unsettled authorization before it is captured and settled.
• Capture and Adjust-Capture — Settle a prior authorization at the original amount or at an adjusted amount from the admin transactions panel.

Admin Transactions Panel

• Dedicated WordPress admin screen listing all accept.blue transactions associated with Formidable Forms entries.
• Filterable by date range, transaction status, and form.
• Revenue summary statistics displayed at the top of the panel.
• One-click sync to pull the latest transaction status from accept.blue.
• CSV export for accounting, reconciliation, and reporting workflows.

Webhooks

A signed REST API webhook endpoint receives real-time payment lifecycle events from accept.blue — including charges, settlements, refunds, and subscription events — and updates transaction records in WordPress automatically. Signature verification ensures only legitimate accept.blue payloads are processed.

Fraud Shield

• IP velocity — Block or flag submissions from IP addresses that exceed a configurable charge attempt threshold within a time window.
• Email velocity — Limit the number of transactions associated with the same email address.
• BIN block-list — Reject cards matching specified Bank Identification Numbers.
• Country block-list — Decline cards issued in specified countries.
• Amount thresholds — Set minimum and maximum charge amounts to catch anomalous submissions.

Developer Tools

• Debug logging — A dedicated log file records API requests and responses, gated behind a settings toggle so it can be enabled temporarily without modifying code.
• Actions and filters — Developer hooks throughout the plugin for customising charge arguments, modifying subscription parameters, extending the transactions panel, and responding to payment events.

Requirements

• WordPress 5.8 or higher
• PHP 7.4 or higher
• Formidable Forms (Free or Pro)
• An active accept.blue merchant account

Use Cases

Membership registration with recurring monthly billing. Event registration with one-time payment. Tuition or service payment plans using installments. Donation forms with optional recurring giving. Any Formidable Forms workflow requiring credit card collection, subscription management, or deferred capture.