PHP · WORDPRESS & NONPROFIT CRM

wp-givebutter-api — WordPress & PHP Integration Library for Givebutter Fundraising

wp-givebutter-api is a full-featured PHP client for the Givebutter API that synchronizes nonprofit campaigns, recurring donations, tickets, and donor contacts with WordPress. It includes verified webhook handlers and transient caching for embedding live fundraising progress bars.

$ composer require bhubbard/wp-givebutter-api

GitHub ↗

Endpoints Covered Campaigns / Transactions / Contacts

Webhook Security HMAC Signature Check

Caching WP Transient Layer

PHP Compatibility PHP 8.0 – 8.4

Interactive Givebutter Campaign Thermometer & Webhook Event Inspector Campaign Code & Donation Event Payload Givebutter API v1 Operation

Deterministic Execution Output & Telemetry STATUS: READY // 0 ERRORS

PHP (WP Givebutter API Client)

$givebutter = new \BHubbard\Givebutter\Client( get_option( 'givebutter_api_key' ) );

$campaign = $givebutter->campaigns()->get( 'annual-gala-2026' );
$percent  = round( ( $campaign['raised'] / max( $campaign['goal'], 1 ) ) * 100, 1 );

$transactions = $givebutter->transactions()->list( [
    'campaign_id' => $campaign['id'],
    'per_page'    => 10,
] );

Production Engineering Specifications

Repository:    https://github.com/bhubbard/wp-givebutter-api
Live Studio:   https://code.brandonhubbard.com/wp-givebutter-api/
Portal:        https://code.brandonhubbard.com/
Install:       composer require bhubbard/wp-givebutter-api
Design System: Brandon Hubbard Swiss Modernist (#0A0A0C / 1px Exposed Structural Grid)