Building a gallery API endpoint with the WordPress REST API
register_rest_route, permission_callback, and arg sanitisation — the three things a custom REST endpoint must get right. A working gallery endpoint, built properly.
May 25, 2026
Product
Solutions
Explore everything FotoGrids can do
Design & Customization
Style every gallery to your brand
No-Code Workflow
Drag, drop, publish. No code
SEO & Performance
Rank higher. Load lighter
Image Protection & Security
Your photos stay your photos
Engagement & Analytics
Track. Engage. Grow
Resources
Gutenberg
Native block for the WordPress editor
Elementor
Dedicated widget with full control
Divi
Custom module for any Divi layout
Bricks
Fully customizable native element
For developers
REST API
Read, write, and automate galleries
Hooks & Filters
Customize behavior with WP hooks
Custom CSS/JS
Bring your own styles and scripts
White Label
Show clients your brand, not ours
Solutions
Built for
Hooks, REST API, and full control
Showcase your work beautifully
Collaborate, deliver, and scale client work
Beautiful galleries without writing code
Turn visitors into paying customers
FotoGrids for Online Shops
Product galleries built to sell
Use cases
Gutenberg
Native block for the WordPress editor
Elementor
Dedicated widget with full control
Divi
Custom module for any Divi layout
Bricks
Fully customizable native element
