Description

Many themes and plugins load Google Maps without an API key, or without a setting to enter one. Google requires an API key for every Maps JavaScript API request, so these maps fail with “This page can’t load Google Maps correctly” or show a “For development purposes only” watermark.

API KEY for Google Maps fixes this without touching theme or plugin code. Enter your key once and the plugin adds it to every Google Maps JavaScript API script enqueued on the site.

Features

Adds your API key to Google Maps JavaScript API scripts enqueued by any theme or plugin.
Replaces an outdated or different key already present in the script URL with your own.
Adds the callback parameter Google has required since January 2023, fixing the JavaScript error Loading the Google Maps JavaScript API without a callback is not supported.
Works on the front end of your site and in the WordPress admin.
One-click Generate API Key button that opens the Google Cloud Console with the Maps APIs selected.
Quick link to a free tool that checks your site for Google Maps API key errors.
Lightweight: a single settings field and a tiny inline script. The saved key is removed when you delete the plugin.

How to use

Activate the plugin and go to Settings > Google API KEY.
Click Generate API Key (you must be signed in to your Google account), or paste a key you already have.
Click Save Changes. Your maps now load with your key.

Requirements and tips

The theme or plugin must load Google Maps the standard WordPress way (with wp_enqueue_script()). Scripts that are hard-coded into templates or injected by JavaScript can not be changed.
Browser API keys are visible in your page source. In the Google Cloud Console, restrict your key to your website’s domain (HTTP referrers) and to the Maps APIs you use.

For developers

When the Google Maps API has loaded, the plugin sets window.rgmkGoogleMapsCallback to true and triggers the jQuery event rgmkGoogleMapsLoad on document. Use the rgmk_google_map_callback_script filter to change the callback script.

The plugin was created by the GeoDirectory team.

Security

To report a security vulnerability, please review our vulnerability disclosure policy.

Screenshots

Installation

Minimum Requirements

WordPress 6.0 or greater
PHP version 7.4 or greater
MySQL version 8.0 or greater

Automatic installation

Automatic installation is the easiest option. To do an automatic install log in to your WordPress dashboard, navigate to the Plugins menu and click Add New.

In the search field type Google Maps API KEY and click Search Plugins. Once you’ve found the plugin you install it by simply clicking Install Now.

Manual installation

The manual installation method involves downloading the plugin and uploading it to your webserver via your favourite FTP application. The WordPress codex will tell you more here.

Updating

Automatic updates should seamlessly work. We always suggest you backup up your website before performing any automated update to avoid unforeseen problems.

FAQ

Ask and they shall be answered

Reviews

Solutions Redefined December 3, 2024

followed the easy instructions and checked on the mapfix.dev page and says it can't find api key or api calls but there is no help to fix it, so not sure what this plugin is supposed to do.

David William da Costa July 20, 2023

The plugin is simple and functional

hericj May 20, 2021

Después de buscar tantos tutoriales de como resolver mi problema, encuentre este plugin que por fin resolvió y genero mi API key sin problema

marinaw October 23, 2019

We've had an issue with a particular theme having something wrong with their theme settings, which resulted in the section for the API key missing. I installed this plugin and it did the job. Super easy and quick!

sanyo8 July 13, 2019

Great Plugin!

Webprom Design January 28, 2019

It works. Nice! Had to create a new project and to enable billing for it before the map showed. Thanks.

Read all 56 reviews

Contributors & Developers

“API KEY for Google Maps” is open source software. The following people have contributed to this plugin.

Translate “API KEY for Google Maps” into your language.

Interested in development?

Browse the code, check out the SVN repository, or subscribe to the development log by RSS.

Changelog

1.2.16 – 2026-09-30

Enhanced data sanitization and output escaping – CHANGED/SECURITY
Remove saved API key when the plugin is deleted – CHANGED

1.2.15 – 2026-04-09

WordPress v7.0 compatibility check – COMPATIBILITY

1.2.14 – 2025-12-03

WordPress v6.9 compatibility check – CHANGED

1.2.13 – 2024-11-28

WordPress v6.7 compatibility check – CHANGED

1.2.12 – 2024-08-21

WordPress v6.6 compatibility check – CHANGED

1.2.11 – 2024-04-11

WordPress v6.5 compatibility check – CHANGED

1.2.10 – 2023-12-06

WordPress v6.4 compatibility check – CHANGED

1.2.9 – 2023-08-10

WordPress v6.3 compatibility – CHANGED

1.2.8 – 2023-03-30

WordPress v6.2 compatibility – CHANGED

1.2.7 – 2023-02-02

Add .gitattributes file – ADDED
Generate Google API Key is no longer working – FIXED
Loading the Google Maps JavaScript API without a callback is not supported – CHANGED

1.2.3

Plugin version update – CHANGED

1.2.2

Compatibility checked with WordPress 6.0 – CHECKED
Now tries to add api key even if no key param is found – CHANGED
Now only users with “manage_options” ability can update the API key – SECURITY

1.2.1

Compatibility checked with WordPress 5.9

1.2.0

frame api generation broken (by Google iframe restrictions) changed to new window popup – FIXED
Updated Generate API KEY button to add access for all APIs – CHANGED

1.1.0

Added a Generate API KEY button for easier generation of API KEY – ADDED

1.0.0

Initial release

didn’t do anything apparently

Nice Plugin

Excelente

Works great!

Super

it works