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Free Plugin by openagenda v3.0.2

OpenAgenda

Display calendars from https://openagenda.com on your site.

OpenAgenda

The facts

Rating
5★ from 3
Active installs
300+
Price
Free
Last updated
11 May 2026
Added
Mar 2021
Requires WP
5.0
Tested up to
WP 6.9.7
Requires PHP
7.4.1
Downloads
10,180

Our analysis

AI-assisted

OpenAgenda is a WordPress plugin that allows you to embed calendars from OpenAgenda on your site. After activation, it creates a new post type called Calendars, where you can input the UID of the calendar you wish to display. Events are automatically populated, and you can control their placement using a shortcode.

Best for: This plugin is suitable for users who want to display event calendars from OpenAgenda on their WordPress site.

What it does well

  • Free to use from the WordPress.org directory
  • Automatically displays events from OpenAgenda calendars
  • Includes options for API key and embedded content
  • Allows for basic styling adjustments
  • Supports integration with third-party services

Where it falls short

  • Limited styling options depend on your theme
  • Requires an API key from OpenAgenda to function
  • No advanced features or customisation options mentioned

Verdict

OpenAgenda provides a straightforward way to integrate event calendars into WordPress. It is best for users who are already using OpenAgenda and need a simple embedding solution.

From the developer

openagenda's own description of OpenAgenda, lightly tidied.

Display calendars from https://openagenda.com on your site.

Basic usage

This WordPress plugin allows you to embed any calendar hosted on https://openagenda.com on your WordPress site.

Upon activation, the plugin creates a new post type named Calendars. Just create a new calendar, provide the UID of the calendar you wish to display in the calendar settings box, and that’s it !

You can leave the content area for this calendar empty, as it will be populated automatically with your events !

Your events are automatically inserted after your content. If you wish to control where your events will be listed, just use the shortcode [openagenda] in your content.

Settings

General settings can be found under the Calendar > Settings entry in the admin menu.

All data related to your API key or calendars can be found on https://openagenda.com.

The settings are divided into two tabs: General and Integrations.

General settings

The General settings page provides the following settings :

  • OpenAgenda API key : Your user API key. Providing your account API key is required for the plugin to work properly. It can be found in your account on https://openagenda.com
  • Allow for embedded content : If your events contain embedded content, tick this box to allow the corresponding HTML tags.
  • Load default stylesheets : The plugin provides very basic styling and depends heavily on your theme’s styles. Disable this to rely 100% on your theme styles.
  • Legacy templates : Templates have been updated in 3.0.0. Check this option to continue using legacy templates.
  • Cache duration : For performance reasons, basic requests to OpenAgenda are temporarily kept in cache. This settings controls the time to keep them cached, in seconds.
  • Default event image : Choose an image to use in case events do not have one.
  • Delete all calendar content on uninstall ? : controls whether you want to delete all your calendars on uninstall.
  • Delete all options on uninstall ? : controls whether you want to delete all your calendar settings on uninstall.
  • Allow OpenAgenda to collect usage stats ? : controls whether you want to send CMS used and site URL to OpenAgenda, for statistic purposes.

Integrations settings

The Integrations tab allows you to fine tune settings for various third party services the plugin uses.

OpenStreetmap integration settings :

Read the full description on the official page →

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