Moqbo – Lightweight Calendar
Moqbo is a WordPress event calendar plugin for managing categorized timed and all-day events. It stores events and categories in site-specific custom database tables, provides administration screens for managing that data, renders frontend calendars through shortcodes, and can expose selected read and write operations through an optional REST API.
Features
- Does one thing, but one thing well: Managing and displaying events in a calendar
- Built to be lightweight: Uses only events and categories
- Shortcodes: Display the full calendar or the next matching event date on the frontend via
[moqbo]or[moqbo-getdate]respectively - Optional REST API: Access and create events and categories for programmatic use
Requirements
- WordPress 6.5 or newer
- PHP 7.4 or newer
Quick Start
- Create a category under “Moqbo > Categories”.
- Create an event under “Moqbo > Add Event”.
- Add
[moqbo]to a post or page.
To display the next date for a matching event, use [moqbo-getdate name="Office Hours"].
API Usage
Moqbo registers WordPress REST API routes under /wp-json/moqbo/v1. Enable the API and the required endpoint methods in “Moqbo > Settings” before calling the general events or categories endpoints.
POST /events: Creates an event.GET /events/{slug}: Returns one event by slug.GET /events?start_date=YYYY-MM-DD&end_date=YYYY-MM-DD: Lists events within the date range. The range can span up to 366 days.POST /categories: Creates a category.GET /categories: Lists categories alphabetically.GET /categories/{slug}: Returns one category by slug.
The general API has no update or delete endpoints. All date and time values are interpreted in the WordPress site’s timezone. Event-list date ranges are inclusive: an event is returned when it overlaps any part of the requested range.
Authentication
Enabled GET endpoints are public by default. When Require token authentication for GET requests is enabled, send the configured token as a bearer token. Enabled POST endpoints always require that token, regardless of the GET authentication setting.
Authorization: Bearer 0123456789abcdef0123456789abcdef01234567
Tokens must be 32 to 255 characters and should only be sent over HTTPS. Set Content-Type: application/json for JSON POST bodies.
Categories
Create a category before creating events that reference it:
POST /wp-json/moqbo/v1/categories
Content-Type: application/json
Authorization: Bearer 0123456789abcdef0123456789abcdef01234567
{
"name": "Meetings",
"slug": "meetings",
"color": "#2271b1"
}
On success, the endpoint returns 201 Created and a Location header pointing to /wp-json/moqbo/v1/categories/meetings:
{
"name": "Meetings",
"slug": "meetings",
"color": "#2271b1",
"event_count": 0
}
The GET /wp-json/moqbo/v1/categories endpoint returns an array of category objects with the same fields. Category names and slugs must be unique; color must be a six-digit hex value such as #2271b1.
Events
Create an event with an existing category_slug:
POST /wp-json/moqbo/v1/events
Content-Type: application/json
Authorization: Bearer 0123456789abcdef0123456789abcdef01234567
{
"name": "Team Meeting",
"slug": "team-meeting",
"location": "Conference Room",
"category_slug": "meetings",
"description": "Weekly planning meeting.",
"start_at": "2026-01-15 09:00:00",
"end_at": "2026-01-15 10:00:00",
"all_day": false
}
On success, the endpoint returns 201 Created and a Location header pointing to /wp-json/moqbo/v1/events/team-meeting:
{
"name": "Team Meeting",
"slug": "team-meeting",
"location": "Conference Room",
"category_slug": "meetings",
"description": "Weekly planning meeting.",
"start_at": "2026-01-15 09:00:00",
"end_at": "2026-01-15 10:00:00",
"all_day": false
}
Use GET /wp-json/moqbo/v1/events?start_date=2026-01-01&end_date=2026-01-31 to retrieve matching events. It returns a JSON array of event objects in start-time order; GET /wp-json/moqbo/v1/events/team-meeting returns one object using the same representation.
All event fields in the request body are required. start_at and end_at must use YYYY-MM-DD HH:MM:SS. Timed events must end after they start. All-day events must start and end at midnight, and their end may equal their start.
Errors
WordPress REST errors are JSON objects. For example, an invalid or missing bearer token returns 401 Unauthorized:
{
"code": "moqbo_api_invalid_token",
"message": "A valid Moqbo API token is required.",
"data": {
"status": 401
}
}
Disabled routes return 403, malformed requests and validation failures return 400, and requests for unknown event or category slugs return 404.
Development
Frontend development requires Node.js 18 or newer and npm:
npm ci
npm run build
Additional commands:
npm run format
npm run zip
The ZIP command requires WP-CLI with dist-archive. Test changes on a clean WordPress installation with WP_DEBUG enabled and run the official Plugin Check to find any potential issues.
License
Moqbo is licensed under the GNU General Public License v3.0 or later. Third-party notices are available in third-party-notices.txt.