Title: Cal ID
Author: Cal ID
Published: <strong>July 24, 2026</strong>
Last modified: July 24, 2026

---

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# Cal ID

 By [Cal ID](https://profiles.wordpress.org/calid/)

[Download](https://downloads.wordpress.org/plugin/cal-id.1.0.0.zip)

 * [Details](https://wordpress.org/plugins/cal-id/#description)
 * [Reviews](https://wordpress.org/plugins/cal-id/#reviews)
 *  [Installation](https://wordpress.org/plugins/cal-id/#installation)
 * [Development](https://wordpress.org/plugins/cal-id/#developers)

 [Support](https://wordpress.org/support/plugin/cal-id/)

## Description

Cal ID is a online appointment scheduling tool that handles confirmations, reminders,
CRM sync, and payments automatically after every booking.

 * a WordPress block
 * a shortcode: `[cal_id_embed]`

Supported layouts:

 * inline
 * modal
 * floating

#### External services

This plugin embeds event pages hosted by Cal ID. When an embed is rendered, the 
front end loads the Cal ID embed script from `https://cal.id/embed-link/embed.js`
and displays the configured Cal ID event from `https://cal.id/`.

The event path and optional display settings such as theme, layout, brand color,
button text, and UTM parameters are passed to Cal ID so the booking embed can be
displayed. If logged-in prefill is enabled, the plugin fetches the current logged-
in user’s name and email from a protected local WordPress REST endpoint when the
embed loads, then sends that data to Cal ID for prefill. The user details are not
printed into the page HTML.

Use of the Cal ID service is subject to Cal ID’s [Terms of Use](https://cal.id/termofuse)
and [Privacy Policy](https://cal.id/privacy-policy).

### Usage

Block:

 1. Insert `Cal ID`
 2. Enter a Cal ID event path such as:
 3.  * `owner/event`
     * `team/owner/event`
     * `https://cal.id/owner/event`

Shortcode:

    ```
    [cal_id_embed event_path="owner/event" layout="inline"]
    ```

Modal example:

    ```
    [cal_id_embed event_path="owner/event" layout="modal" button_text="Book now"]
    ```

Floating example:

    ```
    [cal_id_embed event_path="owner/event" layout="floating"]
    ```

## Screenshots

[⌊Inline booking embed in the block editor.⌉⌊Inline booking embed in the block editor
.⌉[

Inline booking embed in the block editor.

[⌊Inline booking embed in live page.⌉⌊Inline booking embed in live page.⌉[

Inline booking embed in live page.

[⌊Floating booking embed in live page.⌉⌊Floating booking embed in live page.⌉[

Floating booking embed in live page.

## Blocks

This plugin provides 1 block.

 *   Cal ID Embed hosted Cal ID event pages.

## Installation

 1. Install using the WordPress built-in Plugin installer or Upload the plugin files
    to `/wp-content/plugins/cal-id/`
 2. Activate the plugin in WordPress
 3. Add the `Cal ID` block or place the shortcode in your content

## FAQ

### What kind of Cal link should I enter?

Use a hosted Cal ID link or path such as `owner/event`, `team/owner/event`, or a
full `https://cal.id/...` URL.

### Can I choose how the booking page appears?

Yes. You can choose inline, modal, or floating display modes.

### Can I use this on the same page as other content blocks?

Yes. The embed can sit alongside other blocks, images, text, and shortcodes on the
same page.

### How do I change the look of the embed?

You can use the block settings for layout, theme, brand color, button text, height,
and UTM parameters.

### What should I check if the embed does not appear?

Make sure the event path points to a hosted Cal ID page on `https://cal.id/` and
that the layout is set correctly.

### Does prefill happen automatically?

Only when you turn prefill on. In that case, the plugin fetches the current logged-
in user’s name and email when the embed loads and passes them to Cal ID for prefill.

## Reviews

There are no reviews for this plugin.

## Contributors & Developers

“Cal ID” is open source software. The following people have contributed to this 
plugin.

Contributors

 *   [ Cal ID ](https://profiles.wordpress.org/calid/)

[Translate “Cal ID” into your language.](https://translate.wordpress.org/projects/wp-plugins/cal-id)

### Interested in development?

[Browse the code](https://plugins.trac.wordpress.org/browser/cal-id/), check out
the [SVN repository](https://plugins.svn.wordpress.org/cal-id/), or subscribe to
the [development log](https://plugins.trac.wordpress.org/log/cal-id/) by [RSS](https://plugins.trac.wordpress.org/log/cal-id/?limit=100&mode=stop_on_copy&format=rss).

## Changelog

#### 1.0.0

 * Initial release
 * Dynamic block and shortcode support
 * Shared sanitization and render layer
 * REST prefill endpoint
 * Frontend runtime and editor preview
 * Security and integration tests

## Meta

 *  Version **1.0.0**
 *  Last updated **1 day ago**
 *  Active installations **Fewer than 10**
 *  WordPress version ** 6.3 or higher **
 *  Tested up to **7.0.2**
 *  PHP version ** 7.4 or higher **
 * Tags
 * [appointment](https://wordpress.org/plugins/tags/appointment/)[booking calendar](https://wordpress.org/plugins/tags/booking-calendar/)
   [meeting](https://wordpress.org/plugins/tags/meeting/)[scheduling](https://wordpress.org/plugins/tags/scheduling/)
 *  [Advanced View](https://wordpress.org/plugins/cal-id/advanced/)

## Ratings

No reviews have been submitted yet.

[Your review](https://wordpress.org/support/plugin/cal-id/reviews/#new-post)

[See all reviews](https://wordpress.org/support/plugin/cal-id/reviews/)

## Contributors

 *   [ Cal ID ](https://profiles.wordpress.org/calid/)

## Support

Got something to say? Need help?

 [View support forum](https://wordpress.org/support/plugin/cal-id/)