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The <a href="https://bmlt.app" rel="nofollow ugc">Basic Meeting List Toolbox (BMLT)</a> is a powerful client/server system for locating NA meetings. 
The “root server” is a standalone Website, but “satellite servers” are set up to point to the “root.” This is a “satellite,” set up as a WordPress plugin. 
It is very easy to install and use. It has an administration panel that lets you choose a map center, designate the root, set up the map zoom, and whether older browsers are supported.

BMLT WordPress Satellite

Powerful and Effective

This is a "satellite" plugin for the Basic Meeting List Toolbox (BMLT).

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Crumb is a lightweight WordPress plugin that embeds the <a href="https://crumb.bmlt.app/" rel="nofollow ugc">Crumb Widget</a> meeting finder on any page or post using a simple shortcode.
Features:
<ul>
<li>List and map views with real-time search and filters</li>
<li>Meeting detail with directions and virtual meeting join link</li>
<li>Multi-language support</li>
<li>Shareable per-meeting URLs</li>
</ul>
<h4>Usage</h4>
Add the shortcode to any page or post:
<pre><code>[crumb]
</code></pre>
Override settings per page:
<pre><code>[crumb server="https://your-server/main_server" service_body="42" view="map" geolocation="true"]
</code></pre>
Shortcode attributes:
<ul>
<li><code>server</code> — BMLT server URL (overrides the value set in Settings → Crumb)</li>
<li><code>service_body</code> — Service body ID or comma-separated list; leave empty to show all meetings</li>
<li><code>view</code> — Default view when the widget loads: <code>list</code> (default), <code>map</code>, or <code>both</code> (map above list with no toggle); can also be overridden at runtime via the <code>?view=</code> query parameter</li>
<li><code>geolocation</code> — Enable or disable geolocation for this page: <code>true</code> or <code>false</code></li>
</ul>
<h4>Documentation</h4>
Full documentation at <a href="https://crumb.bmlt.app/" rel="nofollow ugc">crumb.bmlt.app</a>.
<h3>External services</h3>
This plugin relies on two external services. Both are part of the BMLT (Basic Meeting List Toolkit) ecosystem — free, open-source tools built for Narcotics Anonymous service bodies (https://bmlt.app).
1. Crumb Widget CDN
The widget JavaScript is loaded from a CDN operated by the BMLT project.
<ul>
<li>Service: cdn.aws.bmlt.app — delivers the Crumb Widget JavaScript file</li>
<li>Purpose: Provides the JavaScript component that renders the meeting list interface</li>
<li>Data sent: Standard HTTP request headers (IP address, browser user-agent, referring URL). No personal or meeting-search data is sent to the CDN.</li>
<li>When: The script is loaded once per page load on any page that contains the [crumb] shortcode</li>
<li>Privacy policy: https://crumb.bmlt.app/privacy.html</li>
<li>Terms of use / License: https://github.com/bmlt-enabled/crumb-widget/blob/main/LICENSE</li>
</ul>
2. BMLT Server (meeting data)
The widget fetches meeting data from a BMLT server whose URL you configure in Settings → Crumb. This server is typically operated by a regional NA service body and is not a service operated by the Crumb project.
<ul>
<li>Service: Your configured BMLT server (e.g. https://your-region.bmlt.app/main_server/)</li>
<li>Purpose: Retrieve NA meeting listings (names, times, locations, formats) to display in the widget</li>
<li>Data sent: Search query parameters (filters, keyword, selected formats). If geolocation is enabled and the user consents via a browser prompt, the user’s geographic coordinates are also sent to this server.</li>
<li>When: On each search or filter action within the widget</li>
<li>Privacy policy: Determined by the operator of your configured BMLT server. Learn more at https://bmlt.app.</li>
</ul>

Crumb

Embeds the Crumb Widget meeting finder on any page or post.

BMLT WordPress Satellite vs Crumb