I cerated ATProto Dashboard. It can see 3rd party Collection onATProto.
URL: https://atpdashboard.usounds.work/

Features

In ATProto, you can create custom collections (lexicons) like this "WhiteWind." However, there has been no way to find out what collections exist. While there are some sites that monitor lexicons managed by Bluesky, there seem to be fewer tools for discovering custom collections. That’s why I decided to build this dashboard.

Collection tracking began on January 17, 2025, so events prior to that date have not been collected.

How to Use

Settings (Added on January 21th, 2025)

Exclude collections with transaction key

Collections that embed Transaction IDs (TIDs) are excluded from the aggregation target. I intentionally exclude known collections, and any occurrences outside the known ones will need to be addressed as they arise.

Headline

The numbers at the top represent the following:

Total Collections

The total number of unique collections collected so far. If there are collections created within the last 72 hours, display their count separately.

Total Sub Name Spaces

For example, in my service, there are two collections: uk.skublur.post and uk.skublur.preference. If the namespace up to uk.skublur is the same, it is considered part of the same service. However, generic services like io.github or app.netlify may be misidentified, resulting in a slightly lower count than the actual number of services.

Total Users

This counts the DIDs of users who created records in custom collections. Note: This does not represent the creators of the services, as there is currently no way to identify them.

Cursor Delay in Minutes

This metric is unrelated to collections. Since the backend uses Jetstream, this indicates how many minutes the Jetstream reception is delayed. If there’s a delay of around a day, please contact the author.

Hidden Feature

Tap the numbers in the headline to refresh the dashboard.

Graph

Data is aggregated and displayed in 24-hour units. Since the 24-hour period is calculated in real time, the shape may change slightly each time you access it.

Daily Collections

Displays collections that had activity and newly created collections.

Daily Users

Displays users who triggered events, including active users and new users.

Collection

Displays a list of collections.

COLLECTION

The name of the received collection. Collections created within the last 72 hours will have a green badge.

EVENTS

The number of Create events that occurred for that collection.

FIRST INDEXED

The earliest record created in that collection (after January 17, 2025).

LAST INDEXED

The most recent record created in that collection.

Sorting

Click the column headers (e.g., COLLECTION, EVENTS) to sort by that column. For example, sorting by FIRST INDEXED in descending order can help you find new services more easily. However, please note that this system only tracks events starting from January 17, so earlier records may be misidentified as the first.