Diagnostics for atproto PDS hosts, DIDs, and handles: https://debug.hose.cam

A public mirror for the whole atmosphere

Server tools to backfill, tail, mirror, and verify PLC logs

lightweight com.atproto.sync.listReposByCollection

Constellation, Spacedust, Slingshot, UFOs: atproto crates and services for microcosm

STreaming ARchive format: simpler, stricter, smaller than CARs for a subset of use-cases.