I’ll have a REST API if you want. You can ask it to only send IDs or the full events.

Want to get the events by ID? Just use an ids filter on the same endpoint, no one has a use for 2 endpoints doing 1 thing.

But no SSE. Browsers put a limit on the number of parallel HTTP requests and SSE may exceed that as they stay open for a long time

Also, NFDB will support cursors on all interfaces so you can paginate without the pain. Forget created_at based pagination, which can be very unreliable.

If you want to know how to do it, calculate the lowest created_at for each relay, and use the highest one as the next one to use. Or a relay with a very old event will say “nope nothing left”