microcosm: atproto building blocks
@microcosm.blue
Open-source APIs to kick-start your next app on ATProto.
Community-supported infrastructure ready for production.
relay.fire.hose.cam
constellation.microcosm.blue
slingshot.microcosm.blue
more:
https://microcosm.blue
https://tangled.org/@microcosm.blue
Community-supported infrastructure ready for production.
relay.fire.hose.cam
constellation.microcosm.blue
slingshot.microcosm.blue
more:
https://microcosm.blue
https://tangled.org/@microcosm.blue
Pinned
building on microcosm? have a question? you can always tag us bluesky, open an issue on tangled, or even join the microcosm discord where more folks in the community might be able to help ❤️
Service note: some microcosm APIs will be disrupted shortly for hardware reconfiguration
Unavailable:
🟠 spacedust.microcosm.blue
🟠 ufos-api.microcosm.blue
Available with stale data
🟡 constellation.microcosm.blue
NOT affected
🟢 slingshot.microcosm.blue
🟢 plc.wtf
🟢 both relays
🟢 all three jetstream
Unavailable:
🟠 spacedust.microcosm.blue
🟠 ufos-api.microcosm.blue
Available with stale data
🟡 constellation.microcosm.blue
NOT affected
🟢 slingshot.microcosm.blue
🟢 plc.wtf
🟢 both relays
🟢 all three jetstream
November 15, 2025 at 10:41 PM
Service note: some microcosm APIs will be disrupted shortly for hardware reconfiguration
Unavailable:
🟠 spacedust.microcosm.blue
🟠 ufos-api.microcosm.blue
Available with stale data
🟡 constellation.microcosm.blue
NOT affected
🟢 slingshot.microcosm.blue
🟢 plc.wtf
🟢 both relays
🟢 all three jetstream
Unavailable:
🟠 spacedust.microcosm.blue
🟠 ufos-api.microcosm.blue
Available with stale data
🟡 constellation.microcosm.blue
NOT affected
🟢 slingshot.microcosm.blue
🟢 plc.wtf
🟢 both relays
🟢 all three jetstream
building on microcosm? have a question? you can always tag us bluesky, open an issue on tangled, or even join the microcosm discord where more folks in the community might be able to help ❤️
November 14, 2025 at 8:21 PM
building on microcosm? have a question? you can always tag us bluesky, open an issue on tangled, or even join the microcosm discord where more folks in the community might be able to help ❤️
Reposted by microcosm: atproto building blocks
what's that? a second ip you can access constellation via?
November 13, 2025 at 8:31 PM
what's that? a second ip you can access constellation via?
Reposted by microcosm: atproto building blocks
every deer fork that inherits the custom verifiers feature uses constellation to verify 🥰
Using 3rd party Bluesky Clients (deer.aylac.top) you can make yourself a Trusted verifier, and verify accounts
November 14, 2025 at 3:53 PM
every deer fork that inherits the custom verifiers feature uses constellation to verify 🥰
Reposted by microcosm: atproto building blocks
it finished! it looks like it worked!!
you can browse it: qoomon.github.io/aws-s3-bucke...
need to actually test, someone want to try to restore from it?
you can browse it: qoomon.github.io/aws-s3-bucke...
need to actually test, someone want to try to restore from it?
Bucket Browser
qoomon.github.io
November 14, 2025 at 5:46 PM
it finished! it looks like it worked!!
you can browse it: qoomon.github.io/aws-s3-bucke...
need to actually test, someone want to try to restore from it?
you can browse it: qoomon.github.io/aws-s3-bucke...
need to actually test, someone want to try to restore from it?
Reposted by microcosm: atproto building blocks
constellation public rocksdb backup via tigrisFS in progress and looking promising!
once it's done, you should be able to mount the bucket locally, start constellation with `--restore-from-backup`, and have an instance with the full constellation.microcosm.blue backlink history up in an hour or two
once it's done, you should be able to mount the bucket locally, start constellation with `--restore-from-backup`, and have an instance with the full constellation.microcosm.blue backlink history up in an hour or two
![screenshot of a crop of a dashboard
constellation
3137 objects | 182.74 GB | stan[cropped]
Files
meta/
private/
shared_checksum/
hello
(it's a tigris t3 bucket dashboard)](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:hdhoaan3xa3jiuq4fg4mefid/bafkreia4fenin6xfy6t637dk5vemrakrwgglvmpjoptmofapamgwesno6e@jpeg)
November 14, 2025 at 3:04 PM
constellation public rocksdb backup via tigrisFS in progress and looking promising!
once it's done, you should be able to mount the bucket locally, start constellation with `--restore-from-backup`, and have an instance with the full constellation.microcosm.blue backlink history up in an hour or two
once it's done, you should be able to mount the bucket locally, start constellation with `--restore-from-backup`, and have an instance with the full constellation.microcosm.blue backlink history up in an hour or two
Reposted by microcosm: atproto building blocks
Seriously considering buying a stack of orange pi 5s and making a little hurricane tower of services to stick in a colo so I could operate a EU presence of @microcosm.blue and other community services.
Plz gib money so I can do more things that benefit people.
Plz gib money so I can do more things that benefit people.
November 13, 2025 at 11:25 PM
Seriously considering buying a stack of orange pi 5s and making a little hurricane tower of services to stick in a colo so I could operate a EU presence of @microcosm.blue and other community services.
Plz gib money so I can do more things that benefit people.
Plz gib money so I can do more things that benefit people.
Reposted by microcosm: atproto building blocks
yup that's officially 10 billion atproto backlinks
indexed by constellation
across every lexicon
that you can query
at constellation.microcosm.blue
indexed by constellation
across every lexicon
that you can query
at constellation.microcosm.blue
November 12, 2025 at 9:59 PM
yup that's officially 10 billion atproto backlinks
indexed by constellation
across every lexicon
that you can query
at constellation.microcosm.blue
indexed by constellation
across every lexicon
that you can query
at constellation.microcosm.blue
Reposted by microcosm: atproto building blocks
shout out constellation from @microcosm.blue !! made this basically trivial to build
Small update: new combined quotes / mentions panel
Previously just showed quotes of the Leaflet post; now *also* shows all Bluesky mentions, including the one linked on initial publish if it exists
Eventually we can expand this to include mentions in other Leaflet posts…and other atproto apps!
Previously just showed quotes of the Leaflet post; now *also* shows all Bluesky mentions, including the one linked on initial publish if it exists
Eventually we can expand this to include mentions in other Leaflet posts…and other atproto apps!
November 12, 2025 at 8:59 PM
shout out constellation from @microcosm.blue !! made this basically trivial to build
Reposted by microcosm: atproto building blocks
lots of exciting projects in Montreal this week weaving the ATProto ecosystem ✨ ( @germnetwork.com @stream.place @leaflet.pub @microcosm.blue @atprotocol.dev @smokesignal.events @cosmik.network @skylight.social )
November 5, 2025 at 3:16 PM
lots of exciting projects in Montreal this week weaving the ATProto ecosystem ✨ ( @germnetwork.com @stream.place @leaflet.pub @microcosm.blue @atprotocol.dev @smokesignal.events @cosmik.network @skylight.social )
there was a 9-min disruption to constellation, ufos-api, and spacedust this morning due to a datacentre (fig's house) power flicker.
by 8:30am EDT, auto-recovery worked for all services, which fully recovered on their own.
by 8:30am EDT, auto-recovery worked for all services, which fully recovered on their own.
November 5, 2025 at 2:39 PM
there was a 9-min disruption to constellation, ufos-api, and spacedust this morning due to a datacentre (fig's house) power flicker.
by 8:30am EDT, auto-recovery worked for all services, which fully recovered on their own.
by 8:30am EDT, auto-recovery worked for all services, which fully recovered on their own.
Reposted by microcosm: atproto building blocks
couldnt have done this without @microcosm.blue , constellation for the no-effort query of incoming bites, and also ufos for discovering and inferring the schema for net.wafrn.feed.bite to implement it without reading any docs
November 3, 2025 at 1:00 AM
couldnt have done this without @microcosm.blue , constellation for the no-effort query of incoming bites, and also ufos for discovering and inferring the schema for net.wafrn.feed.bite to implement it without reading any docs
Reposted by microcosm: atproto building blocks
summary of the small Montreal relay and jetstream incident this morning from a suspected networking issue:
- relay PDS connections dropped around 3am EST
- autoreconnect brought them back up around 8am EST
firehose event delivery was *delayed* during those five hours (no events were lost)
- relay PDS connections dropped around 3am EST
- autoreconnect brought them back up around 8am EST
firehose event delivery was *delayed* during those five hours (no events were lost)
follow-up: it's a weird one. relay logs are out of retention unfortunately so i'm not sure if i'll get to a full root-cause.
the server did not reboot, the relay container stayed up. dmesg on the host has nothing since oct 25
pds hosts connected dropped abruptly and there are some gaps in metrics
the server did not reboot, the relay container stayed up. dmesg on the host has nothing since oct 25
pds hosts connected dropped abruptly and there are some gaps in metrics
November 1, 2025 at 9:26 PM
summary of the small Montreal relay and jetstream incident this morning from a suspected networking issue:
- relay PDS connections dropped around 3am EST
- autoreconnect brought them back up around 8am EST
firehose event delivery was *delayed* during those five hours (no events were lost)
- relay PDS connections dropped around 3am EST
- autoreconnect brought them back up around 8am EST
firehose event delivery was *delayed* during those five hours (no events were lost)
Reposted by microcosm: atproto building blocks
I’m working on adding back links to @atexplore.social. I have a very rough version. Shout out to @microcosm.blue for making it easier to implement.
October 25, 2025 at 9:21 PM
I’m working on adding back links to @atexplore.social. I have a very rough version. Shout out to @microcosm.blue for making it easier to implement.
Reposted by microcosm: atproto building blocks
microcosm.blue/microcosm-rs Constellation, Spacedust, Slingshot, UFOs: atproto crates and services for microcosm
⭐️ 41
⭐️ 41
October 24, 2025 at 12:16 AM
microcosm.blue/microcosm-rs Constellation, Spacedust, Slingshot, UFOs: atproto crates and services for microcosm
⭐️ 41
⭐️ 41
Reposted by microcosm: atproto building blocks
Blacksky Algorithms == Hard Decentralization.
October 20, 2025 at 11:31 PM
Blacksky Algorithms == Hard Decentralization.
Reposted by microcosm: atproto building blocks
October 20, 2025 at 1:06 PM
Reposted by microcosm: atproto building blocks
microcosm.blue/microcosm-rs Constellation, Spacedust, Slingshot, UFOs: atproto crates and services for microcosm
⭐️ 36
⭐️ 36
October 19, 2025 at 3:43 PM
microcosm.blue/microcosm-rs Constellation, Spacedust, Slingshot, UFOs: atproto crates and services for microcosm
⭐️ 36
⭐️ 36
Reposted by microcosm: atproto building blocks
Allegedly 0.3.1 is out!
Fix: parameter passing when proxying
New mode: "wrap". Reverse-proxy to a PLC server. Eg: Allegedly can replace Caddy in front of Parakeet, and accept writes via PLC op forwarding. Auto TLS included.
New example code: poll PLC to detect unexpected changes to your DID:
Fix: parameter passing when proxying
New mode: "wrap". Reverse-proxy to a PLC server. Eg: Allegedly can replace Caddy in front of Parakeet, and accept writes via PLC op forwarding. Auto TLS included.
New example code: poll PLC to detect unexpected changes to your DID:
poll_upstream in allegedly - Rust
Poll an upstream PLC server for new ops
docs.rs
October 17, 2025 at 10:18 PM
Allegedly 0.3.1 is out!
Fix: parameter passing when proxying
New mode: "wrap". Reverse-proxy to a PLC server. Eg: Allegedly can replace Caddy in front of Parakeet, and accept writes via PLC op forwarding. Auto TLS included.
New example code: poll PLC to detect unexpected changes to your DID:
Fix: parameter passing when proxying
New mode: "wrap". Reverse-proxy to a PLC server. Eg: Allegedly can replace Caddy in front of Parakeet, and accept writes via PLC op forwarding. Auto TLS included.
New example code: poll PLC to detect unexpected changes to your DID:
Reposted by microcosm: atproto building blocks
a bluesky post can join two users by mentioning them, which shows up in the post record as links in the facets.
aka, posts can act as a many-to-many join between mentioned users
want to see who you’re mentioned together most often with?
aka, posts can act as a many-to-many join between mentioned users
want to see who you’re mentioned together most often with?
ok we are live! constellation can now count by many-to-many link records!!
motivating example was bluemoji, but it's already usable for some general traversal. you can ask,
> what issues on @tangled.org have a "good-first-issue" label?
check it:
motivating example was bluemoji, but it's already usable for some general traversal. you can ask,
> what issues on @tangled.org have a "good-first-issue" label?
check it:
Many to Many counts — Constellation
Counts of many-to-many sh.tangled.label.op:add[].key join records with links to at://did:plc:wshs7t2adsemcrrd4snkeqli/sh.tangled.label.definition/good-first-issue and a secondary target at subject
constellation.microcosm.blue
October 14, 2025 at 6:51 PM
a bluesky post can join two users by mentioning them, which shows up in the post record as links in the facets.
aka, posts can act as a many-to-many join between mentioned users
want to see who you’re mentioned together most often with?
aka, posts can act as a many-to-many join between mentioned users
want to see who you’re mentioned together most often with?
Reposted by microcosm: atproto building blocks
I only know this as I wrote a really shitty script to pull them so I can use @microcosm.blue slingshot to backfill feeds
Random fun statistic, since my relay/indexer have been running rather consistently for the last 4 days I've indexed 655,830 unique DIDs.
October 14, 2025 at 2:05 PM
I only know this as I wrote a really shitty script to pull them so I can use @microcosm.blue slingshot to backfill feeds
you can just ship things with microcosm
Correct! This week we built a fallback mechanism to query slingshot, constellation, and the PDS directly.
For now it is limited "read only". Soon enough you'll be able to interact with Link on blacksky.community
For now it is limited "read only". Soon enough you'll be able to interact with Link on blacksky.community
October 11, 2025 at 3:08 PM
you can just ship things with microcosm
Reposted by microcosm: atproto building blocks
Also, if you're an ATProto nerd/dev, there's now a new "Inspect Record" control button that let's you dive deeper into a record's data without ever leaving the Anisota experience! It's simple at the moment, but it will improve over time. See backlinks via @microcosm.blue!
Try it out: anisota.net
Try it out: anisota.net
October 9, 2025 at 6:45 PM
Also, if you're an ATProto nerd/dev, there's now a new "Inspect Record" control button that let's you dive deeper into a record's data without ever leaving the Anisota experience! It's simple at the moment, but it will improve over time. See backlinks via @microcosm.blue!
Try it out: anisota.net
Try it out: anisota.net
Reposted by microcosm: atproto building blocks
microcosm relays unaffected
🥝 relay.fire.hose.cam and jetstream.fire.hose.cam (montreal)
🥝 relay3.fr.hose.cam and jetstream2.fr.hose.cam (EU)
🍊https://jetstream1.us-east.fire.hose.cam *is* affected because it subscribes to bsky.network
🥝 relay.fire.hose.cam and jetstream.fire.hose.cam (montreal)
🥝 relay3.fr.hose.cam and jetstream2.fr.hose.cam (EU)
🍊https://jetstream1.us-east.fire.hose.cam *is* affected because it subscribes to bsky.network
seeing some network disruption impacting the bsky relay and other services
October 9, 2025 at 4:01 PM
microcosm relays unaffected
🥝 relay.fire.hose.cam and jetstream.fire.hose.cam (montreal)
🥝 relay3.fr.hose.cam and jetstream2.fr.hose.cam (EU)
🍊https://jetstream1.us-east.fire.hose.cam *is* affected because it subscribes to bsky.network
🥝 relay.fire.hose.cam and jetstream.fire.hose.cam (montreal)
🥝 relay3.fr.hose.cam and jetstream2.fr.hose.cam (EU)
🍊https://jetstream1.us-east.fire.hose.cam *is* affected because it subscribes to bsky.network
Reposted by microcosm: atproto building blocks
oh that’s 9 billion atproto backlinks indexed!
![This server has indexed 9,030,923,833 links between 1,713,360,256 targets and sources from 20,216,394 identities over 5 days.
in small text: (indexing new records in real time, backfill coming soon!)
the text above is cropped: […] the firehose, searching for anything that looks like a link.
Links are indexed by the target they point at, the collection the record came from, and the JSON path to the link in that record.
text below: You're welcome to use this public instance! Please do not[…]
the address bar shows “constellation.microcosm.blue”](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:hdhoaan3xa3jiuq4fg4mefid/bafkreih77nrcnlyjubnpvqggorvpz5rnbr6pc3zjec2lc5cu257krxccpm@jpeg)
October 9, 2025 at 3:07 AM
oh that’s 9 billion atproto backlinks indexed!