AT Protocol
Decentralized social protocol in Developer tools
Recommended because user data and identity aren't locked into one app, so people can switch hosts or apps; critics say it's centralized in practice and weak on private data.
Recommended because user data and identity aren't locked into one app, so people can switch hosts or apps; critics say it's centralized in practice and weak on private data.
151 people gave an opinion
- recommend it
- 100
- criticize it
- 51
- approval share
- 66%
Recommended in 12 of 13 months
- November 2025: recommended
- December 2025: recommended
- January 2026: recommended
- February 2026: recommended
- March 2026: recommended
- April 2026: recommended
- May 2026: recommended
- June 2026: recommended
- July 2026: recommended
- August 2026: recommended
- September 2026: recommended
- October 2026: recommended
- November 2026: not recommended (month in progress)
Why it doesn’t carry the badge
- 100 people recommend itNeeds 10 or more, met.
- 1.96 recommenders for every criticNeeds 2 to 1 or better, not met.
- Recommended in 12 of 13 monthsNeeds 4 or more, met.
The same three rules apply to every product, and the badge can’t be bought. How the badge works
What people say about it
The reasons people give, with the number of comments that give each one. Open a reason to read what they said.
Why people recommend it
Each mark is one comment
Data not trapped in app silos
“The protocol is much more than data portability, it essentially turns the global social media system into a giant distributed system anyone can participate in at any point.”
Comment from 26 Jan 2026 in “Publishing on the ATmosphere” “This is more durable than just posting to a website in that the content is indexable, discoverable, and reusable by a growing ecosystem”
Comment from 26 Jan 2026 in “Publishing on the ATmosphere” “yes, this does solve the original stated problems — we can see in demos from the last section that data doesn't get trapped in apps”
Comment from 18 Jan 2026 in “A Social Filesystem” - Comment from 18 Feb 2026 in “Use Protocols, Not Services”
- Comment from 29 Apr 2026 in “Tangled – We need a federation of forges”
- Comment from 6 Sep 2026 in “Nitter and XCancel resume service after legal advice”
- Comment from 19 Jan 2026 in “A Social Filesystem”
Switch servers without losing anything
“AT proto's main innovation to me is decoupling the concerns of user identifier and data host at the protocol level”
Comment from 25 Aug 2026 in “Jabber/XMPP: 25 Years of Digital Independence” “I find at proto pretty cool, and I like the fact that I could actually migrate server without losing anything”
Comment from 17 Aug 2026 in “GitHub down again? no PR access” “In atproto, you can swap hosting (without changing apps), and you can create and use different apps”
Comment from 19 Jun 2026 in “There Are No Instances in ATProto” - Comment from 26 Jan 2026 in “Publishing on the ATmosphere”
- Comment from 6 Sep 2026 in “Nitter and XCancel resume service after legal advice”
Composable moderation and custom feeds
“The ability to deal with spam and disinformation seems so much radically better than anything else we've been able to work from.”
Comment from 30 Apr 2026 in “Tangled – We need a federation of forges” “betting on using open interoperation to allow people to keep finding systems, moderation, algorithms, tools, and apps that work”
Comment from 31 Mar 2026 in “Why I'm betting on ATProto (and why you should, too)” “The design of feeds (algos) and labellers (moderation) is unique and one of the best parts of the protocol.”
Comment from 31 Mar 2026 in “Why I'm betting on ATProto (and why you should, too)” - Comment from 27 Mar 2026 in “Colibri – chat platform built on the AT Protocol for communities big and small”
General distributed system beyond social
“The protocol is much more than data portability, it essentially turns the global social media system into a giant distributed system anyone can participate in at any point.”
Comment from 26 Jan 2026 in “Publishing on the ATmosphere” “AT is signed, works with any application-defined data structures, and lets you aggregate over millions of users in real time with subsecond end-to-end latency.”
Comment from 18 Jan 2026 in “A Social Filesystem” “That is most of what a firmware update channel needed, and it drastically reduced the problem space”
Comment from 5 Oct 2026 in “At-Protocol Based Encrypted Firmware Management Project” - Comment from 13 Feb 2026 in “Show HN: Civie. Anonymous civic questions. Open results. No yelling”
- Comment from 10 Mar 2026 in “Bluesky CEO Jay Graber is stepping down”
What people warn about
Each mark is one comment
Not meaningfully decentralized in practice
“Atproto is terrible at decentralization however, because of the model where data is stored decentrally, but accessed centrally”
Comment from 8 Mar 2026 in “Blacksky AppView” “makes us marginally less safe, due to its technical "centralization via confirmation" of the data it "broadcasts."”
Comment from 11 Mar 2026 in “Bluesky CEO Jay Graber is stepping down” “You just have to update the central PLC registry run by Blue Sky LLC to say which server you're hosted on now.”
Comment from 30 Apr 2026 in “Tangled – We need a federation of forges” - Comment from 21 Jun 2026 in “Who Owns Your ATProto Identity? Hint: It's Probably Not You”
- Comment from 30 Apr 2026 in “Tangled – We need a federation of forges”
Weak private data and access controls
“That proposal is insufficient. I was deeply involved in the private data discussions, built a PDS fork / prototype on ReBAC/SpiceDB”
Comment from 21 Jul 2026 in “Jack Dorsey launches Buzz to combine team chat, AI agents and Git hosting” “its a bare minimum (ACL) token acceptence of reality, I don't get the sense they actually believe in private data on social”
Comment from 29 Aug 2026 in “Graze Joins Flipboard” “AT Proto's fundamental issue is that the data is open and every dev thinks they should have access to every user's data.”
Comment from 18 May 2026 in “At Protocol for Agents” - Comment from 27 Mar 2026 in “Colibri – chat platform built on the AT Protocol for communities big and small”
- Comment from 14 Jul 2026 in “Death of the Status Update: Why 55% of Americans Stopped Posting on Social Media”
- Comment from 30 Oct 2026 in “The federated code forge”
Painful setup, half-working implementations
“Not really a fan, and the space is full of half working implementations like this post documents.”
Comment from 25 Jan 2026 in “I Was Right About ATProto Key Management” “I went through the process of setting up a did:web account myself this afternoon, and it was painful.”
Comment from 26 Jan 2026 in “I Was Right About ATProto Key Management”
What people said
40 of the 224 comments that mention it, newest first. Each links to the original comment.
“The permission primitives should be baked in from the start rather than the bolted on after spaces”
“AT Proto has a chance to really help here, so that governments and other orgs and publish structured content”
“That is most of what a firmware update channel needed, and it drastically reduced the problem space”
“being able to separate personal data from social platforms will make it far easier for people to mass migrate”
“It's the only thing I'm aware of that provides for actually forking a public social network.”
“still far less centralized than the status quo, where the data, the permissions, and every function on top all belong to one company”
“its a bare minimum (ACL) token acceptence of reality, I don't get the sense they actually believe in private data on social”
“AT proto's main innovation to me is decoupling the concerns of user identifier and data host at the protocol level”
“I find at proto pretty cool, and I like the fact that I could actually migrate server without losing anything”
“That proposal is insufficient. I was deeply involved in the private data discussions, built a PDS fork / prototype on ReBAC/SpiceDB”
“ATProto is trying to implement privacy on top of global public pub/sub which just obviously doesn't work.”
“it's not decentralized in any meaningful way, which is what a lot of ATProto proponents want you to believe”
“In atproto, you can swap hosting (without changing apps), and you can create and use different apps”
“AT Proto's fundamental issue is that the data is open and every dev thinks they should have access to every user's data.”
“The ability to deal with spam and disinformation seems so much radically better than anything else we've been able to work from.”
“You just have to update the central PLC registry run by Blue Sky LLC to say which server you're hosted on now.”
“If you consider people's worries of centralization happening with AT, that's not necessarily a good sign.”
“the AT protocol means that any individual forge can go down, but the data remains accessible from other AppViews”
“betting on using open interoperation to allow people to keep finding systems, moderation, algorithms, tools, and apps that work”
“The design of feeds (algos) and labellers (moderation) is unique and one of the best parts of the protocol.”
“the bandwidth problem is solved in a way that doesn't make it prohibitively expensive for alternative appview hosting”
“ATproto is just an experiment no one should build serious things on until there are proper access controls”
“ATProto actually has a very good moderation design, user choice, anyone can label, and composable.”
“makes us marginally less safe, due to its technical "centralization via confirmation" of the data it "broadcasts."”
“ATProto can be much more than social media tech, more like a plug-n-play distributed system”
“Atproto is terrible at decentralization however, because of the model where data is stored decentrally, but accessed centrally”
“you get the advantages of app-driven innovation without requiring data reliant on that feature to live in that application's silo”
“AT has people generally working on the next generation of shared infra for social and much more.”
“emerging technology like atproto that give us an opportunity to take back the reins from the oligarchs and corporations”
“This is more durable than just posting to a website in that the content is indexable, discoverable, and reusable by a growing ecosystem”
“The protocol is much more than data portability, it essentially turns the global social media system into a giant distributed system anyone can participate in at any point.”
“I went through the process of setting up a did:web account myself this afternoon, and it was painful.”
“the UX on migration is getting a lot better so it's reasonably approachable for average users”
“While I don't agree with a lot of decisions Bluesky and the broader ATProto community have made, I am very excited that progress towards real decentralization is happening”
“Not really a fan, and the space is full of half working implementations like this post documents.”
“I think that ATProto is going to win against other decentralized/'fediverse' protocols in the long run.”
“AT enables anyone motivated to spin up a whole new product that works with existing data”
“yes, this does solve the original stated problems — we can see in demos from the last section that data doesn't get trapped in apps”
“AT is signed, works with any application-defined data structures, and lets you aggregate over millions of users in real time with subsecond end-to-end latency.”
“Can protocol-as-substrate outlast platform incentives when VC returns require concentration not dispersion?”
Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.