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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%
Each figure is 2 people. RecommendsCriticizes

Recommended in 12 of 13 months

  1. November 2025: recommended
  2. December 2025: recommended
  3. January 2026: recommended
  4. February 2026: recommended
  5. March 2026: recommended
  6. April 2026: recommended
  7. May 2026: recommended
  8. June 2026: recommended
  9. July 2026: recommended
  10. August 2026: recommended
  11. September 2026: recommended
  12. October 2026: recommended
  13. 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”
  • 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”
  • 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)”
  • 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”

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”
  • 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”
  • 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”

CriticizesComment from 30 Oct 2026 in “The federated code forge”

“AT Proto has a chance to really help here, so that governments and other orgs and publish structured content”

RecommendsComment from 20 Oct 2026 in “Facebook Pages require paid subscription to post more than two links per month”

“That is most of what a firmware update channel needed, and it drastically reduced the problem space”

RecommendsComment from 5 Oct 2026 in “At-Protocol Based Encrypted Firmware Management Project”

“being able to separate personal data from social platforms will make it far easier for people to mass migrate”

RecommendsComment from 6 Sep 2026 in “Nitter and XCancel resume service after legal advice”

“It's the only thing I'm aware of that provides for actually forking a public social network.”

RecommendsComment from 6 Sep 2026 in “Nitter and XCancel resume service after legal advice”

“still far less centralized than the status quo, where the data, the permissions, and every function on top all belong to one company”

MixedComment from 4 Sep 2026 in “Getting Started with AT Protocol”

“its a bare minimum (ACL) token acceptence of reality, I don't get the sense they actually believe in private data on social”

CriticizesComment from 29 Aug 2026 in “Graze Joins Flipboard”

“AT proto's main innovation to me is decoupling the concerns of user identifier and data host at the protocol level”

RecommendsComment 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”

RecommendsComment from 17 Aug 2026 in “GitHub down again? no PR access”

“That proposal is insufficient. I was deeply involved in the private data discussions, built a PDS fork / prototype on ReBAC/SpiceDB”

CriticizesComment from 21 Jul 2026 in “Jack Dorsey launches Buzz to combine team chat, AI agents and Git hosting”

“ATProto is trying to implement privacy on top of global public pub/sub which just obviously doesn't work.”

CriticizesComment from 14 Jul 2026 in “Death of the Status Update: Why 55% of Americans Stopped Posting on Social Media”

“it's not decentralized in any meaningful way, which is what a lot of ATProto proponents want you to believe”

CriticizesComment from 21 Jun 2026 in “Who Owns Your ATProto Identity? Hint: It's Probably Not You”

“In atproto, you can swap hosting (without changing apps), and you can create and use different apps”

RecommendsComment from 19 Jun 2026 in “There Are No Instances in ATProto”

“AT Proto's fundamental issue is that the data is open and every dev thinks they should have access to every user's data.”

CriticizesComment from 18 May 2026 in “At Protocol for Agents”

“The ability to deal with spam and disinformation seems so much radically better than anything else we've been able to work from.”

RecommendsComment from 30 Apr 2026 in “Tangled – We need a federation of forges”

“You just have to update the central PLC registry run by Blue Sky LLC to say which server you're hosted on now.”

CriticizesComment from 30 Apr 2026 in “Tangled – We need a federation of forges”

“If you consider people's worries of centralization happening with AT, that's not necessarily a good sign.”

CriticizesComment from 30 Apr 2026 in “Tangled – We need a federation of forges”

“the AT protocol means that any individual forge can go down, but the data remains accessible from other AppViews”

RecommendsComment from 29 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”

RecommendsComment 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.”

RecommendsComment from 31 Mar 2026 in “Why I'm betting on ATProto (and why you should, too)”

“the bandwidth problem is solved in a way that doesn't make it prohibitively expensive for alternative appview hosting”

MixedComment from 30 Mar 2026 in “About the Atmosphere”

“ATproto is just an experiment no one should build serious things on until there are proper access controls”

CriticizesComment from 27 Mar 2026 in “Colibri – chat platform built on the AT Protocol for communities big and small”

“ATProto actually has a very good moderation design, user choice, anyone can label, and composable.”

RecommendsComment from 27 Mar 2026 in “Colibri – chat platform built on the AT Protocol for communities big and small”

“makes us marginally less safe, due to its technical "centralization via confirmation" of the data it "broadcasts."”

CriticizesComment from 11 Mar 2026 in “Bluesky CEO Jay Graber is stepping down”

“ATProto can be much more than social media tech, more like a plug-n-play distributed system”

RecommendsComment from 10 Mar 2026 in “Bluesky CEO Jay Graber is stepping down”

“Atproto is terrible at decentralization however, because of the model where data is stored decentrally, but accessed centrally”

MixedComment from 8 Mar 2026 in “Blacksky AppView”

“you get the advantages of app-driven innovation without requiring data reliant on that feature to live in that application's silo”

RecommendsComment from 18 Feb 2026 in “Use Protocols, Not Services”

“AT has people generally working on the next generation of shared infra for social and much more.”

RecommendsComment from 13 Feb 2026 in “Show HN: Civie. Anonymous civic questions. Open results. No yelling”

“emerging technology like atproto that give us an opportunity to take back the reins from the oligarchs and corporations”

RecommendsComment from 2 Feb 2026 in “Ask HN: What are some examples of non-evil tech that makes you optimistic?”

“This is more durable than just posting to a website in that the content is indexable, discoverable, and reusable by a growing ecosystem”

RecommendsComment from 26 Jan 2026 in “Publishing on the ATmosphere”

“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.”

RecommendsComment from 26 Jan 2026 in “Publishing on the ATmosphere”

“I went through the process of setting up a did:web account myself this afternoon, and it was painful.”

MixedComment from 26 Jan 2026 in “I Was Right About ATProto Key Management”

“the UX on migration is getting a lot better so it's reasonably approachable for average users”

RecommendsComment from 26 Jan 2026 in “Publishing on the ATmosphere”

“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”

MixedComment from 25 Jan 2026 in “I Was Right About ATProto Key Management”

“Not really a fan, and the space is full of half working implementations like this post documents.”

MixedComment from 25 Jan 2026 in “I Was Right About ATProto Key Management”

“I think that ATProto is going to win against other decentralized/'fediverse' protocols in the long run.”

RecommendsComment from 25 Jan 2026 in “Publishing on the ATmosphere”

“AT enables anyone motivated to spin up a whole new product that works with existing data”

RecommendsComment from 19 Jan 2026 in “A Social Filesystem”

“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”

RecommendsComment from 18 Jan 2026 in “A Social Filesystem”

“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.”

RecommendsComment from 18 Jan 2026 in “A Social Filesystem”

“Can protocol-as-substrate outlast platform incentives when VC returns require concentration not dispersion?”

MixedComment from 10 Dec 2025 in “Uncommon Thinkers: Bluesky CEO Jay Graber seeding a decentralized digital world”

Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.