Reddit Is Locking Down Old Reddit and Its API — What Developers Need to Know

Reddit spent August 5 telling developers, in the politest possible language, that the era of building on Reddit's public API is closing. In a blog post titled "Modernizing Reddit's Infrastructure and Moderation Tools", the company said it plans "changes involving Old Reddit," will "gradually restrict new requests" for public API access, and intends to move third-party apps onto its Developer Platform. No date was attached to any of it. That combination — a clear direction and a deliberately absent timeline — is the whole story for anyone who maintains a bot, a scraper, or an app.

What Reddit actually said about Old Reddit

The operative sentence is short. "In order to protect our platform, business, and users from abusive scraping and spamming, over time we plan to make changes involving Old Reddit, the legacy desktop web experience for Reddit that was built 21 years ago," the company wrote. "In the short term, we will continue to require users to be logged in to access it and will work on migrating critical bots and moderator workflows to our modern stack."

Note what is missing: Reddit did not say it will shut old.reddit.com down. Asked what "changes" means, spokesperson Rosa Kim told Ars Technica the company is "exploring different options," adding: "We don't have a hard timeline right now, but we will work directly with the mods, developers, and communities that depend on our systems and make sure to keep everyone updated." CEO Steve Huffman was blunter about the range of outcomes. Reddit can "limit access, migrate important uses, or rebuild it on a modern tech stack, and I think we'll probably do all of the above," he wrote in a post quoted by The Verge.

The login wall is already up. Reddit announced in June that Old Reddit would require an account, and Ars Technica reports the requirement took effect in late July. A Reddit employee's stated reason at the time: "Old Reddit's logged-out experience is a significant source of abusive scraping and automated traffic on the platform."

The API change is the part with teeth

Buried under the moderation news is the item that actually breaks things. "To achieve this, we will continue supporting limited public API access, but we will gradually restrict new requests and require third-party apps to transition to and operate on Reddit's Developer Platform," Reddit wrote.

Parse that carefully. Existing access is not being revoked today; new requests are what get squeezed first. The migration target is Reddit's Developer Platform, where apps run inside Reddit's own environment rather than calling the API from your infrastructure. Kim told The Verge the shift will cover "all API apps except the ones we explicitly grant exceptions to," and that developers wanting to ship a third-party Reddit mobile app will still have to ask Reddit's permission — as they do now. Reddit says it has no set timeline here either, but promises "ample notice." To soften the move, the company says it has launched a $1 Million App Migration Program and is working directly with top app developers.

This extends rather than reverses the 2023 API pricing changes, whose most visible consequence was the shutdown of most third-party Reddit apps. The stated purpose then was stopping generative-AI companies from training on Reddit for free — the same rationale driving today's announcement. It sits alongside suits against Perplexity and Anthropic, blocking the Internet Archive, and restricting search crawlers without a data deal.

Automod's successor runs on an LLM

Reddit is also expanding Rules Hub, a moderation suite that decides enforcement with a language model instead of pattern matching. Rules Hub "uses LLMs to evaluate whether a post or comment matches the intent of a rule," Reddit says, which lets it "better handle nuance, natural language, and edge cases while preserving moderator control." Reddit says it has been testing with moderators from "over 700 communities," is opening it to all newly created communities now, and will make it widely available later this year. Kim told The Verge it is optional for new communities.

Reddit is explicit about where this leads: Rules Hub and related systems "can eventually replace many of the enforcement workflows that communities rely on from Automod," the blog post says. In a post reported by The Verge, Huffman called Automod "hard to learn, hard to maintain, and heavily dependent on brittle keyword matching, regex, and inherited configurations that only a few people on a mod team, if any, understand."

What to do if you build on Reddit

Get your API access request in now, not later. New requests are the first thing being restricted; existing grants are explicitly being maintained for the moment. Waiting is the strictly worse option. Assume unauthenticated HTML scraping of old.reddit.com is finished. The login requirement already landed, and Reddit named logged-out Old Reddit as its scraping problem. Anything parsing that surface anonymously is running on borrowed time. Price in the hosting change, not just an API swap. On the Developer Platform, Reddit hosts your code: "Your apps run and automatically scale on Reddit servers." That means giving up your own runtime, deploy pipeline, and any server-side dependency you cannot run there. Reddit has not published migration specifics or a technical deadline, so the honest task today is scoping which of your components could not live inside Reddit's environment at all. Treat regex-based Automod configs as legacy. If your tooling generates or maintains them, plan for intent-based rules.

Huffman's own framing, again via The Verge, was that "'Trust us' isn't good enough," and he pledged Reddit will not "remove major capabilities before there is a credible replacement." Developers who lived through 2023 will decide for themselves what that is worth.

Disclosure, given how much of the above draws on Ars Technica's reporting: Advance Publications, which owns Ars Technica's parent Condé Nast, is Reddit's largest shareholder.

Sources

Modernizing Reddit's Infrastructure and Moderation Tools — Reddit Inc. Reddit signals ominous upcoming "changes" for old.reddit.com — Ars Technica Reddit is introducing a new moderator: AI — The Verge Reddit for Developers — Reddit Developer Platform Reddit will require you to log in to use old.reddit.com — Ars Technica Exploring Reddit's third-party app environment 7 months after the APIcalypse — Ars Technica Reddit may block search if it can't reach an AI deal with Google, Microsoft — Ars Technica Reddit keeps weird DMCA lawsuit against web scraper alive despite Google's loss — Ars Technica Reddit sues Anthropic over AI scraping that retained users' deleted posts — Ars Technica Reddit blocks Internet Archive to end sneaky AI scraping — Ars Technica