Reddit's API Returns 403 From GitHub Actions: A Customer's Report and What We Verified

A redditapis.com customer reported on 2026-08-04 that a direct call to Reddit's own API, www.reddit.com/api/info.json, returned HTTP 403 when run from a GitHub Actions runner, with no official Reddit OAuth credentials configured either. That is the customer's own firsthand report from their pipeline, not a run we reproduced ourselves inside GitHub Actions (GitHub Actions is not something we operate against for a test like this). What we did verify independently, from our own research environment, lines up with it closely: a direct call to the same Reddit endpoint returned the identical 403, an unauthenticated OAuth token request returned 401, and GitHub's own documentation confirms that GitHub-hosted Linux and Windows runners are Azure virtual machines, sitting in the same class of datacenter IP space that Reddit's own developer community has reported getting blocked from since at least 2023.

Not affiliated with Reddit Inc. redditapis.com is an independent, third-party REST layer built on top of Reddit's official API.

Last updated 2026-08-10.

TL;DR: A customer reported Reddit's own API returning 403 from a GitHub Actions runner, with no OAuth app in place. We could not reproduce that exact run (GitHub Actions is not part of our own testing setup), but a direct, unauthenticated call to the same Reddit endpoint from our own environment also came back 403, and the mechanism checks out: GitHub-hosted runners are Azure VMs, and Reddit's community has documented blocking AWS and Azure IP ranges since December 2023. Registering a Reddit app does not sidestep the IP-level question, and Reddit's own admin team posted on 2026-08-05 that API access is getting more restricted, not less, with a September 30, 2026 deadline for every app to register. Tested from the same environment: api.redditapis.com responded normally where Reddit's own site did not. Try it with $0.50 in free credit at signup, no card required.

• A customer reported Reddit's own API returning 403 from a GitHub Actions runner on 2026-08-04, with no OAuth app configured
• We verified the general pattern independently, not that exact run: a direct call to Reddit from our own environment also returned 403
• GitHub-hosted Actions runners are Azure virtual machines, per GitHub's own docs, the same IP space Reddit's community has reported blocking since 2023
• Reddit's own August 2026 admin post confirms API access is tightening further, with a hard deadline for app registration

What the customer reported

On 2026-08-04, a paying redditapis.com customer described a specific failure in their build pipeline: a GitHub Actions workflow calling Reddit's own public endpoint, www.reddit.com/api/info.json, to pull basic post metadata as part of a scheduled job. The call returned HTTP 403. The customer had no official Reddit developer app registered, no OAuth client ID or secret, so there was no authentication layer to debug, no token to refresh, no scope to widen. The request simply came back forbidden.

That detail matters for how to read the rest of this post. We are reporting what the customer told us, with the date they gave us, because it is a real, specific, first-hand data point from someone running a real pipeline. We have not gone into a GitHub Actions runner ourselves and reproduced www.reddit.com/api/info.json returning 403 in that exact environment, and we are not going to claim we did. What follows is independent research and our own live testing from a different automated environment, offered as corroboration, not as proof of the customer's specific run.

What we could verify ourselves, and what we could not

We could not spin up a GitHub Actions workflow and watch it fail live; that is simply not part of how we test things. What we could do, and did, while researching this post: call the exact same Reddit endpoint the customer named, unauthenticated, from our own research environment.

curl -s -o /dev/null -w "%{http_code}" "https://www.reddit.com/api/info.json?q=test"

That returned 403, the identical status code the customer reported, on the day we ran it. We also tested the unauthenticated OAuth path, in case a client_credentials grant without a registered app quietly worked around the block:

curl -s -X POST "https://www.reddit.com/api/v1/access_token" -d "grant_type=client_credentials"

That returned 401 Unauthorized, with the body {"message": "Unauthorized", "error": 401}, confirming there is no unregistered fallback path either. Two different Reddit endpoints, two different failure codes, both consistent with what the customer described: blocked at the network layer on the first call, and no anonymous credential shortcut on the second.

We do not stop at Reddit's own endpoints either. For comparison, the same session tested api.redditapis.com with a deliberately invalid key, covered in full in the alternative section below; the short version is that it responded with an authorization error, not a network-level refusal, which is the distinction the rest of this post turns on.

We do not run our tests from inside a GitHub Actions runner specifically, so we cannot say our environment's IP range is identical to the one the customer's workflow used. What we can say is that the 403 is not something we had to go looking for. It showed up on the first unauthenticated call to a datacenter-adjacent research environment, matching the customer's report closely enough that the mechanism explained in the next section, IP-based filtering of cloud and datacenter traffic, reads as the likely cause rather than a coincidence.

Why this happens: Reddit has been blocking cloud and datacenter IPs for years

This is not a new phenomenon, and it is not specific to GitHub Actions. A Hacker News thread from December 2023, titled "Tell HN: Reddit is blocking access from AWS IP addresses," documents a developer getting a 403 from an AWS EC2 instance with the message "Your request has been blocked due to a network policy," directing them to log in, register developer credentials, or file a support ticket. A separate commenter on that same thread reported the identical block from Microsoft Azure, noting that old.reddit.com still worked while the newer JSON endpoint did not, part of the same slow squeeze on Reddit's free JSON endpoint that developers have tracked for years. One commenter defended the policy outright: "AWS ips have no legitimate reason to access the actual site." Another pushed back that AWS serves plenty of legitimate use cases, including people routing around regional Reddit restrictions. Reddit itself did not weigh in on the thread either way.

Two years later, the pattern had not gone away. A December 2025 developer post describes trying "various cloud-based scraping tools, VPS scripts, and even rotating/residential proxies" for a personal Reddit tool: "Reddit blocks server IPs. Like, aggressively. My VPS got blocked within 5 minutes of running a simple scraper. Tried rotating proxies. Tried residential IPs. Reddit kept catching on." The same author, in a companion post about a related project, was specific about the mechanism as they understood it: "Reddit notices tons of pings arriving from identical AWS or Vercel IP zones, then shuts them down." Their fix, in both posts, was the same one many builders land on: move the Reddit call off cloud infrastructure entirely and run it from a residential IP instead, the same tradeoff our own residential proxy landscape guide covers for scrapers. That fix sidesteps the problem for a personal tool but is not an option for a scheduled CI job that has to run unattended on someone else's infrastructure.

The throughline across all of it: this is not a rule that inspects request headers for "GitHub Actions" or "AWS Lambda" by name. It is IP-reputation and ASN-based filtering, the same class of defense described generically by cloud-security writeups: datacenter IP ranges get flagged before a request even reaches an application layer, because a large share of traceable datacenter traffic is automated. GitHub Actions runners get caught in that net not because they are GitHub Actions, but because of where they physically sit.

The GitHub Actions specific mechanism

This is the part that turns "cloud IPs sometimes get blocked" into "a GitHub Actions runner specifically is exposed to this." GitHub's own documentation states it plainly: "GitHub hosts Linux and Windows runners on virtual machines in Microsoft Azure with the GitHub Actions runner application installed." A GitHub-hosted Ubuntu or Windows runner is not some neutral, unclassifiable box. It is, at the network level, an Azure VM, indistinguishable by IP range from any other Azure customer's workload, including the AWS-adjacent Azure traffic the Hacker News thread's "comprev" commenter reported getting blocked from in December 2023.

We pulled GitHub's own published IP ranges live while researching this post, via the public actions key in the GET /meta response:

curl -s "https://api.github.com/meta" | python3 -c "import json,sys; print(len(json.load(sys.stdin)['actions']))"

That returned 7297, the number of CIDR blocks currently listed for GitHub Actions runners, updated by GitHub roughly weekly. Every one of those ranges sits inside Microsoft Azure's address space. That is not a small, easily-carved-out slice of the internet Reddit could special-case; it is thousands of blocks spread across Azure's global footprint, which is exactly the kind of broad datacenter range that IP-reputation filtering targets by ASN rather than by individual address.

None of this means every single call from a GitHub Actions runner to Reddit fails every time. IP-reputation systems are probabilistic and IP ranges rotate, so a given workflow run might land on an Azure IP with a cleaner recent history and get through, while the next run on a different runner instance does not. That inconsistency is arguably worse for a production pipeline than a hard, permanent block would be: a job that fails four times out of five looks like a flaky network issue, not a policy decision, and it is the kind of failure a retry loop can mask for a while before it becomes a real outage.

GitHub Actions is not the only CI system built this way, and the customer's report generalizes further than the one product they happened to be using. GitLab's own documentation states that "Hosted runners on Linux for GitLab.com run on Google Cloud Compute Engine," the same GCP infrastructure class that shows up in the datacenter-blocking reports cited above. CircleCI's cloud-hosted plan runs the same way: its SaaS execution environment is offered directly through AWS Marketplace and documented AWS integrations, meaning a CircleCI cloud job sits on AWS infrastructure by default unless a team switches to CircleCI's self-hosted runner option and points it at its own network. Any CI product whose default, easiest-to-use tier is "we run it on our cloud account for you," which describes most hosted CI/CD by design, inherits the exact same exposure: the job's outbound IP belongs to whichever cloud provider hosts that vendor's fleet, not to the team that wrote the workflow. GitHub Actions is simply the one the customer who reported this was running.

Registering an OAuth app doesn't solve it either

The customer's report is specific on this point: no official Reddit OAuth credentials were configured. That matters, because it rules out the most obvious first response, "just register an app and use the authenticated Data API instead." Reddit's Data API Terms and developer documentation require an app registration before you get real API access, and that registration goes through a review process rather than instant self-serve, per the OAuth setup guide and the step-by-step key walkthrough. A developer on r/redditdev described the friction directly, reporting that clicking "Add App" on Reddit's own developer console just reloaded the page repeatedly, with the block escalating the more they tried: "Has anyone figured out how to get conversation data in JSON form? ... If anyone at Reddit actually reads this, for the love of God, get your act together."

Even if the app registration goes through cleanly, authentication and IP-reputation are two separate gates, and clearing one does not automatically clear the other. An OAuth token authenticates who your app is; it says nothing to Reddit's infrastructure about whether the IP address making the call belongs to a datacenter or a home network. A registered app calling from an Azure-hosted GitHub Actions runner is still, at the network layer, an Azure-hosted request. Registration removes one obstacle. It does not remove the one the customer actually hit.

Reddit's own August 2026 announcement makes this worse, not better

While researching this post, we found that Reddit's own admin team posted directly on this topic five days before this post went live. On 2026-08-05, an official r/redditdev post titled "Our Plans for the Future of Reddit's Public Data API and the Developer Platform" laid out where the API is headed:

r/

r/redditdev·u/KeyserSosa

Our Plans for the Future of Reddit’s Public Data API and the Developer Platform

00

Open on Reddit

The post states plainly that "we'll gradually start restricting all new requests and third-party apps will be required to port and operate through our Developer Platform," and sets a concrete deadline: "Please register any apps you own by September 30, 2026 to make sure your feedback is considered in our roadmaps and that your developer account is properly established." It also confirms, in Reddit's own words, that "all API apps will need to be registered to remain in good standing" going forward.

Nothing in that announcement addresses IP-level blocking of cloud and CI infrastructure directly; it is about app registration and the Developer Platform migration, a separate axis from the network-layer question this post is about. But the direction of travel is unambiguous: this is a company narrowing public API access on purpose, not one in the middle of loosening it. A pipeline built today around a workaround for the current 403 pattern should not assume that workaround gets easier to maintain over the next year.

What still works vs what breaks for a CI-triggered Reddit call

Based on the pattern across every report we read for this post, not an exhaustive endpoint-by-endpoint test of our own, a rough shape emerges. A single, occasional, human-triggered call to Reddit from a cloud IP seems to have decent odds of working, the same way the AWS EC2 user on Hacker News could still load old.reddit.com even after the JSON API blocked them. What consistently breaks is sustained, automated, unattended traffic from a fixed datacenter IP range, exactly the shape of a scheduled CI job: same IP block reused run after run, same request pattern, no human in the loop to notice a change or route around it manually.

That is the practical reason a redditapis.com customer hit this specifically inside a CI/CD workflow rather than while poking at the API from a laptop. A GitHub Actions job that runs on a schedule, hourly or on every push, sends the same request shape from the same Azure IP space over and over, which is precisely the traffic profile that IP-reputation and rate-based filtering is built to catch. It is not that Reddit singled out this one customer. It is that a scheduled CI job is, structurally, the exact use case this kind of filtering is designed to block.

The alternative: a managed endpoint reachable from CI

This is the gap redditapis.com is built to close, the same build-vs-buy tradeoff our build vs buy comparison walks through for scraping generally: a REST API that proxies Reddit data without requiring the calling environment to hold Reddit's own OAuth app credentials or clear Reddit's own review queue, and without the calling IP needing to look like a residential browser. It is the same idea behind the no-API-key MCP servers some builders reach for first, minus the reliability gap those carry once a workload needs to run unattended. Tested live from the same research environment where the direct calls to Reddit above returned 403 and 401, a call to api.redditapis.com behaved normally:

curl -s "https://api.redditapis.com/api/reddit/search?q=mcp&limit=1" \
  -H "Authorization: Bearer YOUR_API_KEY"

With a deliberately invalid key, that call returned 403 with the body {"error":"Invalid token"}, not a network-level block, an authorization response from an application that received and processed the request. That is the distinction that matters: Reddit's own endpoint refused the connection outright in the same environment; ours evaluated the request and told us the key was wrong. One is a wall. The other is a locked door you can open with the right key.

With a real key, the same call returns Reddit search results directly:

{
  "posts": [
    {
      "id": "1vgbm9c",
      "title": "Our Plans for the Future of Reddit's Public Data API and the Developer Platform",
      "author": "KeyserSosa",
      "subreddit": "redditdev",
      "upvotes": 72,
      "permalink": "/r/redditdev/comments/1vgbm9c/..."
    }
  ]
}

Pricing runs $0.002 per read, $0.005 per vote, $0.012 per write, and $0.025 per DM, with $0.50 in free credit landing automatically at signup, enough to test every endpoint a given pipeline actually calls before spending anything. There is no app-review queue: a key is issued at signup, not after a Reddit moderator reviews a use-case description. Our pricing breakdown has the full tier table, and the OAuth setup guide covers what the direct-API registration path looks like for comparison.

Wiring it into a GitHub Actions workflow

Swapping the endpoint does not mean rewriting the pipeline. It is a URL and an auth header change inside the same workflow shape a GitHub Actions job already has:

name: reddit-post-check
on:
  schedule:
    - cron: "0 * * * *"
jobs:
  check-reddit:
    runs-on: ubuntu-latest
    steps:
      - name: Query Reddit via redditapis.com
        env:
          REDDIT_API_KEY: ${{ secrets.REDDITAPIS_API_KEY }}
        run: |
          curl -sf "https://api.redditapis.com/api/reddit/sub/mcp/about" \
            -H "Authorization: Bearer $REDDIT_API_KEY" \
            -o response.json
          cat response.json

The -sf flag makes curl exit non-zero on an HTTP error, so a bad key or a service issue fails the job loudly instead of silently continuing with an empty response.json, the same failure-visibility principle covered in the guardrails section below. The key lives in GitHub's own encrypted Secrets, the same place any other CI credential would, and the workflow never has to reason about Reddit's OAuth flow, an app's review status, or which IP range the runner happens to be on that day. For a pipeline already using an MCP client instead of raw HTTP calls, reddit-mcp-server wraps the same REST layer as typed tools, so a CI step or an agent framework can call it the same way it would call any other MCP server.

If the pipeline is calling Reddit through a Python script rather than raw curl, the shape is just as direct:

import os
import requests

API_KEY = os.environ["REDDIT_API_KEY"]

resp = requests.get(
    "https://api.redditapis.com/api/reddit/sub/mcp/about",
    headers={"Authorization": f"Bearer {API_KEY}"},
    timeout=10,
)
resp.raise_for_status()
data = resp.json()
print(data["display_name_prefixed"], data["subscribers"])

Run against the live API while researching this post, that call returned r/mcp's current subscriber count directly, with no retry logic needed to work around an intermittent block.

Guardrails either path should carry

Moving to a managed endpoint removes the unpredictable failure, an IP-level block that can hit with zero warning on the first request. It does not remove the need for basic guardrails around any external call a CI job depends on:

• Set a retry ceiling. A failed call should fail the job loudly after a fixed number of attempts, never loop silently. curl -sf above is the minimal version of this; a real production job should back off between attempts rather than hammering the endpoint immediately on each retry.
• Log every call and its outcome. A job that fails at 2am on a Tuesday is only debuggable later if the log records what happened, not just that something eventually went wrong.
• Use one credential per job, not one shared across every workflow. A single key shared across ten scheduled jobs means one workflow's usage counts against every other workflow's budget, which turns an isolated problem into a fleet-wide one.
• Treat the call as an external dependency, the same as any third-party API. Decide in advance what the job does when the call fails, rather than discovering the answer is "nothing, it just silently produces stale data" during an incident.

None of this is Reddit-specific. It is the same discipline any CI job needs for any external HTTP call it depends on; Reddit's IP-blocking pattern just makes the cost of skipping it more likely to show up on a normal Tuesday than a rate limit alone would. Our rate limits guide covers the budget-and-backoff side of this once a job is on a documented, authenticated footing rather than guessing at an anonymous one.

This is not a niche complaint. r/redditdev, the subreddit where developers discuss Reddit's API directly, carries 86,222 subscribers as of this post, pulled live via our own managed API while researching it, and the r/redditdev threads cited throughout this post, from the "Add App" registration failure to Reddit's own August 2026 roadmap announcement, are evidence the friction is a live, ongoing topic there, not a one-off complaint that got fixed and forgotten.

What was actually tested, and when

• Every live status code quoted in this post, the 403 on www.reddit.com/api/info.json, the 401 on the unauthenticated token endpoint, the 403 "Invalid token" on api.redditapis.com, and the 7,297 GitHub Actions IP range count, was pulled from live calls run the same day this post was published
• Those tests ran from our own research environment, not from inside an actual GitHub Actions runner; the customer's original report is the only direct evidence of the exact GitHub Actions case
• Reddit's blocking behavior is known, from the sources cited above, to vary by IP reputation, request pattern, and time, so a different environment or a different day could see a different specific result on any single call

What should not vary is the underlying shape this post is making a case for: Reddit's API access has been getting stricter for cloud and datacenter traffic since at least December 2023, GitHub Actions runners sit squarely inside that traffic class because they are Azure virtual machines, and Reddit's own August 2026 announcement points toward more restriction, not less. The specific status code on any given Tuesday is not the argument. The trend line is.

The verdict

A customer reported Reddit's own API returning 403 from a GitHub Actions runner, with no OAuth app in the way to blame. We could not reproduce that exact GitHub Actions run ourselves, and we are not claiming to have. What we could do, and did, is verify the mechanism independently: the same Reddit endpoint returned the same 403 from our own environment, GitHub's own documentation confirms Actions runners are Azure VMs, and a three-year paper trail from Hacker News to r/redditdev to Reddit's own admin team shows this is a known, worsening pattern for automated cloud traffic generally, not an isolated glitch that hit one customer on one day.

None of that means Reddit is doing something wrong by protecting its infrastructure from automated abuse; every platform with valuable, scrapeable data draws that line eventually, and Reddit's own Data API Terms exist precisely to define where it sits, a question our is scraping Reddit legal post covers in more depth for anyone weighing where the access boundary actually falls. What it does mean is that a pipeline depending on Reddit's own API from inside GitHub Actions, or any other cloud-hosted CI system, is depending on an access path that has gotten measurably less reliable for exactly that use case since 2023, with Reddit's own words in August 2026 pointing toward more restriction ahead, not less.

Test both paths side by side: run the direct call from your own CI environment and see what comes back, then compare it against api.redditapis.com using the $0.50 free credit at signup, no card required, and see which one your pipeline can actually depend on next quarter.