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Lemmy Scraper - Federated Reddit Alternative

Scrape posts and comments from any Lemmy instance (the open, federated Reddit alternative). Filter by community, search keyword, or pull instance-wide feeds. No login required. Built for AI training datasets, fediverse research, and community monitoring.

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from $0.30 / 1,000 results

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NIJ KANANI

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🐭 Lemmy Scraper

Scrape posts and comments from any Lemmy instance — the federated, open-source Reddit alternative. No login. No rate-limit nightmares. Works with lemmy.world, lemmy.ml, beehaw.org, sh.itjust.works, and any other instance.

🎯 Built for AI/LLM training datasets, fediverse research, brand monitoring on emerging platforms, and Reddit alternatives analysis.

✨ What you can do

🏘️ Community posts — pull all posts from one or many communities
🔍 Search — keyword search across an instance
🌐 Instance feed — top/hot/new across the whole instance
💬 Optional comment trees — flattened with paths for tree reconstruction
🔁 Sort options — Hot, Active, New, Top (multiple ranges), MostComments
🌍 Cross-instance federation aware (asklemmy@lemmy.ml)

🚀 Quick start

{
    "instance": "lemmy.world",
    "mode": "community",
    "communities": ["technology@lemmy.world", "asklemmy@lemmy.ml"],
    "sort": "Top",
    "topRange": "TopWeek",
    "maxItems": 200
}

📥 Input

Field	Description
`instance`	Hostname (e.g. `lemmy.world`)
`mode`	`community` / `search` / `instance`
`communities`	Names like `tech` or `tech@lemmy.world`
`searchQueries`	Keywords
`sort`	`Hot`, `Active`, `New`, `Top`, `MostComments`, `NewComments`
`topRange`	When sort = `Top`: `TopHour` … `TopAll`
`maxItems`	Cap per target
`includeComments`	Fetch comment trees

📤 Output (per post)

{
    "instance": "lemmy.world",
    "community": "technology",
    "title": "Some headline",
    "body": "Body text or empty",
    "creator": "username",
    "creatorActor": "https://lemmy.world/u/username",
    "score": 123,
    "upvotes": 130,
    "downvotes": 7,
    "comments": 42,
    "publishedAt": "2026-04-15T...",
    "url": "https://example.com/article",
    "thumbnailUrl": "https://...",
    "nsfw": false,
    "apId": "https://lemmy.world/post/123456",
    "postUrl": "https://lemmy.world/post/123456",
    "commentsList": [
        {
            "id": 9999,
            "creator": "commenter",
            "content": "Reply text",
            "score": 12,
            "publishedAt": "...",
            "path": "0.123.456"
        }
    ]
}

🎯 Use cases

Who	Why
🤖 AI/LLM teams	Reddit-style training data without Reddit's API gate
📚 Researchers	Federation studies, online community migration patterns
📊 Marketers	Track brand mentions on emerging platforms
📰 Journalists	Source mining on Reddit-alternative communities

⚙️ Tech notes

Uses Lemmy's official /api/v3 REST endpoints — fully open, no key required
Federation-aware: community@instance syntax works for any cross-instance pull
Pagination via page parameter; auto-stops when no new posts returned
Comment trees fetched separately and capped per post for performance

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