Mastodon Scraper — hashtags, accounts & search (Fediverse)

Scrape public Mastodon / Fediverse data with no login, via the open instance API. Works against any instance (default mastodon.social). Three modes:

Mode	What you get	Use it for
Hashtag	Recent public posts for a #tag	Topic / brand / event monitoring, sentiment, research
Account	An account's profile + recent posts	Influencer & audience research, competitor tracking
Search	Accounts and hashtags matching a keyword	Discovery, audience mapping

Fediverse-wide

Point it at any Mastodon server via the instance field — the same actor scrapes mastodon.social, fosstodon.org, hachyderm.io, or any other instance. Pairs naturally with a Bluesky scraper for full decentralized-social coverage.

Output

Flat JSON rows (HTML stripped to plain text). Statuses: text, author_acct, author_display, favourites, reblogs, replies, created_at, tags, url. Accounts: acct, display_name, note, followers_count, statuses_count, url.

Input examples

{ "mode": "hashtag", "hashtag": "opensource", "instance": "mastodon.social", "maxItems": 500 }

{ "mode": "account", "accounts": ["Gargron"], "includeStatuses": true }

{ "mode": "search", "query": "climate" }

Use cases

• Fediverse social listening — follow hashtags and keywords across Mastodon instances.
• Community research — profile activity and follower data for accounts in a niche.
• Migration analytics — datasets on the decentralized social ecosystem.
• Brand monitoring — catch mentions on the network where tech early-adopters live.
• AI agents — as an MCP tool for live Fediverse pulse checks.

FAQ

How do I scrape a Mastodon hashtag? Give the actor a hashtag and an instance (defaults provided); it reads the public timeline API and returns posts as JSON — no account needed.

Does it work across different Mastodon instances? Yes — point it at any instance domain; public timelines and profiles are readable per instance.

Can I export Mastodon posts to CSV? Every run's dataset exports as CSV, Excel or JSON from the console or API.

Can I monitor an account's posts automatically? Schedule the actor with the account handle; each run appends new posts, and webhooks can notify your tools.

Legal

Uses Mastodon's open, documented instance API for public data. No login, no circumvention. Handle personal data in line with applicable law (e.g. GDPR).

Pricing

Pay-per-event: a small actor-start fee plus a per-item charge — you pay for exactly the data you pull.