Solo plan and up

Mastodon

Fediverse microblogging across independent servers and communities.

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Monthly active (est.): 2–3M; Fediverse analytics aggregates, 2026
Registered accounts: 10M+; Across federated instances - fragmented
Model: Federated; No single central graph

What Needle searches

Public Mastodon posts that match your query, with a link to each post. Included on the Solo plan and up. How teams use Mastodon with Needle

Who uses Mastodon?

Privacy-conscious users, open-source advocates, academics, and niche communities hosted on independent instances.

Why it matters for customer discovery

EU tech, FOSS, and privacy communities cluster on specific instances - useful for aligned products.
Federation means signal is fragmented; search helps catch conversations you would miss instance-by-instance.
Smaller than Bluesky/X but often highly engaged per user for the right ICP.

Best and weak for

Best for

Open-source and FOSS discourse
Privacy and EU tech communities
Academic and nonprofit audiences
Fediverse early adopters

Weak for

Mass-market B2C at scale
Single unified audience graph
High-volume viral marketing

Example Needle searches

Plain-language queries you can run in Manual Search - Needle ranks results by sentiment and buying intent.

self-hosted analytics
FOSS advocates comparing Plausible, Umami, and self-hosted stacks.
GDPR compliant email
EU-focused instance users discussing compliance-friendly tooling.
leaving Twitter for Mastodon
Migration posts identifying which communities moved and what they need.

Etiquette and gotchas

Instance rules vary - check the about page of communities you engage with.
Content warnings and local norms differ from X.

Go deeper: Multi-platform search guide