Frequently asked questions

What is MemeStack?

MemeStack is a searchable image gallery — memes, infographics, charts, screenshots. Every image gets AI-generated captions, tags, and OCR so you can find that one chart that explains X or the meme about Y. Read more on the About page.

Is it Bitcoin-only?

No — topic-agnostic. The Lightning-ranked angle is how images get sorted by community zaps, but the subject can be anything: Bitcoin, politics, science, sports, history, philosophy. Only NSFW, gore, and spam are blocked.

What kind of content fits?

Self-sufficient visuals — images that communicate a complete idea, joke, or argument on their own. Filled meme templates with punchlines, editorial cartoons, infographics, charts, multi-panel comparisons, diagrams, screenshots that make a point. Pretty pictures, stock photos, decorative art, generic landscapes, food photos, AI fantasy without commentary, blank meme templates, uncaptioned reaction faces, and personal photos (birth charts, family pics, selfies) don't fit — those are raw material or private data, not shareable content. The bar: would you send this image to a friend to settle a debate or explain something?

Who can upload?

Anyone with an account. You can sign in with Lightning (LNURL-auth) or with an email magic link. Daily upload caps are tier-gated based on your account history — new accounts start smaller and unlock more as they build a track record. Head to /upload to get started.

Why Lightning?

Zaps signal real engagement — sending sats to an image costs more than a thumbs-up does. Sorting by zaps means quality is community-vetted with money, not algorithm-vetted. Browse the leaderboard to see what's currently winning.

How does AI tagging work?

When you upload an image, a vision model produces a human-readable caption, a set of scored topic tags, and a full OCR transcription of any text in the image. That metadata is indexed and powers both keyword and semantic search. Technical details live in the developer docs.

Can I delete my content?

Yes. Owner deletes are hard deletes — the database row and the R2 object are both removed. There's no soft-delete, no shadow copy, no recovery window after you confirm. See the terms for the full data-handling policy.

Is the API free?

Yes — every read endpoint is public and unauthenticated. Search, browse, image metadata, related images, leaderboard, tags — all free, no API key required. The full reference is at /developers, and there's also an MCP server at mcp.memestack.ai for AI agents.

Is there a mobile app?

No native app — the web app is fully mobile-friendly and works in any modern browser. You can also install it as a PWA (Progressive Web App) for a home-screen icon and full-screen experience: tap your browser's share menu, then "Add to Home Screen".

Do you sell my data?

No. We don't sell user data, and we don't share it with third parties for advertising or analytics resale. The full policy — what we collect, how long we keep it, and what your rights are — is in the privacy policy.

How do I report content?

Every image has a report button on its detail view — pick a reason and submit. Reports go straight into the moderation queue and are reviewed by admins. For details on what gets actioned and how, see the terms.

More questions? Email contact@memestack.ai.