
YieldStack
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Online platform for commercial real estate loans

Dewey Bookmarks
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ContextBolt
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Tweetsmash
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Mapbox
X Brain turns your X/Twitter liked tweets into a searchable knowledge base. Semantic search, AI classification, and knowledge extraction.

Which is more popular?
Website, pricing, platforms and company facts side by side.
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| Website | stacksource.com | xbrain.live |
| Pricing | — | |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of StackSource yet.
Semantic search -search by meaning, not keywords. Type "advice on dealing with imposter syndrome" and it finds the right tweets even if none of them use those words. Auto-classification - 15 knowledge domains, 65+ subcategories. Engineering, career advice, marketing, finance, and so on. Runs...
What each product offers, as listed by its team.


No features have been listed yet.
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of XBrain.live yet.
Walkthroughs and reviews on video.
New StackSource Lender Interface
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing StackSource and XBrain.live.
XBrain.live's answer:
Early-stage - not yet at a scale to name individual customers
XBrain.live's answer:
People who use X/Twitter likes as a personal read-later or knowledge-capture system - the PKM and Zettelkasten/Obsidian crowd, founders and indie hackers who save build-in-public advice, and anyone with a large liked-tweets archive who's given up trying to find anything in it again.
XBrain.live's answer:
X Brain is likes-first, not bookmarks-first - X's API doesn't expose bookmarks to third parties, so most competitors build fragile browser extensions around bookmarks while your years of liked tweets sit permanently inaccessible past X's ~3,200-item archive limit. X Brain works from your official X data archive instead: upload once, and every liked tweet gets embedded, classified into 15 categories and 65+ subcategories, and enriched with an AI-extracted key takeaway. It's a one-time $4.99 payment, not a subscription, your own AI provider key is optional, and it exports natively to Obsidian and connects to Claude via MCP so you can search your likes mid-conversation.
XBrain.live's answer:
Most rivals (Dewey, Tweetsmash, ContextBolt) are subscription-priced and bookmark-first, relying on live browser extensions that break when X changes its UI. X Brain is a one-time $4.99 payment, focuses on likes (an archive format competitors can't easily reach), and is the only one with both native Obsidian export and a Claude MCP integration for searching your archive from inside an AI conversation.
XBrain.live's answer:
The founder had liked over 4,000 tweets across several years and kept hitting the same wall: X's search doesn't work on your own likes, so anything saved was effectively gone. Rebuilding notes on topics already researched once became the breaking point, which led to building a semantic search and classification pipeline over the official X data archive export.
XBrain.live's answer:
Next.js 16 (App Router, React 19) on Vercel, Supabase (PostgreSQL + pgvector) for storage and vector search, Stripe for payment, Resend for email, and OpenAI, Anthropic, or Gemini for embeddings and classification depending on the key in use.
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