Opyt
Turn what you follow on X and Substack into a knowledge base
Opyt launched on September 16, 2026 with 82 votes, #381 of 8,093 launches that month and more than 95% of that year's launches.
What it does
Opyt builds a private knowledge base from the sources you already use: bookmarks, follows, subscriptions, papers, blogs. Local installs use SQLite; Claude.ai can use a hosted connector. Open source, MIT, served over MCP.
Every bookmark, follow and subscription was you deciding whose thinking is worth your time. Opyt turns that into a knowledge base that keeps growing . It pulls in new work from the people you already read and the topics you keep coming back to. Point Opyt at the sources you already use: X, Substack, GitHub, research papers, blogs, and article pages you hand it. The saving, following and subscribing you already do is the input , and everything they publish ends up in one place you can search. Start with one source you already use. Opyt explains each connection and waits for your choice before it reads anything. claude › Everything you saved is in. 703 posts are now searchable, and Opyt knows…from useopyt.com
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