A knowledge base for you and your AI agents
Grow a knowledge base from what you read.
Noeis keeps every article, highlight and note you save, grows them into a wiki that cites its sources, and lets you and your AI agents learn from it. Answers come from your own reading, with the passage quoted.
How it works
Save what you read.
Clip articles with the browser extension, paste text, or bring in your Readwise library and Notion pages. Highlights and notes stay with the passage they came from.
Grow a wiki that cites itself.
Noeis turns your sources into pages on the subjects you follow. Pages cite the passages they are built from, so you can always check the source.
Ask, and get the passage back.
Questions are answered from your library with the exact quote. When your reading has nothing on it, Noeis says so instead of guessing.
Let your agents learn from it.
Connect Claude Code, Codex and other agents to your knowledge base. You approve every connection, and access is read-only unless you grant more.
Start from a shared wiki
Read a public wiki, then make it yours.
Each of these wikis is open to read. Make this mine copies its pages into your own knowledge base, where your reading keeps growing it. The owner's private highlights, notes and sources stay with them.
Mental Models
A shareable mini-wiki for first principles, opportunity cost, inversion, and related judgment tools.
Behavioral Economics
A starter graph for loss aversion, anchoring, base rates, and decision-making under bias.
How to Think About AI
A starter graph for agents, evals, context windows, scaling laws, and capability tradeoffs.
Value Investing
A starter graph for intrinsic value, moats, owner earnings, capital allocation, and margin of safety.
Guides
AI Second Brain
What the term should mean in practice, what to evaluate, and where Noeis fits.
Second Brain App
How to compare categories of tools when you need retrieval, connected notes, and synthesis.
AI Note-Taking Workflow
How to move from saved source material to writing, planning, and reusable insight.
Personal Knowledge Management AI
How to use AI in a PKM system without creating more clutter than clarity.
Most Note Apps Solve Capture, Not Recall
Why note-taking software feels productive at capture time but still fails when you need retrieval, synthesis, and recall.
Readwise Is Not a Second Brain
Why Readwise is useful for resurfacing highlights but still does not solve the full problem of recall, concept formation, and synthesis.
How Serious Readers Turn Highlights Into Concepts
A practical workflow for moving from saved passages to clearer concepts, reusable notes, and stronger drafts.
AI for Reading Without Losing Judgment
How to use AI while reading and synthesizing without outsourcing the actual judgment that makes the work valuable.
Best Second Brain App for Founders
What founders should actually optimize for when choosing a second brain app, and why most tools over-index on capture instead of recall and synthesis.
Best Second Brain App for Researchers
A practical guide to choosing a second brain app for research-heavy workflows where source traceability, comparison, and synthesis matter more than capture volume.
Source-Backed Synthesis Workflow
A practical workflow for turning saved reading, highlights, and notes into synthesis that stays traceable to source material.
Import Reading Archive into Noeis
A practical guide to moving a reading archive into Noeis as a proof layer for source-grounded synthesis and Readwise-adjacent workflows.
From Saved Article to Draft in Noeis
A practical source-grounded workflow for turning a saved article into an evidence-backed draft in Noeis.
Build a Wiki From Your Reading
How to turn saved articles and highlights into wiki pages where every claim points back to the passage that supports it.
Connect an AI Agent to Your Reading via MCP
How to connect Claude Code, Codex, or another MCP client to your saved reading and notes in Noeis, read-only by default and approved by you.
AI Answers Quoted From Your Own Sources
How Noeis answers questions from your saved reading with exact quotes, checks those quotes, and says so when your library has nothing on the question.