AI & Research
All-in-one AI access — no juggling API keys, no per-call billing
Capture
Get what you read OUT of the book and INTO a system
AFFILIATE
Readwise
Kindle / Apple Books / Instapaper highlights, automated
The cleanest legal way to get your Kindle highlights into Marvex Studio. Readwise syncs with every reading app, then exports PDF / Markdown you can drop into Intake. Paid, but the 30-day trial is generous.
Paid · 30-day trialVisit
Hypothesis
Web-page annotation, open-source
Highlight any webpage, tag passages, then export as JSON. Especially lovely for papers hosted on arXiv / bioRxiv / your own PDFs. Zero cost, privacy-friendly, academic-grade.
Free · Open sourceVisit
Zotero
Your research library
Track every paper, book, and web source with one click. Marvex Studio already talks to Zotero directly — paste your API key in the Intake Studio to pipe any PDF straight into the Fixer.
Free · $20/yr cloudVisit
Read
Legal sources that play nicely with Intake's public-corpus tab
Standard Ebooks
Handsome, free public-domain ebooks
Curated public-domain classics, professionally typeset. Better than raw Gutenberg text — and every download is a legit PDF ready to map. No sign-up.
Free · Public domainVisit
arXiv
Open-access preprints — physics, CS, stats, bio
Cornell's decades-old open-access server. Marvex Studio's Public Domain tab already searches and fetches PDFs directly — but the full browse experience on arxiv.org is worth knowing.
Free · Open accessVisit
PubMed
Biomedical literature search
NIH's canonical index — 35M+ papers. Open-access hits link straight to PMC PDFs that drop into Intake cleanly.
Free · Taxpayer-fundedVisit
Project Gutenberg
70,000 public-domain books
The granddaddy. Marvex Studio already converts Gutenberg plaintext into a mappable PDF via the Public Domain tab — but a slow browse is how you find the gems.
Free · Public domainVisit
Think
Where maps go after Marvex Studio
Obsidian
Your second brain · local-first Markdown
Export your mind-map to Markdown (Pro feature, coming soon) and let Obsidian's graph view reveal connections across maps you built weeks ago. Free for personal use; Publish and Sync are optional paid add-ons.
Free · Paid add-onsVisit
Anki
Spaced-repetition flashcards
Turn your deepest map elements into flashcards that stick for a decade. Import JSON; export CSV. Free on desktop, open source.
Free · Open sourceVisit
Roam Research
Networked thought
If Obsidian feels too minimal, Roam's bidirectional-linking interface may click. Paid, but beloved by a dedicated crowd.
Paid · 31-day trialVisit