It sorts itself
Name a few interests — your reno, a research thread, tabletop games. Every capture auto-routes to the right one. No folders, no filing, no empty-bucket guilt.
Your second brain
Capture it today. Find it later.
Text it, email it, share a link or an AI chat, snap a book cover, or have your AI assistant save it — BrainTrellis reads whatever you send, files it under the right interest, and keeps it all on one board, with your to-dos marked so you can pull up just those. Anything you saved is one plain-language question from coming back.
- No card to start
- Kept until you delete it
- Export anything, anytime
just captured · 3 things → filed
- a link about GLM-5.2 open weights AI Tools
- a photo of a book cover Reading · book card
- an article to read this weekend To-do
Everything lands in the right place and stays put. Your to-dos are one tap away.
Every door in — including ones nobody else has.
Web
Text & photo (SMS/MMS)
Email-in
AI chats
Your phone's Share button
MCP / agents
REST API
Import (Pocket, Notion, Readwise)
Refugee from Pocket or Omnivore? Bring your whole library and let it sort itself.
Just text it.
Link your phone once. Then text anything to BrainTrellis: an idea, a link, a photo of a book cover or a whiteboard. It lands in your feed in seconds, and an email comes back telling you what it became and where it was filed. Any phone, any carrier.
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Add
#recipesand it's filed under Recipes. -
Add
@todoand it's on your to-do list. - Texting is part of Pro, and of your 14-day free trial.
Or just email it.
Forward anything to one address: a newsletter, a receipt, a thread, a note to self. We know it's you by the address you send from, so there's nothing to set up. Unlimited, on every plan.
Saving things is easy. The hard part is everything after.
Every app gives you a place to dump links. BrainTrellis does the three things that actually turn a pile of saves into something you use.
It keeps your to-dos straight
Everything sits on one board. Mark the things you mean to get to as to-dos, check them off when you have, and pull up just the to-dos with one tap. Done stays on the list until you clear it.
It brings it back
Ask a question in plain language and get a cited answer from your own notes. Give a note a due date and it reminds you. So what you keep actually gets used.
Your second brain, inside the AI you already use.
Connect BrainTrellis to ChatGPT or Claude once. From then on, your assistant can look things up in your notes, answer from them, and save to them while you talk. No copying and pasting, no re-explaining, no great conversation lost when you close the tab.
Claude · connected to BrainTrellis
What have I saved about onboarding flows?
searched your notes
You've saved three things: a Linear teardown on empty states, your own note
"show a sample note on day one", and a podcast clip on activation metrics.
The common thread: get people to their first win in under a minute.
Great. Save this whole conversation to my Product interest.
saved to Product
Done. It's in your BrainTrellis, searchable with everything else.
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A memory that follows you
Your notes come along to every assistant you connect. Ask in ChatGPT on Monday, in Claude on Tuesday: both know what you've saved.
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Keep the good conversations
"Save this chat." The whole conversation lands in your trellis, word for word, filed and searchable, instead of vanishing into a sidebar of old chats.
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Answers grounded in your notes
Ask a question and your assistant answers from what you saved, with links back to the notes it used. Ask for a map of a topic and get a cited overview.
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Filing by just asking
"Add this to my reading list." "Mark that one done." "Tag these #recipes." Your assistant captures, files, edits and tidies, so the busywork happens in the conversation.
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Private, and yours to switch off
You sign in and click Allow; there are no keys to paste. The assistant sees only your notes, and you can disconnect it any time from your profile.
1In ChatGPT or Claude, add a connector with this address:
https://braintrellis.com/mcp2Sign in to BrainTrellis and click Allow.
3Ask away. Works in Claude (web, desktop and Claude Code),
ChatGPT, and any app that supports MCP.
Included with Pro, from $5/mo, and with every Founding Member seat. Your 14-day trial includes it.
Start your free trialEvery kind of capture, in one place.
A stray thought, a checklist, a link, a photo, a clip, a book you snapped, even a shared AI chat — summarized and filed under the interest it belongs to.
Built for people who save things.
If your mind never really switches off, this is for you. Get it out of your head in a second; BrainTrellis files it, and brings it back when you need it.
Creators
Hooks, captions, screenshots, trends.
Ask which hooks you saved about pricing.
Developers
Snippets, error fixes, commands, prompts.
Your saved fixes, right inside Claude Code.
AI power users
Prompts, workflows, whole ChatGPT and Claude chats.
Save a great conversation in one line.
Founders
Ideas, customer quotes, angles, 2 a.m. thoughts.
Filed under the right project, automatically.
Designers
UI inspiration, palettes, layouts, type.
Find a screenshot by what's in it.
Writers
Story seeds, quotes, research, overheard lines.
Find “that lighthouse thing” without the word.
Students
Lecture photos, links, study notes.
Ask your notes the night before the exam.
Researchers
Articles, sources, findings, rabbit holes.
Answers that cite your own sources.
Marketers
Ad ideas, winning creative, competitor moves.
Every swipe file, searchable by meaning.
Readers
Book covers, quotes, recommendations.
Snap a cover; it knows the book.
Home projects
Paint colours, contractor quotes, the reno plan.
Share the project with your partner.
Tabletop and gamers
Campaign ideas, maps, rules, characters.
Every session's notes, in one place.
A second brain that thinks with you.
Save anything — even AI chats
Links, photos, videos, voice notes — and shared ChatGPT, Claude, or Gemini conversations, captured as first-class notes. The thinking you do with AI finally has a home.
It pre-chews for you
An LLM summarizes what you save, files it under the right interest and links it to related notes, so a tangle of fragments becomes something you can actually read, not just re-stack.
Find by meaning
Semantic search across everything you've kept. Search "that pricing idea" and get it — even if you never wrote the word "pricing."
Ask your brain
Pose a question in plain language — "what did I find about onboarding?" — and pull a synthesized, cited answer straight from your own captures.
One board, plus your to-dos
Everything you save lands on one board, filed by interest. Mark anything a to-do, check it off when it's done, and see just your to-dos with one tap. Nothing expires unless you switch composting on.
Folders inside interests
Group the notes inside an interest into named folders — Gear, Trip planning, Trail journal. One tap, no upkeep.
Share a corner of your brain
Invite your partner into an interest or folder. Their notes wait in a review lane until you wave them in — then catch up together.
Make it yours
Four themes with real character: a warm paper notebook, glass panes in a green conservatory, a bold black-and-white broadsheet, a night garden. Or bring your own VS Code colors.
BrainTrellis vs. a pile of saved links.
Saving things is a great start. It's also where most apps stop — and where your best finds go to die.
| Capability | A pile of saved links | BrainTrellis |
|---|---|---|
| Ways to capture | A paste box | Web, SMS, email, your phone's Share button, AI chats, MCP & API |
| Organization | Folders you maintain | Auto-routed to the interests you care about |
| Things to get to | Lost in the pile | Marked as to-dos, one tap to see them |
| AI chats | A dead link | First-class, pre-chewed & searchable |
| Makes sense of it | You re-read everything | Summarized & linked to related notes |
| Getting it back | Scroll and hope | Ask in plain language, get a cited answer |
| Works with AI agents | — | Hosted MCP server + API |
| Price | Often free — then sold or shut down | From $5/mo — independent, export anytime |
Free stores it. Pro makes it think.
On Free, BrainTrellis keeps everything you send and you file it by hand. Pro turns on the AI that reads, files, and answers — plus capture from anywhere. Cancel anytime, export everything.
$0
A manual second brain. Unlimited, on the house.
- Unlimited notes — capture on the web or by email
- One board with your to-dos marked, kept until you delete them
- Keyword search · your images & videos, kept
- The AI (filing, ask, search) & extra channels are Pro
$4.17/mo
$5/mo
$50 billed yearly · $4.17/mo
billed monthly
- Your notes inside ChatGPT & Claude: search, ask and save as you chat
- The AI reads & files every note under your interests, with a summary
- Ask your brain — cited answers · semantic search · AI maps
- Book & image recognition
- Capture from anywhere — text it · REST API
- Everything in Free
$150once
Lifetime Pro · first 250 only
- Everything in Pro, forever
- One payment, no renewal
- Grandfathered as the product grows
Every plan: your data is yours. Export the whole trellis anytime — no lock-in.
For builders
Your interests have an API, too.
The same hosted MCP server works with Claude Code, Cursor and any MCP client, and scripts and Shortcuts get a plain HTTP API with personal tokens. Both are part of Pro.
- Hosted MCP server — search, ask, capture, file and tidy from any assistant
- OAuth 2.1 sign-in — nothing to paste, revocable
- Personal API tokens for scripts & Shortcuts
# plug your trellis into Claude $ claude mcp add --transport http braintrellis https://braintrellis.com/mcp # capture from a script $ curl -H "Authorization: Bearer $BT_TOKEN" \ -d '{"body": "https://chatgpt.com/share/…"}' \ https://braintrellis.com/api/v1/notes ✓ routed to "Tabletop RPGs"
Three steps. Then it runs itself.
1
Capture anything
Type it, text it, email it, share a link or an AI chat, or let your AI assistant drop it in. One door for everything.
2
It sorts itself
Each capture is filed under the right interest, gets summarized, and links up with related notes.
3
You use it
Ask it anything, find notes by meaning, and get reminded when something is due. Your to-dos are one tap away.
Plugs into your stack. Capture from your AI assistant, Apple Shortcuts, or your own scripts over MCP & a REST API — the same filing, wherever the thought shows up.
Give your interests a place to grow.
Stop drowning your best finds in a feed you never revisit. Fire them in, and let BrainTrellis do the filing — and the remembering.
No card to start · Pro from $5/mo · Export anytime