Medium is a home to read and write human stories. Share knowledge and wisdom with the world—without having to build a mailing list or a following first. The internet is noisy and chaotic; Medium is quiet yet full of insight. It’s simple, beautiful, collaborative, and helps you find the right readers for whatever you have to say.
This is the 11th launch from Medium. View more
TK by Medium
Launching today
What if every thought had the chance to become something extraordinary? Meet TK, the agentic notebook by Medium. Capture every spark, from shower thoughts to forgotten notes. With AI right where you write, connect the dots, surface new possibilities, and compound what you know without breaking your flow. Then turn your thinking into writing that’s unmistakably yours. With built-in community and an MCP server that connects to your favorite LLMs and AI tools.
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Promoted
Hey Product Hunt 👋
I’m Tony, CEO of Medium. TK is our new agentic notebook, built by people who love to write, for a world that now runs on words.
Every AI tool you use gets better the more of your thinking it can read, so every word you write, even the messy ones, works on your behalf.
Chat apps can help you research, but TK helps you write. Three simple steps level up your writing: craft, compound, create.
1. Craft. Writing is thinking.
Craft your best writing distraction free—no clutter and a TK agent that works inline so that you never have take your fingers off the keyboard.
Pull ideas from an instant memory of all your words: voice memos from your walk, partial drafts, Granola notes, Claude research chats, anything you’ve ever written on Medium, and, yes, your old Bear or Obsidian vault.
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2. Compound. Every note makes the next one more useful.
Deep thinking comes from building on what you’ve written before. The TK agent can remember, prompt next steps, and organize all your writing. You can /wikify anything into a mini knowledge base, transform raw ideas into blog posts, and transform blog posts into books.
The deepest thinking requires feedback, so TK ships with built-in social and agentic feedback loops.
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3. Create. The more you write, the more influence you have on the world.
Share privately, publish publicly. Turn your ideas file into apps with Claude Code. Pass your written intelligence to any agent you work with.
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For maximalists, connect your writing to your entire agentic universe and run your entire day from a single Daily Note. Install the TK Claude plugin for this extremist view on fighting brain fry.
Free tier ships with everything other note taking apps charge for: unlimited notes, publishing, and collaboration. Plus built-in agent and social layers.
Pro tier is $12/month for full access to the TK agent, skills, summaries, and MCP.
Onward to more writing!
I wish there were a way to say this that wouldn't sound so cheesy: I remember what it felt like to get my blogger account, and to be able to write about muddy, messy, or even mundane things, and turn strangers into lifelong friends because of words. I remember what it felt like to get my twttr account, and turn strangers into lifelong friends because of words. These past months of the TK beta have felt exactly the same. And, yet again, I feel complete strangers becoming lifelong friends, just because of words.
So, yeah, I 1000% subscribe to the premise underlying this moonshot, and I'm glad you keep going and keep trying and keep believing that writing is thinking, and thinking is important.
An MCP server on a notes app is the detail that makes this more than another notebook, because my thinking already lives partly in Claude and I would want it to pull from the same place I write.