Connect Claude Cowork to Syncpen: a shared brain for you and your AI
Claude Cowork is good at getting things done — researching a topic, drafting a plan, working through a multi-step task. The catch is the same one every agent has: what it produces lives inside one Cowork session, for one person, and it tends to fade when the session ends. Syncpen gives it somewhere to stay — a markdown workspace your AI can read from and write to, and that you (and the people you work with) can open, edit, and build on later.
And unlike a terminal setup, there's nothing to install. Cowork connects to Syncpen over a hosted URL and you simply sign in — no API key to copy, no config file. Here's how, and why it's worth it.
Why connect Cowork to Syncpen
- A place that remembers. Research and drafts don't vanish when the session closes. Next week, "read my notes from the kickoff" just works.
- Shared, not solo. Cowork is per-person. Syncpen is multiplayer — the documents your AI writes into are the same ones your teammates (and their AI) can read, edit, and comment on in real time. Cowork gives your AI a place to work; Syncpen gives it a shared place to think.
- It proposes, it doesn't overwrite. Claude can leave edits as tracked suggestions you accept or reject, and answer comment threads right where you asked — so an AI in a shared document behaves like a careful collaborator, not a bulldozer.
- Open, not opaque. Most places an agent keeps what it learns are black boxes — a vector store you can't read. A Syncpen workspace is plain markdown you can open, with a history that shows what the AI changed. You stay the editor.
Connect it (about two minutes)
You don't paste an API key for this — Cowork connects with a one-click sign-in.
- In Claude, open Customize → Connectors → Add custom connector. STEP04.png
- Name it Syncpen and paste the server URL:
`` https://www.syncpen.io/api/mcp-server/mcp ``
Leave the optional OAuth fields blank — Claude registers itself. Click Add.
- Claude opens a Syncpen sign-in. Enter the email you use for Syncpen, type the one-time code it sends you, and click Allow. (No password — Syncpen is passwordless.)
- That's it. Syncpen's tools appear in Cowork. Ask in plain language.
Sign in with the same email as your Syncpen account — that's how Cowork connects to your workspace. The same connector works in claude.ai and Claude Desktop, too.
What your AI can do once connected
- search your Syncpen library by title and full text
- read any document as clean markdown
- list your folders and documents
- create new documents, and update existing ones
- propose edits as tracked suggestions you accept or reject — instead of overwriting your text
- read and reply to comment threads
- create, rename, nest, and move folders, and move documents between them
- delete documents and folders when you're done — everything goes to trash, so nothing is lost by accident
- publish a finished draft to WordPress, Ghost, or Sanity
You never name the tools yourself. You describe what you want, and Claude picks the right one.
Example prompts to try from Cowork
A few to get going — Cowork is happy to do the multi-step ones:
"Search my Syncpen for the Q3 research and draft a summary into a new document called 'Q3 Summary'."
"Record our working session in the logs/ folder"
"Read everything in my Reports folder, then write the three main themes into a new doc."
"Read my essay draft and propose tighter openings for each section — leave them as suggestions so I can approve them."
"Pull the open comments on my launch draft, reply with the latest numbers, and resolve the ones you've answered."
"Turn my meeting notes from this week into a clean recap document, then file it in a new 'Recaps' folder."
"Find my pricing notes and check them against the draft I'm writing — flag anything that's out of date."
"Set up a 'Launch' folder inside Marketing and move my finished drafts into it."
For each, Claude searches, reads, drafts, or organizes behind the scenes and writes the result straight back into Syncpen — no copy-paste, nothing to drag around by hand.
You stay in control
- Suggestions, not silent writes. Ask for edits as suggestions and nothing changes until you accept them.
- Every agent edit is signed. The history shows whether you or the AI wrote something, so a shared document never leaves you guessing.
- Least privilege. A connected AI gets read-and-write access by default — it can draft and edit, but publishing and deleting need permission you grant. The connection only ever touches your own account, and you can disconnect it any time.
The bigger idea
Cowork gives your AI a place to work. Syncpen gives it a place to remember — and one your whole team can see. That's the difference between "the agent wrote it, somewhere" and "the agent wrote it, and you can open the document, read exactly what changed, and approve it." A workspace your agents read from and write to, in plain markdown, in the open.
In short
Connect Cowork to Syncpen once, and your AI's work stops vanishing at the end of a session. It reads your notes, drafts into your workspace, proposes edits you approve, and leaves everything where you — and the people you work with — can pick it up. A shared brain for you and your AI.