Use case · AI agents
So AI agents can read, and with Pro write, your local markdown files. Markd.ly is one of the very few consumer editors that ships it — and this page is precise about exactly what is Free, what is Pro, and which platform it runs on, because vague AI claims are how people get burned.
Mac · Windows · one license, both desktops · lifetime $19 launch / $29 retail
MCP lets an AI agent talk to Markd.ly's markdown context in a structured way — your documents become something an agent can operate on, not just text you paste into a chat box. In practice: an agent can pull in your notes, draft into your files, and work against your real local markdown instead of a copy living in someone's cloud.
MCP read access: Free
Available on the Mac build's free tier — agents can read your markdown context at no cost.
MCP write access: Pro, and Mac only
Letting an agent write into your files is a Pro feature, and it ships on the Mac direct-download build. MCP write is not on Windows — Windows Pro tooling is rolling in across the 1.x series, and MCP write specifically is Mac-only at this contract. Do not assume Windows.
Not on mobile
Mobile is a free local editor with no Pro and no MCP write.
Stating this plainly is the point: the value is real, but it is Mac-deepest, and the write capability is Pro + Mac. Anyone who needs MCP write on Windows should not buy on the assumption it is there.
Most editors that talk about AI mean a chat panel that sees a copy of your text. MCP is different: it is structured access to your actual local files, so an agent's edits land in the .md on your disk — which is also where git, your other tools, and future-you will look. Because Markd.ly is files-on-disk with no proprietary container, there is no lock-in around the AI workflow either: the files an agent touches are just files.
MCP write is Pro + Mac only
Restated because it is the single most important caveat on this page.
No sync
The files an agent edits are local; Markd.ly does not sync them anywhere.
You own the risk surface
Letting an agent write to files is powerful and you should treat it like any tool with write access — Markd.ly gives you the capability, not a safety net for an agent's mistakes.
Windows Pro is incomplete generally
“Rolling across 1.x”; MCP write specifically is Mac.
Native Mac & Windows editor. MCP read is Free; MCP write is Pro, Mac. One lifetime license: $19 launch / $29 retail.
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