What platforms does Grapha AI support?

Grapha AI is available on MacOS.

What are the limitations of Grapha AI?

Restricted to Apple silicon Macs running macOS 14 or later, with no Windows, Linux, iOS or Android version. Only useful if you already use Claude Code, Codex or Cursor; the harness has nothing to run otherwise. No hosted sync, mobile capture or web access is described, so multi device workflows depend on your own folder syncing.

Grapha AI

Name: Grapha AI
Author: Grapha AI

A Mac markdown notes app where your coding agent works inside your own folder

Intermediate

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Screenshot of Grapha AI, A Mac markdown notes app where your coding agent works inside your own folder

What is Grapha AI?

Grapha AI is a developer tool. A free native macOS markdown editor with a paid, one time agent harness that lets Claude Code, Codex or Cursor read labelled notes in a local folder and keep them updated with figures from connected databases.

Grapha is a native macOS notes application built around a simple premise: your notes should be plain markdown files sitting in a folder you control, and the coding agent you already pay for should be able to work inside that folder. The editor itself costs nothing and is available to everyone. What you buy, if you want it, is the agent harness: a one time $49 purchase rather than a recurring subscription, which connects Claude Code, Codex or Cursor to your note library. The permission model is the most interesting part of the design. Agents do not get blanket access to your vault. They read only the documents you explicitly label, and everything else stays invisible to them. That gives you a way to keep sensitive material in the same folder as working notes without exposing it to automated processing. The second idea is note maintenance: Grapha is pitched at keeping notes current by citing numbers or logic pulled from connected databases, so a document can be refreshed against a source of truth rather than quietly going stale. In practice the tool suits people who already write in markdown and already use a terminal based coding agent. Instead of copying context into a chat window, the agent opens files in place, edits them, and leaves the results as ordinary .md files you can read, diff, sync or move to another editor at any time. There is no account to create and no proprietary storage layer, which lowers the switching cost if you later decide the app is not for you. The tradeoffs are real, though. It is macOS only, Apple silicon only, and requires macOS 14 or later, so Windows and Linux users are out. If you do not already run Claude Code, Codex or Cursor, the paid harness has little to attach to. And anyone expecting a hosted, multi device notes service with mobile capture will find Grapha deliberately narrower: it is a local folder with an agent bolted on, not a cloud workspace.

How do you use Grapha AI?

1Download the macOS build
Grab the disk image from the download link on the site. It is built for Apple silicon and needs macOS 14 or later, so check your machine before installing.
2Open Grapha and pick a notes folder
Launch the app without creating an account. Point it at the folder where you want your markdown files to live, since the app works directly on files rather than importing them into a library.
3Write or import markdown notes
Use the free editor to draft new documents or bring existing .md files into the folder. Because everything is plain text, notes stay readable in any other editor.
4Label the documents agents may read
Apply the label to notes you want exposed to the agent. Anything unlabelled stays invisible, so leave client data and personal notes untouched.
5Connect your coding agent
With the 30 day agent trial active, wire Grapha to Claude Code, Codex or Cursor so the agent can open and edit the labelled files in place.
6Keep notes current from connected databases
Where a note depends on figures or logic, cite them from a connected database so the document can be refreshed instead of slowly drifting out of date.

Pros and cons

Pros

Notes are plain markdown files in a folder you own, so nothing is locked into a proprietary formatAI
Agents see only the documents you label, keeping the rest of your library privateAI
One time $49 harness fee instead of a recurring monthly subscriptionAI
The editor itself is free, so the writing experience costs nothing to evaluateAI
No account required, which keeps setup short and avoids another loginAI

Cons

Restricted to Apple silicon Macs running macOS 14 or later, with no Windows, Linux, iOS or Android versionAI
Only useful if you already use Claude Code, Codex or Cursor; the harness has nothing to run otherwiseAI
No hosted sync, mobile capture or web access is described, so multi device workflows depend on your own folder syncingAI
Database citation depends on connected sources that the site does not itemise, so scope is hard to judge before buyingAI
No documentation, help centre or support channel is published on the siteAI

How much does Grapha AI cost?

Free trial

Agent functionality is free for 30 days starting from your first run of the app, giving time to test the labelled document workflow before paying the one time harness fee.

Learn more

Pricing

The markdown editor is free for everyone, permanently. The agent harness is a one time $49 purchase rather than a monthly charge. Agents are free for 30 days from your first run, after which the harness purchase applies.

Learn more

Integrations

Works with the coding agents you already use: Claude Code, Codex or Cursor. Notes can also cite figures and logic from connected databases, though the site does not list which database providers are supported.

Features

A native Mac markdown editor storing plain files in a folder you own, plus an agent harness that runs Claude Code, Codex or Cursor against labelled notes. Access control limits agents to documents you mark, and notes can cite numbers or logic from connected databases to stay current. No account is needed to start.

Frequently asked questions about Grapha AI

How much does Grapha AI cost?
The markdown editor is free for everyone, permanently. The agent harness is a one time $49 purchase rather than a monthly charge. Agents are free for 30 days from your first run, after which the harness purchase applies.
Does Grapha AI offer a free trial?
Agent functionality is free for 30 days starting from your first run of the app, giving time to test the labelled document workflow before paying the one time harness fee.
How do you use Grapha AI?
The walkthrough on this page covers 6 steps: 1. Download the macOS build 2. Open Grapha and pick a notes folder 3. Write or import markdown notes 4. Label the documents agents may read 5. Connect your coding agent 6. Keep notes current from connected databases.
What platforms does Grapha AI support?
Grapha AI is available on MacOS.
What does Grapha AI integrate with?
Works with the coding agents you already use: Claude Code, Codex or Cursor. Notes can also cite figures and logic from connected databases, though the site does not list which database providers are supported.
What are the limitations of Grapha AI?
Restricted to Apple silicon Macs running macOS 14 or later, with no Windows, Linux, iOS or Android version. Only useful if you already use Claude Code, Codex or Cursor; the harness has nothing to run otherwise. No hosted sync, mobile capture or web access is described, so multi device workflows depend on your own folder syncing.