MCP Server · Claude · Substack

Every session with Claude, you start from scratch.

No memory of your voice. No memory of your strategy. No memory of what you decided last week. You spend the first twenty minutes rebuilding context — just to get back to where you were yesterday. That is not a tool problem. That is a presence problem. And it is costing you more than time.

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The problem

You are not bad at using AI. You are using AI without a memory.

Here is what is actually happening every time you open Claude to work on your Substack:

You type your niche.Again
You explain your audience.Again
You describe your voice.Again
You paste in your last few posts so it has context.Again

By the time Claude is ready to help, you are already tired. And the output? Generic. Because it does not know you. It knows what you just typed in that session.

This is the Context Tax — the hidden cost every Substack creator pays, every single day, every single time they open a new chat. You are not building with AI. You are briefing a stranger who forgets you exist the moment the tab closes.

If you are already making money on Substack — if you have proven your idea works — this is the friction that is keeping you from going further. Not effort. Not talent. Not consistency. Just the fact that your AI starts from zero every time.

The solution

Donna gives Claude a permanent memory of you — and it lives in your Notion, not on our servers.

Donna is an MCP server that connects Claude directly to your Notion workspace. Before Claude writes a single word, it reads your Creator Portrait — your niche, your voice, your audience profile, your content strategy, your past decisions.

Every session. Automatically. Without you typing a word.

You open Claude. Donna loads your context. You get straight to work.

No more briefing. No more rebuilding. No more outputs that sound like they could belong to anyone.

Your Creator Portrait lives in your own Notion. Not on our servers. We do not store your strategy or your content. You own it. You control it. It goes where you go.

What changes

What changes when Claude actually knows you

Your Creator Portrait — auto-loaded every session

Every time you open Claude, Donna pulls your full context — niche, voice, audience, strategy, past decisions — before you type a single word. You do not explain yourself. You just work.

Content strategy, on demand

Ask Donna what to write next. She knows your flywheel phase, your content gaps, your last published pieces, and your audience's core pain. She does not give you a generic list. She routes you to the next right move for your specific Substack.

Essay and note drafting that sounds like you

When you are ready to write, Donna does not produce template output. Your voice reference, your positioning, and your audience intelligence are already loaded. The draft starts in your lane — not in a generic AI lane you have to drag it back from.

Substack audit

Not sure why your growth has stalled? Donna audits your Substack — your signal, your promise, your reader clarity, your positioning, your hook. She tells you exactly where the gap is. Blunt. Specific. Actionable.

Your content logged in Notion automatically

Every piece of content Donna helps you create gets saved as a page in your Notion workspace — titled, dated, ready to search. Your work builds up in a place you can see it and return to it.

From creators using Donna

What early users are saying

User feedback — 10 content ideas from real search data

Fetched 10 content ideas from live search data in one session.

Donna building a 7-step content SOP saved to Notion

Built and saved a 7-step content SOP to Notion — automatically.

Quick Wins audit identifying actionable fixes

Quick Wins audit — specific, actionable fixes identified in one session.

Steve's unsolicited message after his first full audit session

"Walked away sharper for it. Respect from the bottom of the world." — Steve

Setup

How to get started in under 10 minutes

1

Click the trial button. Enter your email.

Receive your unique Donna URL and setup guide immediately. No payment is taken until your 7-day trial ends.

2

Add Donna to Claude Desktop in one line.

Copy. Paste. Done. No coding required. The setup guide walks you through every step with screenshots.

3

Open Claude. Run the one-time audit.

Donna introduces herself, connects to your Notion, and runs audit_substack with your Substack URL. She reads your newsletter and builds your Creator Portrait. Takes about 5 minutes.

4

Every session from here starts with your context loaded.

You brief Claude once. Never again. From this point, every session begins with your full strategic context already in place.

Before you ask

The real answers to the real questions

"I'm not technical."

You do not need to be. Setup is a single line you copy and paste into one settings file. If you can send a Substack email, you can install Donna. Screenshots included in the setup guide.

"Do I need to pay for Notion?"

Notion's free plan is all you need. Donna creates and manages the workspace pages for you. You just need a free account.

"Will Donna write in my voice or sound like a robot?"

Donna builds a voice reference from your actual published work — how you open, how you close, the phrases you use, the stances you take. The output will not be perfect from day one. But it will not sound like it came from a content mill either. It improves as the portrait gets richer.

"What if I want to cancel?"

Cancel anytime. No questions. No retention emails. Your Notion data stays yours — it does not disappear when you cancel.

"Is my data safe?"

Your Creator Portrait lives in your Notion workspace — not on our servers. We do not store your content strategy, your voice, or your essays. We only store the email address used to activate your account.

The creators who figure this out early will be very difficult to compete with later.

Every week you spend rebuilding context from scratch is a week your content strategy stays shallow. The creators who lock in a permanent AI memory now — who build a Creator Portrait that gets richer over time — will have an asset that compounds.

You are already making money on Substack. You have already proven the hard part. The only thing between where you are and where you want to go is the cognitive tax of running everything from inside your own head, every single session.

Donna takes that tax off the table.

The 7-day trial costs nothing. Setup takes under 10 minutes. By the end of day one, you will have a Claude session that actually knows who you are.

Is it worth $30/month?

Compare what you're already paying — in money and in time.

Donna does what a content writer, a content strategist, and a Substack coach do. Here is what those cost in the market right now.

What you'd hire instead
Monthly cost
Freelance content writer 4–8 Substack pieces per month. Does not know your strategy or audience deeply.
$500 – $2,000
Content strategist Monthly strategy review and direction. Does not write the content.
$1,000 – $3,000
Substack growth coach Calls, feedback, accountability. 2–4 sessions per month.
$300 – $800
Donna MCP Unlimited sessions. Writes, strategizes, audits, plans — in your voice, with your context, every time.
$30/month

And that's before counting your time. If you open Claude three times a week and spend 15 minutes rebuilding context each session — that's 3 hours a month minimum. If your time is worth $30 an hour, the Context Tax alone costs you $150 a month. More than Donna. Just in setup friction.

Start your free 7-day trial

7 days free. No payment needed to start.
After the trial: $30/month. Cancel anytime. No lock-in. No questions asked.

What you get on day one: Donna installed in Claude, your Creator Portrait built, and your first session with a Claude that actually knows your Substack.

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