Hermesby Nous Research

Connect Marnie to Hermes

Hermes from Nous Research runs on your own machine. Add Marnie to it as a remote MCP server, then ask about your spending, bills and goals.

Needs Marnie ProFor self-hosted agents.

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Pro

Paste this into your assistant as the server URL. It's also in the app under Profile → AI agents.

https://bimzexydbsqfvqthtrgl.supabase.co/functions/v1/mcp

Connecting an assistant needs Marnie Pro. You choose whether it can suggest transactions, and you can disconnect it any time in Profile → AI agents.

Set up Hermes in 3 steps

  1. Add the link as a remote MCP server

    In your Hermes setup, add the link below as a remote MCP server with OAuth.

  2. Sign in when it opens Marnie

    Hermes shows an authorization link. Open it in a browser and sign in to Marnie.

  3. Tap Allow

    Choose whether Hermes may suggest transactions, then tap Allow access.

Plan note: For self-hosted agents.

Before you start, in Marnie

Do this once. It covers every assistant you connect.

  1. Marnie Pro

    Connecting an assistant is part of Marnie Pro. Siri, widgets and capture stay free.

  2. Turn on sharing

    In Marnie, open Profile → AI agents and switch on Share with AI agents. Marnie then keeps a short summary for your assistants, refreshed when you use the app.

  3. Copy the link

    It's the same link for everyone, shown on this page and in Profile → AI agents. Signing in is what ties it to your account.

Step by step in Hermes

Add Marnie to Hermes

  1. Add a remote MCP server to your Hermes configuration with the Marnie link as its URL and OAuth as its sign-in. Nous Research's MCP docs have the exact keys.
  2. Restart Hermes or reload its MCP servers. It prints an authorization link.
  3. Open the link, sign in to Marnie and tap Allow access. Hermes picks up the token from its callback.

Running Hermes on a server

  1. If Hermes runs on a machine without a browser, open the authorization link on another device. Over SSH, forward Hermes's callback port or paste the redirected URL back, as its docs describe.

What you can ask Hermes

Answers come back as text, worked out from your Marnie summary.

Hermes sees only the summary Marnie shares. Balances, net worth, notes, receipts, card and account numbers and your location never leave your phone.

  • “How much did I spend this month?”Your total and the top categories, with last month alongside. Also works for today, this week, last month and this year.
  • “What did I spend on coffee last month?”The matching payments from the last 90 days, filtered by category, merchant or type, with the total.
  • “Which bills are coming up?”The next bills and payday Marnie knows about, with dates and amounts.
  • “Am I safe to spend this weekend?”What's left in your budget for the period and how much that is per day.
  • “How close am I to my savings goals?”Each goal's progress, saved amount and target.
  • “Add a $12 lunch at Subway”A draft in Capture Review, if you allowed suggestions when you connected. It's saved once you approve it.

If something goes wrong

The usual fixes, starting with the ones specific to Hermes.

The sign-in page says “This request has expired”
Connection requests last 10 minutes and work once. Go back to the assistant and start connecting again.
It says connecting is part of Marnie Pro
The account you signed in with doesn't have Marnie Pro. Upgrade in the app, or choose Not you? and sign in with the account that has it.
I sign in to Marnie with Apple or Google
Use the email option on the Marnie sign-in page: enter the email your Marnie account uses and type the code we send. Using Hide My Email? The code goes to that relay address and is forwarded to you.
The assistant says there's nothing to show
Check Share with AI agents is on in Profile → AI agents, then open Marnie once so it can send its first summary.
The numbers are a day or two old
Marnie refreshes the summary when you use the app. Open Marnie, then ask again.
A purchase I asked it to add isn't in Marnie
Suggestions arrive as drafts in Capture Review the next time you open Marnie. If the assistant says it can't add, reconnect and tick Suggest transactions on the Marnie page.

Hermes and Marnie: questions

Does Hermes support remote MCP servers with OAuth?

Yes. When you add Marnie, Hermes shows an authorization link. Open it, sign in to Marnie and tap Allow access.

Can Hermes see all my transactions?

It sees the last 90 days that Marnie shares, with date, merchant, category, amount, currency and account name. Notes, receipts and card numbers stay on your phone.

Other assistants

Ask Hermes how your money's doing.

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Marnie is free to start on iPhone and Android. Connecting AI agents is part of Marnie Pro.

All AI agent guides