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About us

We build AI systems that actually work alongside you

MadeByBrain sets up personal AI systems and AI agents for business owners, executives and professionals bound by confidentiality, and runs them for you.

MadeByBrain in three sentences

MadeByBrain builds B.R.A.I.N., a personal AI system based on the open-source agent Hermes Agent by Nous Research. It prepares emails, meetings, knowledge and decisions and only acts after your approval. Client systems run on managed hosting with Mittwald in Germany; the server, the contract and the data belong to the client.

What we do

B.R.A.I.N.: your personal AI system

Three tiers: Executive for CEOs and consultants, Executive Sovereign for boards, Confidential for law firms, tax advisors and doctors. Our service starts at €5,000.

See the offer →

Setting up and running Hermes Agent

We put Hermes Agent into production, write guides and publish our own open-source plugins in the official Hermes plugin catalog.

Hermes Agent guide →

AI agents and automation

Agents and workflows (Hermes, n8n, LLM integration) that take over recurring tasks and run in production with your approval, not just as a demo.

All services →

How we work

  1. 1

    Our own operations first

    Everything we offer runs first in our own B.R.A.I.N. on our own server. That is our lab. Only what has proven itself there runs for you.

  2. 2

    Your server, your contract, your data

    You book hosting and models directly with Mittwald in Germany, without markup. We set things up and maintain them; the infrastructure is yours.

  3. 3

    Approval, not autopilot

    B.R.A.I.N. prepares, you decide. Emails, meetings and external actions only go out once you approve them.

  4. 4

    Open and verifiable

    The foundation is open source. We publish our own extensions for free on GitHub.

What you can verify

  • Our own B.R.A.I.N. is in daily use: inbox, blog, LinkedIn, SEO reports and update monitoring run on it.
  • Two of our plugins are listed in the official Hermes plugin catalog by Nous Research: chat-length (since 23 Oct 2026) and de-law (since 25 Oct 2026).
  • We explain Hermes Agent in public: guides on this website and a video series on YouTube (@madebybrain).
  • Founder Steffen Hartmann has run his own agency since 2003, under the name MadeByBrain since 2015 and with a focus on AI since 2023. He has also run his own product brand padRelax since 2011.
  • With TrekFrame we run our own AI product for characters that stay the same person in every image. Our YouTube channel runs entirely on Steffen’s AI avatar and cloned voice.

Hermes-Plugins → · YouTube → · GitHub →

Who is behind it

MadeByBrain was founded by Steffen Hartmann. He develops B.R.A.I.N. and sets up client systems himself. We work remotely and internationally.

Until 31 December 2026 your contracting party is Kayumari Consulting LLC (USA). From January 2027 your contracting party is in the EU (Portugal).

More about Steffen Hartmann →

Frequently asked questions about MadeByBrain

What does MadeByBrain do?

MadeByBrain builds and runs personal AI systems (B.R.A.I.N.) and AI agents based on Hermes Agent for business owners, executives and professionals bound by confidentiality. Client systems run on managed hosting with Mittwald in Germany.

Does MadeByBrain still offer e-commerce or Amazon consulting?

No. Since October 2026 MadeByBrain focuses exclusively on AI systems, AI agents and Hermes Agent. Experience from running our own online retail brand feeds into projects, but we no longer offer Amazon consulting. You will find a comparison of tools for Amazon sellers at sellertoolsindex.com.

Go to Seller Tools Index →

Where do client AI systems run?

On a managed server with Mittwald in Germany that the client books and owns. Confidential content can be processed exclusively with German-hosted open-source models at Mittwald.

Who is my contracting party?

Until 31 December 2026 Kayumari Consulting LLC (USA). From January 2027 your contracting party is in the EU (Portugal). The server, contract and data at Mittwald always belong to you.

Let's talk about your AI system

In a free intro call we work out which tasks your AI system can take over first and which B.R.A.I.N. tier fits you.

Free intro call