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Erik Nilsen

Integrations. No cure, no pay.

If the system has an API, I can connect to it. Payments, accounting, email, AI or a business system you already use. If I can't get the integration working, you don't pay.

Request a quote

What I've already connected

I built the integrations below in products of my own with real users, not in demos.

Payments with Vipps and Stripe, side by side. Accounting in Fiken, with invoices sent as EHF e-invoices through Fiken. Domains at Norid over EPP, raw TLS over TCP, built from scratch.

Receipt data extraction with Google Document AI and Gemini, and automatic import from Gmail, Outlook and IMAP. And one of Discord's largest bots, which I ran for four years.

How no cure, no pay works

Before you get a quote, I look at the API you want to connect to: the documentation, the access and the limits. If something would stop the integration, you hear it then, not after the work is done.

You get a fixed price for the integration. If I can't make it work the way we agreed, I don't send an invoice. The guarantee covers integration work.

Built to survive failures

An API that answers slowly or is down for an hour shouldn't cost you data. In MineKvitteringer the jobs sit in a Redis queue that rebuilds itself from Postgres after a crash.

In FENO the reseller API sends signed webhooks, so the receiver can check that a notification really came from FENO.

I also test other people's systems for security holes. That's why keys and access only get the permissions the integration needs.

Where I've done it

  • FENO Domener

    Norid over EPP built from scratch, Vipps, Stripe and Fiken, an open API with OpenAPI 3.1 and signed webhooks for resellers.

  • MineKvitteringer.no

    Vipps and Stripe side by side, daily reconciliation against Fiken, Google Document AI and Gemini, and import from Gmail, Outlook and IMAP.

How we can work together

  • Fixed-price project

    You get the price in writing before anything starts, and a finished, tested result.

  • Consulting

    Hourly, in your codebase and alongside your team.

  • Operation and maintenance

    I run and maintain what I've built, so it keeps working.

  • Maintenance agreement

    A fixed agreement for updates, security fixes and small changes.

Questions and answers

What does no cure, no pay mean?

That you don't pay for an integration I can't get working. We agree up front on what has to work, and that's what I'm measured on.

What if the system has no API?

Then we look at other safe ways in, such as exports, files or email. I settle that before you get the quote.

Who owns the code?

We agree on that in the quote, for each project.

How fast will I hear back?

Within one working day.

Do you work with businesses outside Norway?

Yes. I'm in the same time zone as Stockholm and Berlin, and I take meetings in Norwegian or English.

Tell me what you need.

Request a quote