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Build an API integration

Your systems don't talk to each other. We fix that.

From accounting package to payment platform, from planning to customer portal — if you want two systems to communicate, we build the integration. Reliable, well-documented and maintainable.

Why “Paceline”?

A paceline is a group of riders taking short turns at the front: high pace, faster together than anyone alone. That's how we build software — short iterations, visible progress every week.

Tap the riders for an attack

Integrations with popular systems

Exact Online, Twinfield, Mollie, Stripe, SendGrid, iCal, Google Workspace — we have built the most common integrations before and know where the pitfalls are.

Custom APIs and webhooks

Does your supplier or customer have their own API? We build the integration to specification, including authentication, error handling and logging — so you always know whether data arrived correctly.

Maintainable and documented

An integration is not finished at delivery. We ensure the code is readable, API changes are tracked and you always know what is passing back and forth.

Work

Products running today

No demos or mockups — applications that are in production and used daily.

MeSyncFlow View live

An ERP you configure yourself

Full control over your business processes: build your own tables, columns and workflows — without consultants and without six-figure integration costs.

  • Your own tables, fields and relations — adjustable in one click
  • Workflows with versioning and rollback
  • Roles and permissions per department
  • Your data stays yours: export at any time
Ruby on Rails Hotwire Multi-tenant Workflows
Live · work routes itself
Sales
    Production
      Administration
        0 Active orders
        0 Open tasks

        Every completed step routes the work to the right department automatically — just like in MeSyncFlow.

        TV Someren

        Club website with a gated coaching academy

        One place for members and coaches alike: a fresh public site plus a gated academy where training content is structured methodically.

        • Methodical structure: from discipline down to a single drill
        • Five roles, each with their own permissions
        • Photos and videos per training element
        • Class schedule synced automatically via iCal
        Ruby on Rails Roles & permissions iCal Media
        RouteFrame View live

        From GPX ride to museum-grade poster

        Upload a GPX file, fine-tune everything in the live editor and download a print-ready A4 poster — for one euro, no subscription.

        • Live editor with 30+ colour palettes and 6 map styles
        • Payments via Stripe: iDEAL and Bancontact
        • Pixel-perfect PDFs via headless Chromium
        • Available in four languages
        Stripe PDF generation Leaflet i18n

        20+

        years of proven Rails in production

        4

        languages supported

        100%

        built and managed in-house

        Approach

        Four turns to production

        Clearly scoped, steady pace, always in sight of where we stand.

        1. 1

          Intro call

          Free and without obligation, half an hour. We explore your process and where software can make the difference.

        2. 2

          Scope & proposal

          A clear scope with a fixed price. You know upfront what you'll get and what it costs.

        3. 3

          Building in short turns

          Short iterations with visible results every week. Course corrections are always possible — keeping the direction sharp.

        4. 4

          Launch & maintenance

          Deploy to production, monitoring and further development. One point of contact, also after launch.

        Frequently asked questions

        Which systems have you already built integrations with?

        Exact Online, Twinfield, Mollie, Stripe, SendGrid, Mailchimp, iCal/CalDAV, Google Calendar, Dropbox, AWS S3 and various custom APIs from suppliers and clients.

        What if the external API is poorly documented?

        That happens more often than you'd think. We work with what is available, test thoroughly and build robust error handling so your system doesn't break on a timeout or unexpected response.

        Can you take over an existing integration that has stopped working?

        Yes. We start with an analysis of the existing code and API documentation, find the cause and repair or rebuild the integration.

        How long does it take to build an API integration?

        A simple integration with one endpoint is ready in one to two weeks. More complex integrations with multiple data flows and error handling take two to four weeks.

        About Paceline

        Why a small studio?

        Paceline Software is an independent Rails studio from Someren, in the Eindhoven region. We build custom web applications — from modern websites to complex ERP and maintenance-planning (MJOP) systems — and bring that experience together in our own products like MeSyncFlow and RouteFrame.

        Paceline Software

        Software for the long run, built at pace.

        • Direct contact

          You talk directly to the people who build your software. No account managers, no translation layers, no noise.

        • Proven technology

          Ruby on Rails and Hotwire: mature, maintainable technology that has been running production for twenty years — and will be ten years from now.

        • One point of contact

          From first pixel to deploy: one steady point of contact who oversees the whole project and is accountable for the result — no handoffs between departments.

        Contact

        Book an intro call

        Briefly describe what you have in mind — we'll respond within one business day.

        We only use your details to respond to your message.

        Prefer to email directly? info@pacelinesoftware.nl