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API integration services

API integration services that connect every tool you run on.

Your CRM, accounting, payments, scheduling and website each hold part of the picture. Our API integration services connect them so customer, order and payment data moves on its own, and we build custom APIs when the connection you need doesn't exist yet.

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mystackos.com
StackOS, built by Stack Mode

Our work · StackOS

The problem

Your tools don't talk. So your team does it for them.

A payment lands in Stripe and someone types it into the books. A lead fills out a form and someone copies it into the CRM. A client changes an address in one system and the other three never hear about it.

API integration replaces those handoffs with direct connections between systems. Data is entered once and shows up everywhere it is needed, with logging and alerts so you know it worked.

What changes for you

What API integration services do for your business.

No more retyping

Data entered once flows to every system that needs it, in seconds.

One version of the truth

Customer, order and payment records that match across every tool.

Secure connections

Keys stored safely, scoped access and data that only goes where it should.

Failures you hear about

Logging and alerts on every integration, so a broken connection never goes unnoticed.

What you get

What our API integration services cover

If a system has an API, we can usually connect it. If it doesn't, we can build one.

  1. 01

    Third-party API integration

    CRMs, accounting, payment processors, email, calendars, maps and booking tools connected to each other.

  2. 02

    Custom API development

    A clean, documented API for your own software, so partners, apps and other tools can connect to it.

  3. 03

    Webhooks and syncing

    Real-time updates between systems, with retries when a service is down.

  4. 04

    Website to back office

    Forms, orders and bookings on your site landing in the systems your team works in.

  5. 05

    Data migration

    Moving records between systems cleanly when you switch tools.

  6. 06

    Monitoring

    Logs, alerts and updates when a connected service changes its API.

Proof

Work we're proud of.

See the full portfolio

Why Stack Mode

Our own business runs on integrations we built.

1

Forms straight into our CRM

Every lead from this website posts directly into StackOS, with where the visitor came from attached.

2

Payments, maps and sign-in

Reno Restaurant Guide connects Stripe billing, Mapbox maps, sign-in and email on one platform.

3

A program's phones and email

For NNCEPP, a City of Sparks program, the custom CRM we built connected phones, email and operational tools in one place.

How we work

Five steps. One team. No surprises.

Fixed pricing and a clear plan before we start, and you see the work at every stage.

  1. Strategy

    01

    We learn the business, the customer and the goal, then map the pages, features and content that will move the numbers.

  2. Design

    02

    A custom design for your brand, reviewed with you screen by screen until it feels right. No templates.

  3. Build

    03

    Clean, fast code, built to rank and to last. Applications get tested with real data before anyone relies on them.

  4. Launch

    04

    Redirects, tracking and speed checked before go-live, so nothing you already earned is lost in the move.

  5. Grow

    05

    Hosting, care and marketing after launch, so the site keeps getting better instead of going stale.

Our stack

Tools we trust for this work.

Every tool is one we use on real client projects. Tap any of them for our take.

Client reviews

Don't take our word for it.

4.9

Google rating

  • They really got to know us and incorporated our ideas into our website perfectly. In addition to our new website, they developed an amazing CRM to help streamline our workflow!
    TTT. TranNNCEPP
  • Chris and the team at Stackmode absolutely nailed our Nevada Estate Property website. I've been in real estate for over 20 years and have seen a lot of websites. This is honestly the best I've seen.
    RBRyan BordenNevada Estate Property
  • Started a very big project with Chris back in April. We just completed the project and I couldn't be more impressed with his skill, professionalism and patience.
    JDJeff DavidsonReno Restaurant Guide
  • We've had an increase of people asking about our site, our business has increased substantially. The communication is phenomenal and the budget is right on target!
    DLDon LamersWestern Nevada
  • Absolutely could not be more impressed with this company. They took my idea, created an amazing website, and provided exceptional customer service. Very modern, clean, and professional!
    CGChad GrayotBio Sealed
  • Stack Mode was able to assist me with creating a robust website with powerful marketing messages. I wouldn't just lightly recommend Stack Mode, I am an advocate for their high-quality work!
    EAElias AstutoeXp Realty
  • They were very helpful, accommodating, knowledgeable, and quick to respond! We would recommend them to anyone needing website help or marketing services. Thank you, Stack Mode!!
    SSSamantha SamuelsonBlack Eagle Consulting
  • Great work on our website and very good with communication! It's great to have a team you can count on. We highly recommend Stack Mode Marketing Group!
    DMDarik MerbachBooked Out
  • First class marketing and design services. Recommend them to anyone needing a website, marketing assistance, or even just a logo. They will go out of their way to please.
    WBWilliam BloomerWilliam R. Bloomer, CPA
  • I found Chris and his staff at Stack Mode Marketing Group to be very professional, helpful, friendly, and knowledgeable with all aspects of their services in supporting our company goals.
    AMAlex MalavazSurviveIt2
  • Stack Mode Marketing Group did a great job of creating our website. We would recommend Stack Mode Marketing Group to anyone who is looking to create a customized website!
    RBRoxanne ButlerMyan Management Group
  • Chris Foti really knows his business. He provided excellent advice to us today and he was very generous with his time!
    JRJen Rosser

FAQ

API Integration questions, answered.

What are API integration services?
API integration services connect separate software systems through their APIs, the interfaces software uses to talk to other software, so data moves between them automatically instead of being copied by hand.
What is the difference between API integration and automation?
API integration connects systems so they share data. Automation uses those connections to run a workflow, like sending a follow-up when a lead arrives. Our business process automation page covers the workflow side.
What if a tool doesn't have an API?
Sometimes there is an export, an email feed or a file drop we can work with. If the software is yours, we can build a custom API for it.
Can you build an API for our own software?
Yes. We design and document custom APIs so your apps, partners and other tools can connect to your system securely.
How do you keep integrations secure?
Keys are stored securely, access is limited to what each connection needs, data moves over encrypted connections and every integration is logged.
What do API integration services cost?
Every project gets a fixed price after a discovery call, based on the systems involved. The Price Guide shows typical ranges for custom applications.

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