Custom API integrations
Two-way integrations between your platform and any REST or GraphQL API your business depends on.
API Integration Services
We connect your apps, CRMs, payment systems, AI tools, dashboards, and SaaS platforms into reliable workflows, so your data finally flows end-to-end and your team stops copy-pasting between tools.
What is included
What this service includes.
A clear breakdown of what we build, design, and ship as part of this service.
Payment integrations
Stripe, Paddle, PayPal, and custom payment flows including subscriptions, trials, and usage-based billing.
CRM & marketing sync
HubSpot, Pipedrive, Salesforce, ActiveCampaign, and other CRM/marketing tools synced with your platform.
AI API integrations
OpenAI, document processing, transcription, and other AI APIs integrated directly into your workflows.
Communication APIs
Twilio, SendGrid, Postmark, push notifications, and in-app messaging built into your platform.
Webhooks & automation
Reliable webhook handling, retries, error monitoring, and clean automation between systems.
Use cases
Common use cases.
Real examples of what teams ship when they work with us on this service.
Stripe subscriptions and billingCRM ↔ web app two-way syncAI API integrations (OpenAI, document AI)SMS, email, and notification flowsAccounting and ERP syncBooking and calendar integrationsMarketplace payment splitsInternal microservice connectionsCustomer portals connected to your back officeBooking and scheduling systems with automated notifications
Who it is for
Who this is best for.
The teams and businesses that get the most value from this service.
SaaS founders
Founders adding billing, AI features, or third-party integrations to their SaaS platform.
Operations teams
Teams that want their tools to talk to each other instead of relying on manual handoffs.
Agencies
Agencies that need a senior integration partner for client projects with complex API work.
Growing businesses
Businesses outgrowing manual workarounds between CRM, billing, and operations tools.
Process
See our full processHow we build it.
A senior, end-to-end process, from first discovery call to launch and long-term support.
01
Discovery & integration mapping
We map every system, every data flow, and every place your team currently copy-pastes between tools.
02
Integration design
Clear contracts: which system owns which data, how often syncs run, and how errors are handled.
03
Integration development
We build the integration logic inside your existing app or platform, with custom code, Lovable or Bubble, depending on what the app already runs on.
04
Webhook & retry logic
Robust webhook handling with retries, idempotency, and observability so integrations do not silently fail.
05
Monitoring & alerting
We add logging, dashboards, and alerts so failed syncs are visible, not invisible.
06
Launch & ongoing support
Integrations evolve. We stay on to handle API changes, new endpoints, and new tools.
Related work
View full portfolioRelated projects.
Real software we have designed and shipped for clients in this space.
Lead Management System
REAL FENCING
Real Fencing is a lead management and automation platform that streamlines how fencing requests are distributed, tracked, and converted into jobs.
AI Learning
VOCA VOCA
A smart, mobile-first web application designed to help users build vocabulary in a new language through translation and contextual learning
FAQ
Frequently asked questions.
Quick answers to the questions clients ask most often about this service.
Can you integrate with any third-party API?
Almost always. If a system has a documented REST or GraphQL API, webhooks, or even a Zapier connector, we can integrate with it directly or via a middleware layer.
What if the API breaks or changes?
We design integrations with retries, error handling, and monitoring, and we stay on as a partner to update the integration when third-party APIs change.
Can you integrate AI APIs into our workflows?
Yes. We regularly integrate OpenAI, document AI, transcription, and other AI services directly into business workflows.
Can you replace Zapier or Make for complex workflows?
Often yes. For complex, business-critical workflows it is usually more reliable and cheaper to build the integration directly inside your platform than to depend on multi-step Zaps or Make scenarios.
Can you connect a customer portal or marketplace to our existing systems?
Yes. We connect portals, marketplaces and booking systems to CRMs, payment providers, calendars and internal databases, so users can serve themselves and your team works from one admin dashboard.
How long does an integration take?
Most single integrations ship in 1–3 weeks. Multi-system, two-way sync projects with retries and monitoring typically run 4–8 weeks.
Explore more
All servicesOther services we offer.
Browse our full range of custom software development services.
Have a project, workflow, or business platform you want to build?
We can discuss the best way to design, develop, and launch it.