2:40 pm · API integration
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API integration and middleware that keeps your systems in sync
We connect your CRM, ERP, payments, store and HR tools so data syncs in real time, from simple Zapier flows to MuleSoft and custom APIs.
The short answer
API integration connects the software your business runs on, so data moves between systems by itself. A sale in your store updates stock everywhere, a payment marks the deal won in your CRM, and a new hire gets every account on day one. We build anything from a simple Zapier workflow to a full MuleSoft setup or a custom API.
How it works
We map your systems.
We audit every system you use, draw how data flows between them today and design the integration that fits. This usually takes one to two weeks.
We build the connections.
We write custom APIs or configure an integration platform, with secure logins, error handling and the logic that turns one system's data into another's. That usually takes two to four weeks.
We test with real data.
We try the edge cases, check failover when a system is down and run load tests at your busiest volume, usually over one to two weeks.
We launch and monitor.
You get dashboards, error alerts and performance tracking, and critical integrations get support around the clock. Launch takes about a week, and the monitoring carries on after that.
What you get
Screens are mock-ups
An integration plan: a system audit, data flow maps and the design
REST and GraphQL APIs with OpenAPI documentation and examples
Secure access with OAuth 2.0, API keys, JWT tokens or certificates
Data mapping and transformation between systems
Error handling with automatic retries, holding queues and failover
Webhooks and event-driven updates, so changes arrive at once
Rate limits and quotas that protect your systems
Monitoring dashboards, alerts and load testing
Deployment with staging, automatic releases and rollback
Support and maintenance after launch
What we connect
CRM and marketing.
We keep website forms, HubSpot, Salesforce and Mailchimp in step, so sales and marketing work from the same contacts.
Stores and marketplaces.
Stock, orders and prices stay synced across Shopify, WooCommerce, Magento, Amazon and eBay, so you never oversell.
Payments and accounts.
We link Stripe, PayPal, Square or Authorize.net to QuickBooks and your CRM, and reconciliation happens automatically.
HR and payroll.
We link BambooHR, ADP, Slack and Google Workspace, so accounts open on a new hire's first day and close on their last.
Healthcare systems.
EHR, practice management, insurance checks and billing share data over HL7 and FHIR.
Supply chain.
We connect ERP, warehouse and transport systems and supplier EDI, so you can see clearly from purchase order to delivery.
Integration platform comparison
The right approach depends on how complex the work is, your budget and your technical needs. We work with all of them.
| Factor | Zapier/ | Custom APIs | MuleSoft/ |
|---|---|---|---|
| Best for | Simple workflows | Full control needed | Enterprise complexity |
| Complexity limit | Low-medium | Unlimited | Very high |
| Maintenance | Low (platform-managed) | Medium (self-managed) | Medium (platform-assisted) |
| Scalability | Good (100K tasks/ | Excellent (unlimited) | Enterprise (millions) |
| Speed to deploy | Days | Weeks | Months |
| Custom logic | Limited (filters, formatters) | Full control | Extensive (DataWeave) |
| Error handling | Basic (retry logic) | Custom | Advanced (dead letter queues) |
| Monitoring | Dashboard only | Custom dashboards | Enterprise APM |
| Vendor lock-in | High | None | Medium-high |
| When to choose | Quick wins, simple sync | Performance-critical, complex | Multi-system enterprise |
Zapier/
Make - Best for
- Simple workflows
- Complexity limit
- Low-medium
- Maintenance
- Low (platform-managed)
- Scalability
- Good (100K tasks/
month) - Speed to deploy
- Days
- Custom logic
- Limited (filters, formatters)
- Error handling
- Basic (retry logic)
- Monitoring
- Dashboard only
- Vendor lock-in
- High
- When to choose
- Quick wins, simple sync
Custom APIs
- Best for
- Full control needed
- Complexity limit
- Unlimited
- Maintenance
- Medium (self-managed)
- Scalability
- Excellent (unlimited)
- Speed to deploy
- Weeks
- Custom logic
- Full control
- Error handling
- Custom
- Monitoring
- Custom dashboards
- Vendor lock-in
- None
- When to choose
- Performance-critical, complex
MuleSoft/
Boomi - Best for
- Enterprise complexity
- Complexity limit
- Very high
- Maintenance
- Medium (platform-assisted)
- Scalability
- Enterprise (millions)
- Speed to deploy
- Months
- Custom logic
- Extensive (DataWeave)
- Error handling
- Advanced (dead letter queues)
- Monitoring
- Enterprise APM
- Vendor lock-in
- Medium-high
- When to choose
- Multi-system enterprise
In numbers
- 90%of manual work eliminated
- $1M+in potential annual savings
- 45+systems we connect
- 500+projects completed
More from our work
- 98% client success rate
- 24/7 expert support
Success story
SaaS company
Scales to 50K users with automated integrations
We built an integration hub connecting Salesforce, Stripe, Intercom and SendGrid. It removed 40 hours a week of manual work and let revenue grow from $500K to $5M ARR without adding operations headcount.
Results
- 40 hoursWeekly manual work eliminated
- 10xRevenue growth enabled
- 99.9%Integration uptime
- ZeroData sync errors
Tools we work with
MuleSoft Anypoint and Boomi for enterprise integration, Zapier, Make and n8n for lighter workflows, Kafka and RabbitMQ for message queues, REST, GraphQL and webhooks for the connections, OAuth 2.0 and JWT for security, and AWS API Gateway and Kong to manage APIs.
Where it fits
API integration pays off when people retype the same data into two or more systems, or when reports are late because the numbers live in different places. If you want AI to read, decide and act on that data, see AI integration or AI agents and workflow automation. For follow-ups and campaigns built on synced data, see marketing automation.
Price
Every integration is quoted in writing after a free consultation, with the timeline agreed in the same quote. Platform subscriptions are paid separately. Full details on the pricing page.
FAQ
Should we use Zapier, a custom API or an enterprise platform?
Zapier and Make suit simple workflows and go live in days, but they lock you into the platform and handle errors only at a basic level. Custom APIs give you full control with no lock-in, and they take weeks. MuleSoft and Boomi suit many systems talking to each other at enterprise scale, and they take months. We work with all of them and recommend one once we've mapped your systems.
What happens when one system is down?
The integration waits and tries again. Messages that still fail go to a holding queue and someone is alerted, so nothing is lost and nothing is entered twice.
Is our data safe while it moves between systems?
Data is encrypted in transit and at rest, access uses OAuth 2.0 or signed tokens, and every transfer is logged. We set integrations up so they can pass SOC 2, HIPAA or PCI DSS reviews where those apply to you.
Can you connect a system that has no API?
Often, yes. We can go through file exports, email parsing, database access or the vendor's partner tools. In the first call we check what your system allows before we promise anything.
How much does an integration cost?
Every integration is quoted in writing after a free consultation, because the price depends on how many systems are involved and how much custom logic they need. Platform subscriptions such as Zapier or MuleSoft are paid separately.
Related
- 11:00 amNo-code and internal toolsTrackers, dashboards, approval flows and client portals, built fast on no-code and low-code platforms so your team can edit them itself.
- 4:30 pmOnline storesAI for D2C brands and online stores
- 3:40 pmBig dataBig data services that turn scattered data into answers
Pictures are illustrations
Next step
Tell us the systems you use and where data gets retyped, and we'll map the connections with you.
Book a free consultation
