API Integration ServicesConnect Your Business Systems
Tired of manually copying data between systems? Your CRM doesn't talk to your accounting software? Orders in one system, inventory in another? API integration solves these problems by making your systems work together automatically.
What is API Integration & Why Your Business Needs It
An API (Application Programming Interface) is how software systems talk to each other. Think of it as a translator that lets your CRM understand your email marketing platform, or your e-commerce store sync with your inventory system.
Without API integration: Your team manually exports data from one system, reformats it, and imports it into another. This wastes hours every week and introduces errors.
With API integration: Data flows automatically between systems in real-time. New customer in your CRM? They're automatically added to your email list. Sale on your website? Inventory updates instantly and an invoice appears in QuickBooks.
Real Examples
- →CRM + Email Marketing: New lead fills out a form, gets added to Salesforce, and automatically starts receiving your email nurture sequence in Mailchimp.
- →E-Commerce + Inventory: Customer buys product, inventory decreases across all sales channels, and low-stock alerts trigger automatically.
- →Payments + Accounting: Stripe payment received, invoice marked paid in QuickBooks, and customer receives confirmation email.
The result? Less manual work, fewer errors, happier customers, and more time to focus on growing your business.
My API Integration Experience
With 200+ API integration projects completed, I've worked with nearly every type of API you can imagine. From simple REST APIs to complex SOAP integrations, from well-documented platforms to completely undocumented legacy systems.
Modern, most common API type. Clean, predictable, well-documented.
Enterprise, legacy systems. More complex but highly reliable.
Modern, flexible queries. Get exactly the data you need.
I've also built custom APIs for businesses that need to expose their own data to partners, customers, or internal systems. Whether you need to consume an API or create one, I can help.
Common API Integration Solutions
Platforms I've integrated hundreds of times.
CRM Integrations
Connect your customer data across all systems.
Payment Processing
Secure payment integrations for your business.
E-Commerce Platforms
Sync orders, inventory, and customers.
Accounting Software
Automate invoicing and financial data.
Marketing Automation
Connect your marketing stack for better campaigns.
Custom Internal Systems
Connect your proprietary systems.
API Integration Process
A systematic approach that ensures reliable, maintainable integrations.
Requirements Analysis
We discuss what systems need to connect, what data should flow between them, and what business outcomes you're trying to achieve.
API Documentation Review
I review the API documentation (or reverse-engineer if needed) to understand capabilities, limitations, and authentication requirements.
Architecture Planning
Design the data flow, error handling, and sync frequency. You'll see exactly how the systems will communicate.
Development & Testing
Build the integration with comprehensive testing. This includes edge cases, error scenarios, and performance testing.
Deployment & Monitoring
Deploy to production with monitoring and alerting set up so we catch issues before they become problems.
Documentation & Handoff
Complete documentation of how the integration works, troubleshooting steps, and training for your team.
Why Work with a Freelance API Developer
Direct Communication
No account managers or project coordinators in between. You talk directly to the person doing the work.
Cost-Effective
Agency overhead means agency prices. Working with me, you pay for expertise—not fancy offices.
Flexible Engagement
One-time project? Ongoing support? Retainer? We structure the engagement to match your needs.
Long-term Partnership
Many clients have worked with me for years. I know their systems, their business, and can respond quickly.
Frequently Asked Questions
How long does API integration take?
Simple integrations (like connecting Stripe to your website) typically take 1-2 days. Complex multi-system integrations can take 1-4 weeks depending on requirements, documentation quality, and testing needs.
What if the API doesn't have documentation?
I've worked with poorly documented and undocumented APIs many times. Through reverse engineering and testing, I can usually figure out how to make the integration work. This may require additional time for research and testing.
Do you maintain integrations after launch?
Yes, I offer ongoing maintenance plans for API integrations. APIs change over time, and maintenance ensures your integrations continue working. Plans start at $100/month depending on complexity.
Can you work with APIs I haven't listed?
Absolutely. I've worked with hundreds of different APIs across many industries. If it has an API (or even if you're not sure), let's discuss your requirements. Most APIs follow similar patterns once you understand them.
Let's Connect Your Systems
Tell me what systems you need connected. Free consultation to scope your integration project.