Have an API built
Need an API or integration built? I design and build APIs that are reliable, well documented and ready for production, from a single endpoint to a complete integration layer.
What is an API, and when do you have one built?
An API is the agreed way for two systems to exchange data. It lets your website, app or internal tools talk to each other and to outside services, without anyone copying data by hand.
You have one built when you want to connect to an external platform, expose your own data to a partner or app, or give a new product the backend it needs to run.
What does it cost to have an API built?
There is no fixed price, because the work scales with what the API has to do. A few things drive the cost:
Number of endpoints and complexity
A single integration is a small job; a full platform API with many resources is larger.
External integrations
Each third-party system you connect to brings its own quirks, authentication and edge cases.
Security and authentication
Public APIs, partner access and payment data each raise the bar.
Documentation, tests and monitoring
The things that make an API safe to depend on for the long term.
I work on a day rate or a fixed project price. Send a short description of what you need and you will get a clear estimate.
How the process works
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1. Intake
We go over what the API has to do, which systems it touches and the constraints that matter.
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2. Design
I propose the endpoints, data model and contract before any code, so there are no surprises.
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3. Build
Implementation with tests, security and clear documentation as part of the work, not an afterthought.
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4. Delivery & support
Deployment, handover, and ongoing support or changes if you want them.
Types of API and integration
REST API
The common choice for web and mobile apps: clear, cacheable and easy to consume.
GraphQL
One flexible endpoint where clients ask for exactly the data they need.
gRPC
Fast, typed service-to-service communication for high-throughput backends.
Integrations & connectors
Linking your systems to external platforms, with retries, authentication and monitoring built in.
Frequently asked questions
How long does it take to build an API?
A focused integration can take days; a larger platform API runs over weeks. After a short intake I can give you a realistic timeline.
Can you connect to an existing system or external API?
Yes. Building a reliable layer over third-party and legacy APIs, with retries, authentication and monitoring, is core work.
Do you maintain the API afterwards?
If you want. I can hand it over to your team with documentation, or stay on for changes and support.
Thinking about having an API built?
Tell me what you want to connect or build, and you will get a clear estimate.
Email me →