We build the APIs that connect your systems together, and integrate the third-party services — payments, CRMs, marketing tools — your business already depends on.
"API development" covers two related but different needs, and most projects involve both. The first is building APIs — designing the endpoints, data structures, and authentication that let your own applications (web, mobile, internal tools) talk to a shared backend. The second is integration — connecting your systems to external services you don't control: payment processors, CRMs, email platforms, shipping providers, or a partner's existing API.
We design and build both RESTful APIs and GraphQL APIs, choosing based on how your data is shaped and how your clients need to query it. REST remains the right choice for most straightforward CRUD-style applications; GraphQL earns its added complexity when your frontend needs flexible, nested queries across related data without over-fetching. Every API we build includes proper authentication (OAuth2, JWT, or API keys depending on your use case), rate limiting, versioning, and documentation your team or partners can actually use.
If a service you use isn't on this list, that's normal — most third-party platforms expose an API, and integrating with a new one is a routine part of this work rather than a special case.
A few patterns show up repeatedly: a business has grown past spreadsheets and manual data entry between two systems that should talk to each other automatically; a new product needs to accept payments and the built-in checkout options don't fit the business model; or an existing legacy system exposes a poorly documented, outdated API that needs a modern wrapper before anything new can be built on top of it.
API work sits at the boundary between your systems and the outside world, so we treat security as part of the build, not an afterthought: input validation, rate limiting to prevent abuse, encrypted credentials, and logging that lets you trace what happened if something goes wrong. For integrations handling payments or personal data, we follow the relevant compliance patterns (PCI-DSS scope reduction, data minimization) so you're not carrying more liability than necessary.
A single, well-scoped integration (connecting one payment gateway, or one CRM sync) is often quoted within our MVP tier, starting around $1,000–$3,000. Building a full custom API from scratch to support a new product is typically part of a larger full-product engagement, starting from $4,000. See pricing details or get in touch for a scoped estimate.
Before writing any code, we map exactly what data needs to move where, how often, and what happens when the external service is slow or unavailable. A surprising amount of integration work that goes wrong does so not because the API itself was hard to use, but because no one planned for failure cases — a payment webhook that never arrives, a rate limit that gets hit during a traffic spike, duplicate data from a retried request. We build for those cases from the start rather than patching them after an incident.
Yes, this is common. We start with a technical review of the existing API to understand what's there before proposing changes, rather than assuming a rebuild is necessary.
This happens more often than you'd expect, especially with older enterprise software. We've built integrations against poorly documented APIs by reverse-engineering behavior through testing — it takes longer to scope accurately, but it's rarely a dead end.
Yes, every API we build ships with documentation your internal developers or future contractors can use, typically via OpenAPI/Swagger for REST APIs or a GraphQL schema with descriptions.