REST API design
Clean, versioned REST endpoints with OpenAPI docs that web, mobile and partner apps can call the same way.
Backend Development · AI-First · Results-Driven
APIs & Microservices,Built to Be Called
Short answer: APIs and microservices are how a backend exposes its work: an API is the contract that lets a frontend, mobile app or partner request data and actions, and microservices split that backend into small, independently deployable services instead of one large program. Together they let a product scale one piece at a time and let many clients share the same logic. We design REST, GraphQL and gRPC APIs and the services behind them so they stay stable, documented and fast as the product grows.
API & Microservices Development That Holds Up
An API is the front door to your backend — the set of endpoints a browser app, mobile app or another company's system calls to read and write data. Microservices are how you organize the code behind that door: instead of one monolith that does everything, you build small services that each own one job and deploy on their own. The two go together, because clean APIs are what let services talk to each other and to the outside world without stepping on one another.
The decisions that make or break an API are its shape and its contract. Well-designed endpoints, sensible pagination, clear error responses and versioning mean an integration written today keeps working after your next release. On the microservices side, the hard parts are drawing service boundaries, keeping data consistent across services, and handling the calls between them without cascading failures. The usual mistakes are chatty APIs that need ten round-trips, breaking changes shipped without a version, and a 'micro' service that secretly depends on five others.
We ship every API with OpenAPI or GraphQL schema docs, automated contract tests and monitoring, so your team and any partner can integrate without guessing. And because we don't split a system into services for the sake of it, you get microservices only where independent scaling or ownership actually pays off — not distributed complexity you have to babysit.
What we cover
What We Build in APIs & Microservices
GraphQL APIs
A single typed GraphQL layer so each client fetches exactly the fields it needs in one request.
Microservice decomposition
Splitting a monolith into services that deploy, scale and fail independently, with clear boundaries.
API gateways & routing
A gateway with auth, rate limiting and routing that sits in front of your services as one front door.
Service-to-service messaging
Events, queues and gRPC so services talk to each other without blocking or tight coupling.
Versioning & documentation
Backward-compatible versioning and live docs so existing integrations don't break on release.
Services
API & Microservices Services
From a first REST endpoint to a fleet of independently deployed services — with the contracts and docs that keep them usable.
New API build
A full REST or GraphQL API from data model to deployed, documented, tested endpoints.
Monolith to microservices
Carve a large app into services with clear boundaries, shared contracts and a safe migration path.
API gateway & rate limiting
Add a gateway, authentication, throttling and routing in front of existing services.
Public & partner API program
Developer-facing APIs with keys, quotas, docs and a portal for external teams to build on.
gRPC & event-driven services
High-throughput internal services over gRPC, Kafka or queues where latency and volume matter.
API performance & hardening
Profiling, caching, pagination and a security pass to make an existing API fast and safe.
Tools & platforms
The API Stack We Build With
The exact toolset depends on your goals — these are the platforms we use most, and we work with whatever your team already relies on.
Gateways & Messaging
Cloud & DevOps
Testing & Observability
Chosen per project — not a fixed menu. Have a preferred tool or platform? We’ll work with it.
Built to last
Secure, Accessible & Built to Last
We build on modern, well-supported frameworks with security and accessibility baked in — dependency hygiene, input validation, HTTPS and WCAG-minded UI — so your product is safe and usable from day one.
You own all the code and assets. Everything ships with documentation and a clean handover, so your team (or ours) can maintain and extend it without lock-in.
Who we work with
Industries We Build For
20+ years across sectors — in Houston and internationally.
Transparent pricing
Estimate your project in seconds
Pick what you’re building for an indicative range, then request an exact quote. No email wall.
Simple prices for typical tasks
- API buildfrom $8k
- Backend + DBfrom $15k
- Integrationsfrom $10k
- Care planfrom $800/mo
Proof
700+ projects, 20+ years
See the products and growth work we’ve shipped across industries — and request a case study relevant to yours.
How we work
Fixed scope. Sprints. Working software.
- 01
Scope & fixed estimate
A short discovery call turns your idea into a clear spec and a firm range — free.
- 02
Design & architecture
UX, data model and stack chosen for your scale, not ours.
- 03
Build in sprints
Working software every 1–2 weeks — you see progress, not promises.
- 04
Launch & scale
We ship, measure and keep improving with care plans.
FAQ
API & Microservices questions
How much does API or microservices development cost?
A focused REST or GraphQL API typically starts around $8,000, while a multi-service platform with a gateway, messaging and partner access runs $30,000 or more. Cost depends on the number of endpoints, how many services you split into, and integrations — use the estimator above for a range, then book a free call for a firm quote.
What is the difference between an API and a microservice?
An API is the contract — the endpoints a client calls to get data or trigger an action. A microservice is a unit of deployment — one small program that owns a slice of your backend and usually exposes its own API. You can have an API on a monolith; microservices are one way to organize the code behind your APIs.
How long does it take to build an API?
A well-scoped API usually ships in 3–6 weeks; breaking a monolith into microservices is a longer program, typically 2–4 months depending on how many services and how much data has to move. We work in 1–2 week sprints so you get callable, documented endpoints early.
Should I build a monolith or microservices?
Most products should start as a well-structured monolith and split into microservices only where a piece needs to scale, deploy or be owned independently. We help you decide honestly — microservices add real operational overhead, so we recommend them where they pay off, not by default.
Should I use REST or GraphQL?
REST is simpler and great for straightforward, cacheable resources and public APIs; GraphQL shines when many clients need different shapes of the same data and you want to avoid over-fetching. We often use REST for partner-facing APIs and GraphQL for rich app frontends, and we can run both.
Can you add an API to an existing app or website?
Yes. We regularly design and build APIs on top of an existing database, website or mobile app — exposing clean REST or GraphQL endpoints your current frontend can call, without rewriting what already works.
Do you document your APIs?
Yes. Every API ships with OpenAPI (Swagger) or GraphQL schema documentation, example requests and contract tests, so your team and any external partner can integrate without reverse-engineering it.
Do you build APIs for clients outside Houston?
Yes. We are based in Houston, TX and deliver API and microservices work to clients nationwide and internationally, working with in-house and remote teams alike — over 20+ years we've delivered 700+ projects across the US and beyond.
Get started with your API
Book a free consultation — we'll scope your API or microservices build and give you an honest range.
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