Robust APIs & Integrations That Connect Everything
The plumbing your product runs on — well-designed REST and GraphQL APIs, microservices and third-party integrations that are secure, documented and built to scale.
At a Glance
- Engagement
- Fixed-price or dedicated team
- First response
- Within 1 business day
- Scoped quote
- Within 48 hours
- Ownership
- Full source & IP transferred
Core Stack
API Development Services
REST & GraphQL APIs
Clean, versioned, well-documented APIs designed around how your clients actually consume them.
Microservices
Decomposed services with clear contracts, messaging and independent deployability.
Third-Party Integration
Payment, CRM, ERP, logistics and SaaS integrations with retries, idempotency and monitoring.
API Gateways & Security
Auth (OAuth2/JWT), rate limiting, API keys and gateway policies done right.
Webhooks & Eventing
Reliable webhook delivery and event-driven pipelines with dead-letter handling.
Docs & Developer Experience
OpenAPI specs, sandboxes and SDKs that make your API a pleasure to integrate.
The KeasBrain Difference
- Contract-first — We design the API contract before code so consumers are never surprised.
- Secure by design — Auth, rate limiting and input validation built in, not bolted on.
- Observable — Logging, tracing and alerting so you see failures before customers do.
- Documented — Every API ships with OpenAPI docs and examples.
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Years of Experience
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Projects Delivered
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Happy Clients
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Client Satisfaction
A Clear Path From Idea to Impact
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1
Discover
Free consultation + scope audit
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2
Design
Architecture & UX validated upfront
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3
Build
Agile sprints with weekly demos
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4
Scale
Launch, monitor & optimize
Tools & Platforms We Use
API Development Questions
REST for simple, cacheable resources and broad client support; GraphQL when clients need flexible, aggregated queries. We often use both in one system and advise per use case.
Yes — we handle flaky upstreams with retries, idempotency, queuing and monitoring so your product stays reliable even when a partner API isn't.
Always — OpenAPI/GraphQL schemas, examples and, where useful, client SDKs and a sandbox environment.
Yes — we review auth, rate limiting, input validation and exposure, then remediate with a prioritized plan.