Third-Party API Integration
Stripe, HubSpot, Salesforce, Slack, Twilio, QuickBooks — connected end-to-end.
Cloud & API Integration
Cloud & API Integration Services for Modern Businesses
Xentosoft designs, builds, and maintains cloud infrastructure and API integrations that connect your entire stack — from AWS, GCP, and Azure to Stripe, HubSpot, Salesforce, and any custom third-party API — so your systems talk to each other reliably, securely, and at scale.
Free 30-min call NDA on request Quote in 48h
Business Challenges
The Hidden Costs of Off-the-Shelf Software
Common roadblocks teams face before they invest in a tailor-made solution.
Disconnected Systems
CRM, ERP, billing, and analytics living in silos — data trapped, teams frustrated.
Fragile Cloud Setup
Manual deploys, no autoscaling, surprise cloud bills, and downtime you can't explain.
Insecure API Access
API keys in code, no rate limits, no audit trail — a breach waiting to happen.
Our Solutions
How Xentosoft Solves It
Unified API Layer
One clean, versioned API gateway routing to every internal and third-party service.
Scalable Cloud Architecture
IaC-driven AWS/GCP/Azure setups with autoscaling, monitoring, and cost controls.
Enterprise-Grade Security
OAuth 2.0, JWT, secret management, rate limiting, and full observability by default.
Benefits
Business Outcomes That Matter
Enterprise-Grade Security
SOC 2, GDPR, and OWASP-aligned from day one.
High Performance
Lightning-fast apps with sub-second load times.
Dedicated Team
Senior engineers who know your domain and context.
Modern Tech Stack
Built with battle-tested frameworks and tools.
Full IP Ownership
You own the code, the data, and the roadmap.
Ongoing Support
30-day stabilization and SLAs for long-term success.
Development Process
A Proven Path to Shipping Great Software
Transparent, collaborative, and engineered for predictable outcomes.
-
01
Discovery
Understanding business challenges and success metrics.
-
02
Strategy
Defining technical architecture and delivery roadmap.
-
03
Design
Crafting intuitive user experiences and interfaces.
-
04
Development
Building scalable, production-grade solutions.
-
05
Testing
Ensuring quality, performance, and security.
-
06
Launch & Support
Continuous improvement and optimization.
Technology Stack
Built With Modern Technologies
We build with future-ready technologies that scale and stay maintainable.
Cloud Platforms
- AWS
- Google Cloud
- Microsoft Azure
- Cloudflare
Infrastructure
- Terraform
- Pulumi
- Kubernetes
- Docker
API & Integration
- REST
- GraphQL
- gRPC
- Kong
- AWS API Gateway
Data & Events
- Kafka
- RabbitMQ
- Airbyte
- Fivetran
- PostgreSQL
Observability
- Datadog
- Grafana
- Sentry
- OpenTelemetry
Case Studies
Outcomes That Move the Business
Unified 14 payment providers behind one API
Challenge
14 payment integrations with inconsistent errors, no unified reporting.
Solution
Normalized payments API gateway with routing, retries, unified webhooks.
Outcome
Ship new providers in hours, full audit trails.
14 → 1 API99.98% uptime−72% dev time
Migrated legacy monolith to AWS in 90 days
Challenge
Aging on-prem hitting scale limits, weekly outages.
Solution
Terraform-driven AWS migration with EKS, RDS, blue-green deploys.
Outcome
Zero-downtime cutover, 8× traffic spikes, spend down 34%.
Zero downtime8× scale−34% cost
Real-time ERP ↔ Shopify sync for 200k SKUs
Challenge
4-hour inventory delays, daily overselling.
Solution
Event-driven Kafka pipeline, webhook fan-out, idempotent workers.
Outcome
Inventory syncs in under 3 seconds across all channels.
<3s sync0 oversells200k SKUs
FAQ
Questions, Answered
We work with AWS, Google Cloud Platform (GCP), and Microsoft Azure. Our team holds certifications across all three platforms and will recommend the best fit based on your workload, budget, and team expertise.
Yes. We've integrated with Stripe, HubSpot, Salesforce, Slack, Twilio, QuickBooks, Shopify, and hundreds of custom APIs. If the API has documentation, we can build a reliable, production-grade integration.
Absolutely. We handle lift-and-shift migrations, re-architecting monoliths to microservices, and hybrid cloud setups. Every migration includes a detailed runbook, rollback plan, and zero-downtime cutover strategy.
We implement OAuth 2.0 / JWT authentication, API key rotation, rate limiting, IP whitelisting, encryption in transit and at rest, and full audit logging. All integrations follow OWASP best practices.
Yes. We design, build, and document custom REST and GraphQL APIs for your product, including versioning, SDK generation, interactive docs (OpenAPI), and developer portals for your partners.
Every project is different. After a free 30-minute discovery call, we provide a fixed-scope quote within 48 hours. Typical integration projects range from $15k–$150k depending on complexity and number of systems.
A single API integration typically takes 2–4 weeks. A full cloud migration or multi-system integration project takes 6–16 weeks. We break every project into 2-week sprints with demos at the end of each sprint.
Yes. We offer ongoing managed services including 24/7 monitoring, incident response, cost optimization, and infrastructure updates. You can choose from basic monitoring to full managed operations.
Let's build together
Ready to Get Started?
Schedule a free 30-min consultation. We'll review your goals and ship a fixed-scope quote within 48 hours.
No-obligation discovery call
NDA on request
Reply within 24h