API Development & System Integration Services
Robust REST and GraphQL APIs plus integrations with the third-party systems, payments and ERPs your business depends on.
Ascii-Core provides API development and system integration services from Casablanca, Morocco, helping businesses across Europe and the GCC connect their tools into a reliable, documented stack that scales.
Key Takeaways
- REST and GraphQL APIs connect the software tools, databases and platforms that power a business into a reliable, documented stack with a consistent data model.
- Every integration includes retries, idempotency keys, structured logging and alerting — integrations do not fail silently in production.
- ERP and legacy system integrations use adapter middleware that exposes data to modern applications without requiring replacement of core systems.
- Multi-market payment gateway integrations cover Stripe and regional providers for Morocco, Europe and the GCC, including multi-currency and local compliance.
- Ascii-Core delivers API development and system integration from Casablanca for clients across Europe and the GCC.
What is API & Integrations?
API development and system integration connects the software tools, databases and platforms that power a business into a coherent, reliable stack. Whether building a new REST or GraphQL API, integrating a payment gateway, connecting a legacy ERP or creating webhook-driven event pipelines, the goal is a single source of truth that all your systems trust.
Ascii-Core provides API development and integration services from Casablanca, Morocco, helping organisations across Europe and the GCC replace brittle point-to-point connections with clean, documented, monitored integrations that stay reliable at scale.
What holds companies back
We've seen these challenges across dozens of engagements. They're fixable.
- Systems that cannot share data
- Brittle, undocumented integrations
- Payment and ERP connections that fail silently
- No single source of truth
What we build
Production-grade api & integrations solutions designed around your specific context.
REST APIs
Clean, documented, versioned REST endpoints.
GraphQL
Flexible, typed APIs for complex front ends.
Webhook Integrations
Real-time event-driven connections.
Third-party APIs
Integrate the services you rely on.
Payment Gateways
Stripe, local gateways and reconciliation.
ERP Integrations
Connect ERP and legacy systems safely.
Use cases and outcomes
Real scenarios where we've delivered measurable results.
ERP to E-commerce Integration
Real-time sync of inventory, orders and pricing between ERP and online store — eliminating manual updates and overselling.
Payment Gateway Integration
Stripe and local payment gateway integration with subscription management, webhook handling and automated reconciliation.
CRM API Integration
Custom API layer connecting web forms, marketing tools and helpdesk into a unified CRM record — no more duplicate data.
Third-party Data Pipeline
Aggregating data from multiple external APIs into a central data store, normalised and refreshed on a reliable schedule.
Legacy System Modernisation
Building an API wrapper around a legacy system to expose its data to modern web and mobile applications without replacing it.
- 99%
- integration uptime
- 30h
- saved per week
- 25%
- lower integration costs
From kickoff to live system
A typical engagement runs 6–8 weeks. Here is what happens each week so you always know where things stand.
- Week 1
Discovery & Process Mapping
We map your goals, constraints and existing systems to define a clear, measurable scope.
↓ - Week 2
Architecture & Integrations
We design the technical blueprint — data flows, models, integrations and security controls.
↓ - Weeks 3–5
Development
We build in tight iterations with weekly demos so you see progress every step of the way.
↓ - Week 6
Deployment
We ship to production with monitoring, documentation and a smooth handover.
↓ - Week 7+
Optimisation
We monitor, tune and evolve the system as usage patterns emerge and needs grow.
Tools we use
We choose proven, production-tested technologies — not whatever is trending.
Results from similar projects
Real outcomes from clients with the same challenges you're facing.
Why choose Ascii-Core for api & integrations?
There are many agencies offering api & integrations services. Here is what makes Ascii-Core the right engineering partner for companies that need production systems — not prototypes.
- Every API ships with OpenAPI documentation, versioning strategy and structured error handling as standard.
- Retries, idempotency and real-time alerting ensure integrations behave predictably in production edge cases.
- Clients commonly reduce manual data synchronisation overhead by 30+ hours per week after integration.
- Legacy system wrappers built as adapters — modernise connectivity without replacing core ERP or CRM systems.
- Ongoing API maintenance, monitoring and version management available as a retainer after delivery.
Related services
Industries we serve
Tool comparisons
Not sure which approach is right? Read our unbiased comparisons related to api & integrations.
Common questions
Everything you need to know about our api & integrations services.
Connect your systems
Book a short call and we'll show you exactly how we'd approach your situation.
Reviewed by the Ascii-Core Engineering Team — specialists in AI engineering, workflow automation, product development and enterprise software architecture. Content reviewed regularly to reflect current technologies and implementation practices. · Updated June 2026