API Strategy and Architecture
System assessment, workflow analysis, dependency mapping, interface planning, versioning strategy and phased delivery roadmap.
Build secure, scalable APIs that connect products, data and business-critical systems.
Logiciel provides API development services for companies building digital products, modernizing applications and connecting complex system environments. From API strategy and architecture to custom API development, third-party integration, testing, security and managed operations, we help teams create reliable interfaces that improve interoperability, reduce manual work and support future product growth.
Modern digital products depend on reliable communication between applications, services, data sources and external platforms.
We embed senior API engineers into your roadmap while your organization retains ownership of the product, source code, data, infrastructure and technical decisions.
An API development roadmap aligned with product, integration and modernization priorities.
Senior engineers matched to your applications, data sources and technology environment.
Clear API architecture, reusable interfaces and maintainable data contracts.
Secure authentication, authorization, encryption and access-control foundations.
Reliable integrations with internal applications and third-party platforms.
Automated functional, integration, contract, performance and security testing.
Monitoring, documentation, versioning practices and an operating model your team can maintain after launch.
We cover the complete API lifecycle. Architecture, data contracts, integrations, security, testing and production operations need to work together.
System assessment, workflow analysis, dependency mapping, interface planning, versioning strategy and phased delivery roadmap.
Custom interfaces designed around your product capabilities, business workflows, data requirements and integration environment.
RESTful and GraphQL APIs with structured endpoints, schemas, authentication, error handling and maintainable access patterns.
Connections across CRM, ERP, identity, payment, communication, analytics and other business-critical platforms.
Modern API layers around established applications so they can connect with new products without an immediate full rebuild.
Authentication, authorization, rate controls, gateway policies, automated testing, monitoring and production hardening.
Interfaces supporting controlled AI workflows, followed by monitoring, maintenance, version management and continuous improvement.
Dedicated API Engineering Squad
A standing team of API architects, backend developers, QA specialists, cloud engineers and integration experts embedded into your roadmap.
API Advisory and Team Extension
Senior API and integration specialists who strengthen your internal backend, platform, quality, cloud or engineering teams.
Outcome-Based API Development
Fixed-scope engagements with defined outcomes, milestones and success criteria for APIs, third-party integrations, legacy enablement or API modernization.
Detailed assessment of applications, workflows, data sources, integrations, dependencies, security requirements and technical risks.
Secure custom APIs with structured endpoints, schemas, authentication, validation, error handling, documentation and versioning.
Integration with CRM, ERP, identity, payment, communication, analytics, customer and partner platforms.
External API integration and API enablement for established applications, including retries, rate limits, transformation and failure handling.
Service boundaries, communication patterns, routing, traffic management, authentication, rate limiting and centralized policy enforcement.
Access controls, encryption, secret management, contract testing, performance validation, logging, observability and resilience.
Ongoing monitoring, incident response, integration maintenance, version management, performance optimization and continuous API development.
Patterns from our API, backend, cloud and platform engineering teams that help companies move from fragile integrations to reusable, reliable interfaces.
API Engineering Operating Model
How we structure API ownership, design standards, version governance, quality gates, monitoring, documentation and continuous improvement.
API and Integration Readiness Framework
A practical approach to ranking API priorities by product value, system dependency, data sensitivity, integration complexity, usage scale and operational risk.
1. System and Workflow Diagnostic
We assess applications, users, business workflows, data flows and external systems to identify dependencies, constraints and technical risks.
2. API and Data Contract Design
We define endpoints, schemas, authentication, permissions, errors, versioning and expected system behavior before implementation.
3. API and Integration Engineering
We build APIs, gateway capabilities and integration services through visible sprint cycles with regular demonstrations and technical reviews.
4. Quality, Security and Production Hardening
We test functionality, performance, permissions, failures and external responses while strengthening logging, monitoring, resilience and rate controls.
5. API Engineering Operating Model
We provide documentation, versioning practices, release procedures, runbooks and ownership guidance so your team can operate and extend the API environment confidently.
Connect applications, data and business systems with secure APIs built by a senior engineering team that works inside your existing delivery model.
API development services can include API strategy, architecture, custom API development, third-party integrations, authentication, automated testing, documentation, deployment and managed operations.
Custom API development involves building interfaces specifically around an organization’s products, data, workflows and integration requirements.
An API development company designs, builds, tests, deploys and maintains interfaces that allow applications and systems to exchange data and perform defined actions.
Yes. Logiciel can integrate payment, identity, CRM, ERP, communication, analytics and other third-party services into existing applications.
Yes. Logiciel can introduce API layers, replace point-to-point connections and improve data contracts without requiring an immediate full-platform rebuild.
Logiciel can implement authentication, authorization, encryption, rate controls, secret management, audit logging and secure development practices based on product requirements.
Yes. Logiciel can implement automated functional, integration, contract, performance and security testing for critical API workflows.
Logiciel works as an embedded engineering partner. Your organization retains ownership of the APIs, source code, data, infrastructure and technical decisions.
Your organization retains full ownership of the source code, API specifications, automated tests, infrastructure configurations, documentation and other agreed deliverables.
Yes. Ongoing support can include monitoring, incident response, integration maintenance, version management, performance optimization and continuous API development.