API and integration modernisation
Open core systems to mobile apps, partners, regulators and AI through secure, managed APIs and event streams, without rebuilding the systems behind them.
Connect what you have to what comes next
Organisations are often held back less by any one application than by the way their applications talk to each other: shared databases, nightly file transfers, point-to-point links nobody dares change, and an integration bus that every project has to queue for.
We replace that tangle with managed APIs and event streams: clear contracts, central security, visible usage, and the freedom to change one system without breaking five others.
When it fits
01
New channels need live data
Mobile apps, agent banking, citizen portals and partner integrations can't wait for overnight batches.
02
Every link is point to point
Each new connection is a project, and a change in one system breaks others in ways nobody predicted.
03
The bus has become a bottleneck
One team, one release train and a licence renewal stand between every project and its integrations.
04
Others expect APIs
Partners, regulators and other agencies increasingly want to exchange data through APIs rather than files.
What we do
API strategy and design
API contracts in OpenAPI, versioning rules and a catalogue that teams can discover and reuse.
API management
Gateways with security, rate limits, analytics and a developer portal, using WSO2 or your cloud provider's service.
Wrapping legacy systems
APIs in front of core and legacy systems, so new channels can use them without any change inside.
Event streaming
Apache Kafka and Confluent publish business events in real time, so the systems that produce them and the systems that use them stay independent.
Change data capture
Stream changes out of legacy databases with Debezium, so new services stay in step without touching old code.
API security
OAuth 2.0 and OpenID Connect, mutual TLS, scopes per consumer and audit trails, joined to your identity platform.
Coexistence
Change the systems without breaking the consumers
Once apps and partners talk to an API instead of a system, the system behind it can be modernised or replaced without them noticing. The API layer becomes the stable contract while everything behind it moves.
- Consumers
- Mobile and web apps, partners and AI tools.
- The API gateway
- One managed, secured way in for every consumer.
- The event stream
- Business events published in real time for any system that needs them.
- Systems behind the layer
- Replaced one at a time, as the legacy application turns blue, while requests keep flowing.
How we modernise integration
01
Map the integrations
Catalogue every interface, file transfer and shared table, and who depends on each one.
02
Design the target
Define the API and event model, the gateway and security pattern, and the order of migration.
03
Build and migrate
Build the APIs and streams, move consumers from old interfaces to new one at a time, and monitor both.
04
Govern and operate
Run the gateway and event platform, track usage and errors, and manage versions and retirements.
What you get
- An integration inventory and dependency map
- API and event design standards
- An API gateway and developer portal
- APIs and event streams for priority systems
- Security policies and monitoring dashboards
- A plan to retire old interfaces
Platforms and tools
- WSO2 API Manager
- WSO2 Micro Integrator
- Apache Kafka
- Confluent Platform
- Debezium
- Apache Camel
- Keycloak
- OpenAPI and AsyncAPI
- gRPC
- F5 and NGINX
- AWS API Gateway
- Azure API Management
Questions about APIs and integration
Do we need to replace our ESB?
Not necessarily. We often run the existing bus alongside an API gateway and event platform, move integrations as they need to change, and retire the bus once it's empty.
Can you build APIs for a system we don't have the source code for?
Usually, yes: through its database, files, message queues or the vendor's own interfaces, wrapped behind a managed API.
How do you secure APIs for external partners?
With OAuth 2.0 client credentials or mutual TLS, scopes per partner, rate limits, and logs that show who called what and when.
Is event streaming only for large organisations?
No. A small Kafka cluster or a managed service carries a lot of traffic. We size it to your volumes and start with the events that matter most.
Open your core systems safely
Tell us which systems need to connect and who needs to use them. We'll map the integrations and suggest where an API layer would pay off first.