WSO2 Integrator
Enterprise service bus (ESB) software
On-premise data integration software
Data integration tools
Cloud data integration software
- Features
- Ease of use
- Ease of management
- Quality of support
- Affordability
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What is WSO2 Integrator
WSO2 Integrator is an integration runtime used to connect applications, services, and data sources through mediation, routing, transformation, and protocol bridging. It is commonly deployed by integration teams to implement API-to-backend orchestration, legacy system connectivity, and event/message-based integration patterns in on-premises or cloud environments. The product is built around an ESB-style mediation engine and supports containerized deployments alongside traditional server installations. It is typically used where organizations need centralized integration flows with governance and operational controls.
Broad protocol and connector support
WSO2 Integrator supports common enterprise integration protocols and patterns such as HTTP/S, SOAP, REST, JMS, and file-based integration, along with transformation and mediation capabilities. This breadth helps teams integrate heterogeneous systems without writing all plumbing code from scratch. It also supports common integration constructs like routing, enrichment, and error handling that are expected in ESB-class products.
Flexible deployment options
The runtime can be deployed on-premises, in VMs, or in container platforms, which fits hybrid integration programs. This flexibility supports different operational models, from centralized integration servers to more distributed deployments. It can be aligned with CI/CD practices by packaging integration artifacts and promoting them across environments.
Strong mediation and orchestration model
The product provides an ESB-style mediation layer for composing and orchestrating service calls, applying policies, and transforming payloads. This is useful for API-to-backend orchestration and for modernizing legacy interfaces without changing underlying systems. It also supports reusable integration components and centralized management patterns that are common in enterprise integration suites.
ESB-centric architecture tradeoffs
An ESB-style central mediation layer can become a bottleneck or single point of operational focus if not designed for scale and resilience. Organizations moving toward decentralized, event-driven, or lightweight integration approaches may find the model heavier than needed for simple point-to-point use cases. This can increase governance and runtime management overhead compared with more narrowly scoped integration services.
Operational complexity at scale
Running the platform in production typically requires careful configuration of clustering, monitoring, logging, and secure secret management. Teams may need additional tooling and practices to manage multiple environments and many integration flows. Compared with fully managed integration services, more responsibility remains with the customer for uptime, patching, and capacity planning.
Learning curve for flow development
Developers and integration specialists often need time to learn the product’s mediation concepts, configuration model, and best practices for error handling and performance. Complex transformations and orchestration can require deeper platform knowledge to implement and troubleshoot effectively. This can slow initial delivery for teams without prior ESB or WSO2 experience.
Plan & Pricing
Pricing model: Pay-as-you-go / usage-based subscription (WSO2 Subscription tracks metrics such as number of APIs, integrations, transactions, processor cores, etc.).
Free tier/trial:
- Free (open-source) software: WSO2 Integrator (Enterprise Integrator / WSO2 Integrator runtimes) is published as open-source under Apache License 2.0 and does not carry licensing fees (community/downloadable edition).
- Commercial subscription (WSO2 Subscription) provides commercial distributions, updates, and support; subscription pricing is usage-based and provided via subscription/quote (no published flat plans for Integrator on the official site).
Example costs: Not published on the official WSO2 product or subscription pages for WSO2 Integrator. Official documentation describes a usage/core-based model but does not list public per-core or per-transaction prices for the Integrator product.
Discount/options: WSO2 notes discounts based on annual commitments and offers tailored/custom Enterprise plans; customers are asked to contact WSO2 for quotes and custom pricing.
Notes & official references: Pricing described as usage-based in WSO2 Subscription/service FAQ; product pages and announcements confirm the Integrator software is open-source and free to use but subscriptions (support/updates) are sold separately.
Seller details
WSO2 LLC
Santa Clara, CA, USA
2005
Private
https://wso2.com/
https://x.com/wso2
https://www.linkedin.com/company/wso2/
