WSO2 Micro Integrator review
A developer-focused hybrid integration runtime with visual tools, code, and custom connectors.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
WSO2 Micro Integrator is an open-source, low-code integration runtime for connecting APIs, applications, data sources, and events. It is aimed primarily at developers and integration teams building centralized ESB-style or decentralized microservices architectures. Visual and code-based development, REST API endpoints, webhooks, event triggers, data transformation, and Enterprise Integration Patterns support give teams multiple ways to design integrations. AI-assisted integration development is also included.
Pricing is organized around a 30-Day Free Trial, Growth, and Enterprise. The trial provides full product access and iPaaS deployment without requiring a credit card. Growth adds full product access and iPaaS deployment, with no contracts required and monthly payment by credit card. Enterprise includes unlimited usage, full product access, flexible deployments, and custom contract terms. Growth and Enterprise require contact with sales. The product supports web, Windows, macOS, Linux, API, and self-hosted environments, with deployment options spanning on premises, private cloud, public cloud, hybrid environments, and WSO2’s SaaS offering.
Its strongest fit is for teams that need integration depth rather than a narrow point-to-point automation tool. Prebuilt connectors cover Slack, Salesforce, Google Sheets, MySQL, PostgreSQL, Microsoft SQL Server, Kafka, RabbitMQ, AWS Lambda, and Azure Functions, while custom connector development extends the platform to additional systems. Reusable libraries, functions, data mappers, and connections can support repeatable delivery, and logs, metrics, and runtime health provide observability. Choose Micro Integrator when open-source availability, self-hosting, hybrid deployment, and developer control matter. Teams seeking a simpler no-code workflow builder may prefer a more narrowly focused option.
WSO2 Micro Integrator pros and cons
- Where it wins
- Visual and code-based development supports different integration workflows.
- Self-hosted, cloud, hybrid, and SaaS deployment options are available.
- Custom connectors, REST APIs, webhooks, and transformation support broad use cases.
- Where it doesn't
- Growth and Enterprise plans require contact with sales.
- There is no perpetual free plan; the available trial lasts 30 days.
- Its developer and integration-team focus may not suit simple no-code projects.
WSO2 Micro Integrator fact sheet, pricing and score →
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