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WSO2 API Manager Reviews

Vendor: WSO2
4.0 out of 5
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What is WSO2 API Manager?

WSO2 API Manager provides a flexible, open-source platform for API management, focusing on scalability, containerization, and ease of use in API publication, management, and lifecycle processes.

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WSO2 API Manager is the #9 ranked solution in top API Management solutions. PeerSpot users give WSO2 API Manager an average rating of 8.0 out of 10. WSO2 API Manager is most commonly compared to Informatica Intelligent Data Management Cloud (IDMC): WSO2 API Manager vs Informatica Intelligent Data Management Cloud (IDMC). WSO2 API Manager is popular among the large enterprise segment, accounting for 60% of users researching this solution on PeerSpot. The top industry researching this solution are professionals from a financial services firm, accounting for 18% of all views.
Buyer's Guide
WSO2 API Manager
January 2026
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WSO2 API Manager mindshare

As of February 2026, the mindshare of WSO2 API Manager in the API Management category stands at 4.3%, down from 4.6% compared to the previous year, according to calculations based on PeerSpot user engagement data.
API Management Market Share Distribution
ProductMarket Share (%)
WSO2 API Manager4.3%
Microsoft Azure API Management14.7%
Amazon API Gateway12.1%
Other68.9%
API Management

PeerResearch reports based on WSO2 API Manager reviews

TypeTitleDate
CategoryAPI ManagementFeb 8, 2026Download
ProductReviews, tips, and advice from real usersFeb 8, 2026Download
ComparisonWSO2 API Manager vs Microsoft Azure API ManagementFeb 8, 2026Download
ComparisonWSO2 API Manager vs Amazon API GatewayFeb 8, 2026Download
ComparisonWSO2 API Manager vs ApigeeFeb 8, 2026Download
Suggested products
TitleRatingMindshareRecommending
Informatica Intelligent Data Management Cloud (IDMC)4.00.9%92%214 interviewsAdd to research
Microsoft Azure API Management3.914.7%91%83 interviewsAdd to research
 
 
Key learnings from peers
Last updated Feb 2, 2026

Valuable Features

WSO2 API Manager's most valued attributes include open-source flexibility, API lifecycle management, and scalable architecture. Users praise its user-friendly interface, robust API security, and extensive integration capabilities. The platform supports containerization, enabling efficient scaling. Logging and troubleshooting functionalities enhance usability. Users benefit from versatile authentication methods, customizable features, and comprehensive documentation. Its ability to integrate with multiple back-end systems and manage APIs effectively positions it as an advantageous choice for organizations needing robust API management solutions.
  • "WSO2 API Manager has everything that any API Manager product could have."
  • "The capability to define processes and seamless integration with APIs enhances our operations."
  • "The most beneficial feature of WSO2 API Manager is its capability to use Swagger to define and then populate the API."

Room for Improvement

Users indicate that WSO2 API Manager's interface is outdated and complicated, with difficulties in navigation and usability. There are challenges with integration, installation complexity, and insufficient documentation, which hinders effective use, especially for those on open-source versions. Customization requires technical expertise, and there are concerns about pricing and licensing. Security and concurrency improvements are also desired. Some users experience issues with support and lack of comprehensive community resources, which complicates troubleshooting and implementation.
  • "We have encountered some concerns with concurrency. Our integrations do not handle high-volume transactions, and when benchmarking, some issues arose with concurrent testing."
  • "Dashboards for application monitoring of the APIs would be beneficial, allowing us to check for faulty APIs."
  • "WSO2 API Manager could improve by adding external API security features, which is one area where there is room for enhancement. Internally, API security is strong, and all other necessary features are already available. It has a solid marketplace, supports both Docker and standalone setups, and offers great enterprise integration. The developer portal has greatly improved the user experience, making it simple and user-friendly wherever we’ve implemented it. Overall, it’s not as complicated as other API gateways."

ROI

WSO2 API Manager offers a comprehensive feature set in its open source version, providing flexibility and extensibility. Many find it to be a cost-effective choice with a high return, especially when compared to other products with substantial licensing fees. It enhances operational efficiency and reduces costs by streamlining processes and avoiding code duplication. Users value the technical and human support they receive, which contributes significantly to their return.

Pricing

WSO2 API Manager offers both an open-source, cost-free version and a subscription-based enterprise option. The open-source version is popular for being affordable and competitive. Enterprise pricing follows a subscription model based on core usage, including perks like pre-production environments and disaster recovery options. Some users find the subscription reasonable, while others view it as costly, especially for extensive implementations. Pricing perceptions vary based on organizational needs and feature requirements.
  • "The challenge is the increasing pricing, which has led some customers to consider alternatives, like using Spring Boot solutions instead. The rising costs, especially as cores and usage increase, have been a concern, prompting some to migrate to other products."
  • "As far as I'm aware, the costs are not minimal but satisfactory."
  • "WSO2 API Manager is an open-source solution."

Popular Use Cases

WSO2 API Manager is primarily used for API management, integration, and security in various contexts such as digital hubs, open banking, and telecom. Organizations deploy it for external API exposure, microservice publication, and integration with third-party REST APIs. It also facilitates digitalization, enterprise integration, and provides an API gateway. This management tool is utilized for orchestrating service calls, converting SOAP to REST, and supporting enterprise-level API functionalities.

Service and Support

WSO2 API Manager's customer service receives mixed feedback. Many users find technical support helpful, especially with subscriptions, providing prompt responses and effective resolutions. However, some express dissatisfaction due to slow response times and difficulty accessing support without enterprise support. Community forums and documentation are valuable for open-source users. Users appreciate the assistance from dedicated engineers but note limited resources for training and support. Documentation quality is generally viewed positively, aiding troubleshooting efforts.

Deployment

Some users find WSO2 API Manager's initial setup straightforward and easy, particularly those with technical skills. However, others describe it as complex, requiring coordination of multiple components. Time required varies significantly, with some deployments completed in hours, while others take weeks. Deployment complexity generally depends on the specific configuration needs, project requirements, and resources available. The availability of templates and a well-documented setup process aids in simplifying the task for many.

Scalability

WSO2 API Manager is generally scalable, but some users note challenges. It offers flexibility, can be containerized, and integrated with orchestration tools. Many report using it successfully with varied user counts and in diverse environments. Horizontal and vertical scaling is possible, and some rate it highly for scalability. Reports mention effective handling of traffic with regular updates to support increased demand. However, some users find manual provisioning cumbersome, particularly with complex configurations.

Stability

WSO2 API Manager is mostly considered stable with positive feedback regarding reliability and robustness. Users mention occasional issues with memory and updates, especially in open-source versions, causing resource consumption concerns. Mainly due to Tomcat architecture, it fits well in diverse environments. Although some bugs are expected, many find it stable, with ratings often between seven to nine out of ten for stability. Proper deployment and testing processes are advised to avoid potential problems.
These insights are based on the in-depth reviews provided by peers to help you make a better buying decision.
Download our WSO2 API Manager Buyer's Guide for additional reliable information.

Review data by company size

By reviewers
Company SizeCount
Small Business11
Midsize Enterprise6
Large Enterprise19
By reviewers
By visitors reading reviews
Company SizeCount
Small Business165
Midsize Enterprise117
Large Enterprise421
By visitors reading reviews

Top industries

By visitors reading reviews
Financial Services Firm
18%
Computer Software Company
11%
Manufacturing Company
7%
Comms Service Provider
6%
Healthcare Company
5%
Government
5%
Insurance Company
4%
University
4%
Educational Organization
3%
Wholesaler/Distributor
3%
Transportation Company
3%
Media Company
3%
Outsourcing Company
3%
Marketing Services Firm
3%
Energy/Utilities Company
3%
Retailer
2%
Real Estate/Law Firm
2%
Construction Company
2%
Consumer Goods Company
1%
Pharma/Biotech Company
1%
Legal Firm
1%
Logistics Company
1%
Performing Arts
1%
Aerospace/Defense Firm
1%
Non Profit
1%
Hospitality Company
1%
International Affairs Institute
1%

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Learn more about WSO2 API Manager

With robust security and strong integration capabilities, WSO2 API Manager supports microservices and API orchestration. Its advanced features include OAuth2 and identity access management, enhancing deployment, development, and operational efficiency. While praised for adaptability, users suggest improvements in installation, user interface simplicity, third-party integration, and documentation. Enhanced support, security, and expanded monitoring are also recommended alongside better module coordination and navigation. Performance optimization and refined caching mechanisms are valuable areas for growth.

What are the key features of WSO2 API Manager?

  • Flexibility and Open-Source Customization: Tailored API management for diverse business needs.
  • Scalability: Efficiently handles growing API demand and workloads.
  • Containerization: Simplifies deployment in cloud environments.
  • Robust Security: Protects API calls and ensures safe data exchange.
  • Real-Time Monitoring: Provides insights into API performance and usage.

What benefits should users expect in reviews?

  • Efficient API Management: Streamlines API lifecycle from publication to retirement.
  • Improved Integration: Works seamlessly with microservices and identity services.
  • Operational Efficiency: Enhances development and deployment processes.
  • Data Security: Secures sensitive information through advanced protocols.

Enterprises utilize WSO2 API Manager for managing APIs in sectors such as banking, telecom, and SmartCity projects. Serving as a digital hub, it enables efficient API publication for internal and external users, ensuring effective API documentation and version control. Its flexibility in API management supports digital integration and service orchestration.

WSO2 API Manager customers

1. eBay 2. StubHub 3. Cisco 4. Verizon 5. T-Mobile 6. Vodafone 7. Orange 8. BT Group 9. Telstra 10. Deutsche Telekom 11. Swisscom 12. AT&T 13. Sprint 14. Telefonica 15. O2 16. British Airways 17. Lufthansa 18. Emirates 19. Qatar Airways 20. Etihad Airways 21. Air France 22. KLM 23. American Express 24. Visa 25. Mastercard 26. PayPal 27. Western Union 28. Citibank 29. HSBC 30. Barclays 31. Santander 32. Goldman Sachs

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WSO2 API Manager Reviews Summary
Author infoRatingReview Summary
Manager, Integration Technical Delivery at United Delta4.0I've used WSO2 API Manager for system integration and found it feature-rich, stable, and scalable. Installation is easy, support is solid, and it meets my needs, though improvements in support responsiveness and Micro Integrator complexity handling are welcome.
Senior Principal Architect at 6d Technologies4.0We use WSO2 API Manager to integrate telecom products with third-party REST APIs by orchestrating service processes. Its API key-based security and process definition capabilities are valuable, though concurrency issues need addressing to handle high-volume transactions efficiently.
IT Engineer at Reliance Industries Ltd4.0I had a positive experience with WSO2 API Manager due to its ease of API deployment, CORS management, and robust analytics. However, it lacks flexibility compared to Apigee, which offers greater customization options. Human support provided excellent value.
Head Of ITG Shared Applications Division at PSBank4.5We use WSO2 API Manager for our microservices and APIs both internally and externally. Its ability to use Swagger, robust security features, and cost-saving advantages by creating one API for multiple channels are invaluable, though monitoring capabilities could be improved.
Senior Solution Architect at Hewlett Packard Enterprise5.0I first used WSO2 API Manager with Wipro for banks, Telcos, and government clients in India to create an API marketplace. It excels in internal API security and ease of use, though lacking in external API security features.
Co-Founder and Chief Technology Officer at Asante Digital Group4.0I use WSO2 API Manager to expose and manage APIs securely, with features like version control and documentation. The tool offers high ROI due to cost-effective licensing, though pricing flexibility could improve. It's robust despite occasional forced integrations.
Senior Manager at Wavenet International Pvt Ltd4.0We use WSO2 API Manager for reselling and integration, finding features like blacklisting and whitelisting helpful. We integrate additional features ourselves and create custom dashboards. Pricing varies, posing challenges, but the solution saves us time.
Technical Architect at BORN Group3.5I use WSO2 API Manager as an enterprise application across multiple global locations, integrated with front-end and back-end systems. While it's effective, we faced challenges with mTLS security implementation, needing improved documentation and support from the WSO2 team.