OpenLegacy vs WSO2 API Manager comparison

OpenLegacy and WSO2 are both solutions in the API Management category. OpenLegacy is ranked #34, while WSO2 is ranked #9 with an average rating of 8.0. OpenLegacy holds a 0.9% mindshare in APIM, compared to WSO2’s 4.2% mindshare. Additionally, 80% of OpenLegacy users are willing to recommend the solution, compared to 95% of WSO2 users who would recommend it.

OpenLegacy

Read 5 OpenLegacy reviews

905 Views
652 Comparison Views

80% willing to recommend

WSO2 API Manager

Read 42 WSO2 API Manager reviews

5,123 Views
4,969 Comparison Views

95% willing to recommend

OpenLegacy

WSO2 API Manager

Comparison Buyer's Guide

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Executive SummaryUpdated on Nov 16, 2025

OpenLegacy and WSO2 API Manager are competing in the API management space. OpenLegacy has the upper hand in pricing and support, whereas WSO2 API Manager dominates with its comprehensive features.

Features: OpenLegacy excels in legacy integration with capabilities that simplify API creation and streamline processes. WSO2 API Manager offers robust security features, extensive customization, and emphasizes API governance, providing a rich feature set for detailed API management.

Room for Improvement: OpenLegacy could enhance its feature set to match WSO2's extensive offerings and refine its integration capabilities. WSO2 API Manager may improve by simplifying its complex deployment process, optimizing support to handle its expansive feature set, and enhancing performance to improve user experience.

Ease of Deployment and Customer Service: OpenLegacy is noted for straightforward deployment and responsive customer service, making it accessible for organizations prioritizing ease of use. WSO2 API Manager, with its flexible deployment, may demand more technical resources due to its complexity, though it offers a broad scope for various environments.

Pricing and ROI: OpenLegacy is competitive in setup costs and provides a rapid return on investment, making it attractive for those looking to simplify processes. WSO2 API Manager, despite a higher initial investment, offers substantial long-term value through its rich features, suitable for businesses investing in extensive API management capabilities.

To learn more, read our detailed OpenLegacy vs. WSO2 API Manager Report (Updated: March 2026).

Buyer's Guide

OpenLegacy vs. WSO2 API Manager

March 2026

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Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:

Categories and Ranking

OpenLegacy

Ranking in API Management

34th

Average Rating

7.6

Reviews Sentiment

6.2

Number of Reviews

Ranking in other categories

AI Software Development (76th)

WSO2 API Manager

Ranking in API Management

9th

Average Rating

8.0

Reviews Sentiment

6.9

Number of Reviews

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of March 2026, in the API Management category, the mindshare of OpenLegacy is 0.9%, up from 0.3% compared to the previous year. The mindshare of WSO2 API Manager is 4.2%, down from 4.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.

API Management Mindshare Distribution
Product	Mindshare (%)
WSO2 API Manager	4.2%
OpenLegacy	0.9%
Other	94.9%

API Management

Featured Reviews

reviewer1042905

VP, Chief Enterprise Integration Architect at a financial services firm with 10,001+ employees

The biggest advantage is how simple the technology was.

I'd like to see OpenLegacy develop its low-code/no-code (LCNC) solutions. They've expanded somewhat their horizons for integration beyond mainframe CICS, which is their sweet spot. They have some tooling in that area, but it's not as good as it needs to be. OpenLegacy handles the bread-and-butter TP monitoring stuff, but I am working for one of the six banks in the United States still using the Hogan mainframe, which has a slightly proprietary mechanism. But OpenLegacy currently doesn't have a connector for Hogan. So it would help if they could build one. That would appeal to financial institutions that still use Hogan, like US Bank, Wells Fargo, KeyBank, and Vanguard.

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Merna Muawad

Manager, Integration Technical Delivery at United Delta

Middleware integration has become smoother and manages API lifecycles and scopes effectively

Regarding WSO2 API Manager, I have no drawbacks or areas for improvement. However, regarding the Micro Integrator, I had some issues while developing complex services because it was mainly designed to be used for simple services, not complex ones. While using complex services, I encountered some issues. I communicated this with WSO2, and they released other products that solved everything related to my concern. These products were released before my concern was raised. When I explored them, they were pretty good, and I did not see the same issues I had experienced. WSO2 is enhancing themselves, and their products are fine. The previous concern was about the previous product, so it is resolved now since there are new products available. I would like WSO2 to improve quality or response time in support, or both.

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Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:

Pros

"Without OpenLegacy, it would take us several months to create the same services."

"Using OpenLegacy, the exposure of services is far easier and quicker. In many cases, exposure of services requires just a few clicks and takes only minutes. In very complex cases, it still only takes half a day. Without OpenLegacy, it would take us several months to create the same services."

"OpenLegacy provides a way to go from the outside world to the legacy mainframe, to move the old standard application to a REST API application. New digital services can be created in a few clicks and this can be done easily by COBOL programmers."

"OpenLegacy opens the door to connect modern web products to our old legacy system."

"It is possible to connect a service to a mainframe program or back transaction in a matter of minutes or hours at the most."

"It is possible to solve larger legacy API issues on an enterprise level with this product."

"The product has helped our business by allowing us to become more efficient in data handling."

"OpenLegacy produces a war file which includes everything you need to deploy a Tomcat server."

More OpenLegacy pros

"A complete integration suite and a good platform."

"The solution is open source and easy to configure."

"Based on the information I have, the solution's most valuable feature is its capability of implementing custom solutions."

"WSO2 is very easy to install and has all the main functionalities that we are looking for when we want to put up the management solution like a friendly UI tool, SOAP to REST API publication options, plugin extensions, adding OAuth 2.0 to the operations, installing on-premise, handling multiple versions of the same API, and importing and exporting Swagger."

"WSO2 API Manager provides OAuth2 token capabilities that our customers use to interact, onboard new customers, and provide approvals whenever a customer is onboarded."

"We use the vanilla version of the WSO2 API Manager and integrate additional features ourselves. The basic features of the API Manager, such as blacklisting and whitelisting, are very helpful. We also created dashboards."

"API management lifecycle is the most valuable."

"WSO2 API Manager is open-source, which offers a range of features not found in other open-source API tools."

More WSO2 API Manager pros

Cons

"I'd like to see OpenLegacy develop its low-code/no-code (LCNC) solutions. They've expanded somewhat their horizons for integration beyond mainframe CICS, which is their sweet spot. They have some tooling in that area, but it's not as good as it needs to be."

"I would like to see SSL out-of-the-box. OpenLegacy certainly does SSL, but it was not the default for our use case. We are currently working with OpenLegacy to cross the SSL bridge and suspect that most users will want to do the same."

"I would like to see SSL out-of-the-box. OpenLegacy certainly does SSL, but it was not the default for our use case."

"Customer support for the product is slow and not very good. It makes using the product difficult if you need help quickly."

"The pricing of the solution could be more flexible and allow for once-off payment versus annual licensing. This would be more appealing to companies in Latin America."

"They've expanded somewhat their horizons for integration beyond mainframe CICS, which is their sweet spot. They have some tooling in that area, but it's not as good as it needs to be."

"We would also be more than happy if the product had the option to work in the opposite direction – the ability to consume REST/SOW services in the outer world from the mainframe."

"Debugging and logging for programmers could be better."

More OpenLegacy cons

"API Manager is not easy to scale because some of its components lack scalability. It's a difficult point. Especially because companies are so cloud-based these days, microservice scalability is a major thing."

"I wouldn't actually recommend this to anyone. Personally, I wouldn't recommend this solution at all."

"Integration is an area that needs to be improved."

"The professional support and licensing aspects of WSO have been a challenge."

"I can say that user management is not really flexible. So, if I want to create 1,000 store users, I can't do it as a publisher."

"In WSO2 API Manager, we had little flexibility and were restricted to a specific software or tool."

"The one complaint I get from our business team is the same: they find it not that user-friendly and this makes it more difficult for them to use."

"The support system is not that great."

More WSO2 API Manager cons

Pricing and Cost Advice

"The pricing of the solution could be more flexible and allow for once-off payment versus annual licensing. This would be more appealing to companies in Latin America."

"WSO2 API Manager is a low-cost solution. It is one of the most affordable solutions."

"I am using the free version."

"There is a subscription-based pricing structure and also the open-sourced version available."

"I think the other competitors that are providing the same solution are quite expensive. WSO2 API Manager is quite cheap."

"It is an open-source product."

"WSO2 API Manager is an open-source solution."

"WSO2 API Manager is a costly solution, and its pricing is not competitive enough compared to other products."

"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."

More WSO2 API Manager pricing and cost advice

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Top Industries

By visitors reading reviews

Construction Company

27%

Insurance Company

12%

Financial Services Firm

11%

Comms Service Provider

Financial Services Firm

18%

Computer Software Company

11%

Comms Service Provider

Manufacturing Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

No data available

By reviewers
Company Size	Count
Small Business	15
Midsize Enterprise	7
Large Enterprise	21

Questions from the Community

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What needs improvement with WSO2 API Manager?

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What is your primary use case for WSO2 API Manager?

My major use cases for WSO2 API Manager are mainly for system integration between multiple layers because we are working on the middleware layer between the systems.

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What advice do you have for others considering WSO2 API Manager?

The thing that I hoped WSO2 had in their integration products, not WSO2 API Manager, was AI agents, and now they have this. I believe at this stage, they have the things that the market is going th...

See all answers

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MuleSoft API Manager vs WSO2 API Manager

Compared 8% of the time

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Compared 6% of the time

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Product Reports

Buyer's Guide

OpenLegacy

March 2026

Download OpenLegacy product report

Buyer's Guide

WSO2 API Manager

March 2026

Download WSO2 API Manager product report

Overview

OpenLegacy helps organizations quickly launch innovative digital services by extending their core back-end systems to the web, mobile and cloud in days or weeks versus months. Our microservice-enabled API integration and management software quickly reduces project backlog by automating and accelerating microservices and API creation, deployment, testing and management from core applications, mainframes and databases. Together, business and IT teams can quickly, easily and securely meet consumer, partner or employee demands for digital services without modernizing or replacing core systems, and without special programming skills or invasive changes to existing systems and architectures. OpenLegacy is designed for ongoing management of microservices APIs and is based on open standards, so our software plays nice with your current technology stack and supports agile, DevOps and continuous development. Learn why leading companies choose OpenLegacy at www.openlegacy.com.

OpenLegacy

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.

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

Sample Customers

Many of openLegacy's global customers are among the Global 100 companies. Review case studies in these industries: Agriculture, Airport Authority, Automotive, Auto, Finance, Insurance, Government, Healthcare, Manufacturing, and Retailwww.openlegacy.com/case-studie...

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

Buyer's Guide

OpenLegacy vs. WSO2 API Manager

March 2026

Free Report: OpenLegacy vs. WSO2 API Manager

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