OpenLegacy vs WSO2 API Manager comparison

Why PeerSpot?

OpenLegacy and WSO2 are both solutions in the API Management category. OpenLegacy is ranked #32, while WSO2 is ranked #15 with an average rating of 8.3. OpenLegacy holds a 1.5% mindshare in APIM, compared to WSO2’s 3.0% 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

2,881 Views
1,757 Comparison Views

80% willing to recommend

WSO2 API Manager

Read 42 WSO2 API Manager reviews

6,970 Views
6,482 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: September 2026).

Buyer's Guide

OpenLegacy vs. WSO2 API Manager

September 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

32nd

Average Rating

7.6

Reviews Sentiment

6.2

Number of Reviews

Ranking in other categories

AI Software Development (62nd)

WSO2 API Manager

Ranking in API Management

15th

Average Rating

8.0

Reviews Sentiment

6.9

Number of Reviews

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of October 2026, in the API Management category, the mindshare of OpenLegacy is 1.5%, up from 0.5% compared to the previous year. The mindshare of WSO2 API Manager is 3.0%, down from 4.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.

API Management Mindshare Distribution
Product	Mindshare (%)
WSO2 API Manager	3.0%
OpenLegacy	1.5%
Other	95.5%

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.

Read full review

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.

Read full review

Quotes from Members

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

Pros

"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."

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

"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."

"The biggest advantage of OpenLegacy was how simple the technology was, and we were able to build out the OpenLegacy parts very quickly, putting together a couple hundred APIs in six months."

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

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

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

"Using mainframe programs (not screens), the OpenLegacy services do not require any changes by the mainframe programmers, thus reducing development cycles."

More OpenLegacy pros

"It's a good product."

"API compositions."

"It's very scalable, which is one of the best features."

"There are a lot of tools to help the manager. WSO2 is very easy to install. It has all the principal functionalities that you think about when you want to put up the management solution. It's a very friendly tool."

"WSO2 API Manager has everything that any API Manager product could have."

"I think the best part about WSO2 API Manager is that it's highly customizable because it's open-source."

"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."

"The main feature — the publication of the API, the management section — is great in general."

More WSO2 API Manager pros

Cons

"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."

"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."

"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."

"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."

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

"They don't have different URLs for administrators. They should have one in place like Kong."

"Based on our recent large scaling project, the latency needs to be improved."

"WSO2 API Manager could increase their security compliance."

"WSO2 API Manager can be improved a lot relating to usability. It is a bit heavy, and the workflow is more complicated in terms of API creation and publishing."

"The product hasn’t been updated for some time."

"WSO2 API Manager should improve its marketplace subscription model and documentation in order to reach a higher level in the market."

"The price and the complexities attached to the solution are two areas of concern where improvements are required."

"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."

"It is an open-source product."

"We use the open-source version — the free version."

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

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

"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."

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

"I am using the free version."

"For our projects, we found the pricing to be a little high."

More WSO2 API Manager pricing and cost advice

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Top Industries

By visitors reading reviews

Construction Company

23%

Comms Service Provider

16%

Financial Services Firm

14%

Manufacturing Company

11%

Financial Services Firm

18%

Outsourcing Company

10%

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

Comparisons

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Compared 17% of the time

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Compared 8% of the time

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Compared 8% of the time

MuleSoft API Manager vs OpenLegacy

Compared 7% of the time

Fiorano API Management vs OpenLegacy

Compared 7% of the time

More OpenLegacy Competitors

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Compared 12% of the time

Kong Gateway Enterprise vs WSO2 API Manager

Compared 8% of the time

Apache APISIX vs WSO2 API Manager

Compared 7% of the time

MuleSoft API Manager vs WSO2 API Manager

Compared 6% of the time

Amazon API Gateway vs WSO2 API Manager

Compared 6% of the time

More WSO2 API Manager Competitors

Product Reports

Buyer's Guide

OpenLegacy

October 2026

Download OpenLegacy product report

Buyer's Guide

WSO2 API Manager

October 2026

Download WSO2 API Manager product report

Overview

OpenLegacy integrates legacy customer data with REST APIs, speeding up mobile transactions and code updates while simplifying API development. Its open-source platform offers flexibility, benefiting mainframe environments and Tomcat server deployments.

OpenLegacy is crucial for organizations aiming to integrate modern web applications with legacy systems. The platform is widely used in financial and logistics sectors to enable quick access to customer data and transactions, effectively monetizing mainframe assets. By facilitating the rapid creation of numerous APIs, OpenLegacy supports seamless interactions between applications, allowing modern web form inputs into legacy systems. Its flexibility and extensive capabilities simplify API development and deployment, proving valuable for those managing day-to-day banking and transaction data. However, room for improvement includes better debugging, logging, SSL integration, flexible pricing options, and support availability, especially for Hogan mainframe users.

What features define OpenLegacy?

REST API Integration: Facilitates integration with mobile transactions.
Faster Code Updates: Delivers efficiency in code changes for mainframe environments.
Open-Source Flexibility: Offers customization and broad capabilities.
Tomcat Deployment: Supports straightforward deployment via Tomcat servers.
Rapid API Development: Enables swift creation of multiple APIs.

What ROI benefits should users expect?

Legacy System Monetization: Transforms mainframe assets into profit.
Improved Integration: Enhances access to critical customer data and transactions.
Efficient Operations: Streamlines daily banking and transaction management.
Cost-Effectiveness: Flexibility and open-source nature reduce expenses.
Enhanced Interoperability: Allows seamless interaction between old and new applications.

Financial and logistics companies leverage OpenLegacy to link web applications with legacy systems, ensuring quick customer data and transaction access. This integration supports rapid solution building and efficient management of banking and transaction data, particularly benefiting institutions like US Bank and Wells Fargo needing comprehensive Hogan mainframe connectors.

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

September 2026

Free Report: OpenLegacy vs. WSO2 API Manager

Find out what your peers are saying about OpenLegacy vs. WSO2 API Manager and other solutions. Updated: September 2026.

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