No more typing reviews! Try our Samantha, our new voice AI agent.

OpenLegacy vs WSO2 API Manager comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Nov 16, 2025

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
33rd
Average Rating
7.6
Reviews Sentiment
6.2
Number of Reviews
5
Ranking in other categories
AI Software Development (101st)
WSO2 API Manager
Ranking in API Management
9th
Average Rating
8.0
Reviews Sentiment
6.9
Number of Reviews
42
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of May 2026, in the API Management category, the mindshare of OpenLegacy is 1.2%, up from 0.3% compared to the previous year. The mindshare of WSO2 API Manager is 3.9%, down from 4.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
API Management Mindshare Distribution
ProductMindshare (%)
WSO2 API Manager3.9%
OpenLegacy1.2%
Other94.9%
API Management
 

Featured Reviews

reviewer1042905 - PeerSpot reviewer
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.
MM
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.

Quotes from Members

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

Pros

"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."
"The product has helped our business by allowing us to become more efficient in data handling."
"Opens the door to connect modern web products to an old legacy system."
"Without OpenLegacy, it would take us several months to create the same services."
"OpenLegacy produces a war file which includes everything you need to deploy a Tomcat server."
"OpenLegacy opens the door to connect modern web products to our old legacy system."
"It is possible to solve larger legacy API issues on an enterprise level with this product."
"It is possible to connect a service to a mainframe program or back transaction in a matter of minutes or hours at the most."
"WSO2's scalability is very good because we deployed using a microgateway-driven approach on OCP, which takes care of scaling."
"WSO2 API Manager has everything that any API Manager product could have."
"The solution is open-source."
"It's a good product."
"This solution is a little bit faster, easier to use, and has better integration than the other solutions I have experienced."
"WSO2 API Manager has a user-friendly model."
"WSO2 is very stable."
"We could easily deploy APIs on WSO2 API Manager, and CORS configuration was easy to manage."
 

Cons

"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."
"I would like to see SSL out-of-the-box. OpenLegacy certainly does SSL, but it was not the default for our use case."
"The pricing of the solution could be more flexible and allow for once-off payment versus annual licensing."
"Customer support for the product is slow and not very good. It makes using the product difficult if you need help quickly."
"Debugging and logging for programmers could be better."
"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."
"Debugging and logging for programmers could be better."
"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."
"Lacks some new features and updated functionalities."
"I wouldn't actually recommend this to anyone. Personally, I wouldn't recommend this solution at all."
"WSO2 API Manager could increase their security compliance. Here in India, the government is coming with a lot of regulations and required security features which the solutions have to upgrade to meet this requirement."
"WSO2 API Manager could increase their security compliance."
"I would improve the product documentation. There are some gaps, and it can be difficult to find the proper documentation for the product if you need to solve something."
"Providing easy configuration for email and SMS notifications, layout and customization of admin and developer landing pages."
"For fresh graduates and engineers, the setup process can be very difficult."
 

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."
"My previous company paid about 1.2 million dollars, and my current company pays about 300k. Both companies are at the enterprise level."
"We have not opted for the paid version of WSO2 but we have implemented the free and open source WSO2 software to a great extent and it is working as per our expectation."
"WSO2 API Manager is an open-source solution."
"I am using the free version."
"The solution costs less than 20,000 euros a year. I'm not sure of the exact number."
"WSO2 API Manager is a low-cost solution. It is one of the most affordable solutions."
"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."
report
Use our free recommendation engine to learn which API Management solutions are best for your needs.
894,738 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Construction Company
26%
Comms Service Provider
13%
Financial Services Firm
12%
Insurance Company
10%
Financial Services Firm
20%
Comms Service Provider
8%
Computer Software Company
8%
Manufacturing Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business15
Midsize Enterprise7
Large Enterprise21
 

Questions from the Community

Ask a question
Earn 20 points
What needs improvement with WSO2 API Manager?
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...
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.
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...
 

Overview

 

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
Find out what your peers are saying about OpenLegacy vs. WSO2 API Manager and other solutions. Updated: April 2026.
894,738 professionals have used our research since 2012.