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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 (78th)
WSO2 API Manager
Ranking in API Management
11th
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 August 2026, in the API Management category, the mindshare of OpenLegacy is 1.4%, up from 0.5% compared to the previous year. The mindshare of WSO2 API Manager is 3.3%, down from 5.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
API Management Mindshare Distribution
ProductMindshare (%)
WSO2 API Manager3.3%
OpenLegacy1.4%
Other95.3%
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 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."
"OpenLegacy opens the door to connect modern web products to our old legacy system."
"The speed of development of production, especially in specific environments like IBM mainframes, has been valuable."
"Using mainframe programs (not screens), the OpenLegacy services do not require any changes by the mainframe programmers, thus reducing development cycles."
"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 produces a war file which includes everything you need to deploy a Tomcat server."
"The solution is open source and easy to configure."
"The advice I have for any of the organizations or companies looking for an API manager is that they, first of all, verify the building block before selecting a product."
"The solution is open-source, fully containerized with a micro-gateway, scales up and down easily, is not a monolith, and offers a flexible stack with components like a micro-integrator, analytics, streaming integration, and identity access management that fit well to my requirements."
"We could easily deploy APIs on WSO2 API Manager, and CORS configuration was easy to manage."
"The most interesting feature is its Mac-based function."
"It's a good product."
"WSO2's scalability is very good because we deployed using a microgateway-driven approach on OCP, which takes care of scaling."
"It is a scalable solution because it can be scaled horizontally and vertically."
 

Cons

"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."
"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."
"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."
"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'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."
"The solution could be more user friendly for engineers."
"From a product perspective, the first thing is that although the documentation provided by WSO2 is good, it could be much better. We're in the middle of a complex migration, moving away from VMs to Kubernetes with the latest version of WSO2 and good documentation is essential to us right now."
"The user interface provides all functionalities to configure and manage the product, however its usability, especially for first-time users, is a little bit rough compared to the UI of other commercial API Managers."
"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."
"For fresh graduates and engineers, the setup process can be very difficult."
"The support system is not that great."
"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."
"WSO2 API Manager should improve its marketplace subscription model and documentation in order to reach a higher level in the market."
 

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 costly solution, and its pricing is not competitive enough compared to other products."
"It's not expensive, but it could be cheaper."
"WSO2 API Manager is quite an expensive tool. I rate the product's pricing a nine on a scale of one to ten, where one is low and ten is high."
"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."
"As far as I'm aware, the costs are not minimal but satisfactory."
"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."
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Top Industries

By visitors reading reviews
Construction Company
26%
Financial Services Firm
13%
Comms Service Provider
12%
Manufacturing Company
11%
Financial Services Firm
20%
Comms Service Provider
8%
Manufacturing Company
6%
Computer Software 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: August 2026.
909,725 professionals have used our research since 2012.