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IBM API Connect vs OpenLegacy comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Dec 17, 2024

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

IBM API Connect
Ranking in API Management
8th
Average Rating
8.0
Reviews Sentiment
6.5
Number of Reviews
79
Ranking in other categories
Integration Platform as a Service (iPaaS) (14th)
OpenLegacy
Ranking in API Management
36th
Average Rating
7.6
Reviews Sentiment
6.2
Number of Reviews
5
Ranking in other categories
AI Software Development (83rd)
 

Mindshare comparison

As of February 2026, in the API Management category, the mindshare of IBM API Connect is 4.9%, down from 6.2% compared to the previous year. The mindshare of OpenLegacy is 0.9%, up from 0.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
API Management Market Share Distribution
ProductMarket Share (%)
IBM API Connect4.9%
OpenLegacy0.9%
Other94.2%
API Management
 

Featured Reviews

SM
Works at a outsourcing company with 5,001-10,000 employees
Have addressed performance challenges while benefiting from flexible subscription models and reliable user access
To improve IBM API Connect, based on customer experience, you could work on latency. You can increase scalability and availability. If you're connecting with any other cloud, it connects to the infrastructure which needs to be managed with the customers and cloud providers, so if you have a setup, we can handle it easily. I have faced latency issues on the server, related to our management. If you need to stabilize your server based on peak traffic, you need to configure the scalability model. You need to know when traffic peaks, so use auto-scaling when traffic comes. If the application is not in use, the value should be zero, and it starts from zero. Based on customer experience, the value will increase, and when there is no customer servicing, the peak would be reduced, making the value remain zero. Following this approach, you should be able to optimize costs and satisfy customer experience.
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.

Quotes from Members

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

Pros

"It is a complete all-in-one solution."
"The ability for all of our web applications to share standard functions and documents easily is valuable."
"The most valuable features of IBM API Connect are its performance and user-friendliness."
"API Connect's data gateway is one of the strongest in the market."
"It is easy to use and stable."
"The support is good and active. I rate the technical support a nine out of ten."
"Its speed and performance are valuable."
"IBM API Connect is a good product, and their technical support is excellent."
"Using mainframe programs (not screens), the OpenLegacy services do not require any changes by the mainframe programmers, thus reducing development cycles."
"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."
"Opens the door to connect modern web products to an old legacy system."
"It is possible to solve larger legacy API issues on an enterprise level with this product."
"The biggest advantage of OpenLegacy was how simple the technology was. We were able to build out the OpenLegacy parts very quickly. We put together a couple hundred APIs in six months."
"It is possible to connect a service to a mainframe program or back transaction in a matter of minutes or hours at the most."
"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 produces a war file which includes everything you need to deploy a Tomcat server."
 

Cons

"Understanding the architecture, deployment criteria, and communication methods of the installation can be time-consuming."
"Components, like caching, should be implemented as policies, not requiring dependency on an external solution."
"The design time setup has a lot of customizable fields, but we need certain standard fields to be added, such as what all of the consuming systems are. This needs to be very clearly articulated during the design time."
"I would like to see support for non-Java based services. We struggle a bit to be able to deploy and connect our .NET services because of things like data types. We had to map a couple of things. For one solution provider, we had to move them to .NET Core before we could use it properly. I would like to see more agnostic tool service platforms rather than moving it more towards Java or open source."
"Like any typical IBM infrastructure setup, you need to learn to set it up yourself. It's not one of those simple zip files or an archive unzip and you're up and running in some few minutes. Knowledge to set it up is key."
"The integration of an API gateway that implements the sidecar pattern, which can be deployed in cloud applications, and expose the microservices directly in each pod, this can be more decentralized components."
"We've had some issues upgrading to the latest version of the solution."
"The new version is very unstable."
"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."
"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. We are currently working with OpenLegacy to cross the SSL bridge and suspect that most users will want to do the same."
"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."
 

Pricing and Cost Advice

"API Connect's license cost could be a little lower. But, unfortunately, there aren't many open-source API gateways. Ideally, some new developers could come up with a minimum-functionality open-source solution."
"The pricing is significantly high."
"This is a licensed product. If your company is looking to obtain a license, you have to work with IBM partners."
"It is an expensive solution. The licensing model is based on a per-subscription and per-subscriber end-user basis, meaning the price is determined by the end-users of the platform."
"It would be a good idea to bring down the pricing by at least 20 to 30 percent."
"We pay for the IBM API Connect monthly. We only need to pay the standard licensing fee."
"It's an expensive product."
"API Connect is expensive - I'd rate their pricing five out of ten."
"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."
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Top Industries

By visitors reading reviews
Financial Services Firm
19%
Insurance Company
11%
Computer Software Company
8%
Manufacturing Company
8%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business19
Midsize Enterprise10
Large Enterprise61
No data available
 

Questions from the Community

What do you like most about IBM API Connect?
Publishers can easily identify, create, and publish APIs on the developer portal, defining plans, packages, and potentially billing rules.
What is your experience regarding pricing and costs for IBM API Connect?
I do not handle the pricing, setup cost, and licensing details.
What needs improvement with IBM API Connect?
We are relatively new to IBM API Connect, so I do not have significant improvements to suggest at this time.
Ask a question
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Overview

 

Sample Customers

Heineken, Tine, Finologee, Axis Bank
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...
Find out what your peers are saying about IBM API Connect vs. OpenLegacy and other solutions. Updated: February 2026.
881,821 professionals have used our research since 2012.