Five signs it's time to consolidate your API gateways

Nobody plans to run four API gateways. It happens gradually: the ESB from the 2010s that still carries core integrations, the gateway that arrived with an acquisition, the cloud-native one a platform team adopted, and the vendor appliance nobody remembers choosing. Each one made sense at the time. Together, they are an estate.

Having led hundreds of consolidation projects since 2016, our solutions engineering team sees the same warning signs again and again. None of them is fatal on its own. But when several appear together, they are usually telling you that the estate has started to cost more than it returns. Here are the five that matter most.

1. Nobody can answer "how many APIs do we have?"

If that question triggers a spreadsheet hunt across three teams, your organization has an inventory problem, and inventory problems are governance problems in waiting. You cannot secure, monitor, or retire what you cannot list.

The gap is rarely small. The APIs that make it onto the spreadsheet are the ones someone remembered; the ones that do not are the forgotten endpoints, the test services that quietly went to production, and the partner integrations that outlived the project that created them. Those are precisely the ones that turn up in an incident report, because nobody was watching a thing nobody knew existed.

2. The same policy is implemented differently everywhere

An authentication standard or a data-residency rule that must be configured separately on each platform will drift. Every difference between implementations is a finding your next audit will surface, or worse, one it won't.

Multiply one policy by four gateways and every future change becomes four changes, each with its own chance of being missed. When a regulation shifts or a security standard tightens, the work is not "update the rule"; it is "update the rule everywhere, correctly, and prove that you did." Estates that cannot make a policy change in one place are estates where policy slowly stops meaning anything.

3. Renewal season involves multiple vendors and duplicate spend

Licenses, support contracts, hardware, and the specialist skills to run each platform add up quietly. Most enterprises we work with find that consolidation pays for itself on operating cost alone, before counting the delivery speed they gain.

The line items are only part of it. Each platform demands people who know it well, and that expertise is both expensive and fragile, one resignation away from becoming a risk. The true cost of a fragmented estate is not the sum of the invoices; it is the invoices plus the headcount plus the institutional knowledge you cannot afford to lose.

4. New projects wait on integration teams

When exposing a service or onboarding a partner takes weeks of tickets across platforms, business teams route around IT, and the estate grows another informal branch. Speed is not a luxury here; it is what keeps the architecture governable.

This is the sign that feeds all the others. Every workaround born of frustration becomes an undocumented endpoint, an inconsistent policy, and another vendor on the renewal list. A slow integration function does not just delay projects; it actively manufactures the sprawl that makes it slower still. Breaking that loop is often the real prize of consolidation.

5. AI adoption has nowhere to land

The newest sign is the most telling. Organizations now need a governed path for AI traffic, and a fragmented gateway estate has no natural place to put one. Consolidation is increasingly the moment enterprises establish AI governance at the same time.

The instinct is to bolt on yet another gateway, this one for AI. But that simply adds a fifth silo to an estate already struggling with four, and it puts the most sensitive new traffic in the organization outside the controls that govern everything else. The organizations getting this right treat AI as one more reason to consolidate, not one more thing to fragment.

Consolidation without the cliff edge

The risk in consolidation is never the destination, it is the journey. The journey is what we engineered.

The reason estates persist long after everyone agrees they should be consolidated is fear of the migration itself: the big-bang cutover, the weekend that runs into Monday, the partner whose integration breaks with no way back. That fear is rational, and it is exactly what a good consolidation strategy is designed to remove.

Waygrid consolidations run route by route, with the legacy platforms operating alongside until the last route moves. Endpoints stay stable, every step can be rolled back, and most organizations complete the full transition within a quarter. Nobody is asked to bet the estate on a single cutover. If several of the signs above feel familiar, our team can walk you through what the journey would look like for your estate.