Almost every company that runs APIs got burned by one last year. A 2025 State of API Security report found that 99% of organizations ran into an API security problem in the past 12 months. The hard part is not finding API bugs. It is knowing which ones an attacker can actually use.
TL;DR
API security solutions are the tools and workflows that find, protect, and monitor your APIs so attackers cannot abuse them. The main types cover discovery, testing, runtime protection, and access control. Most teams do not lack findings. They lack proof of which API gaps are exploitable. The best setup ties attack evidence to fixes, so your team works the risks that matter and can show the work.
What are API security solutions?
An API is how two pieces of software talk to each other. API security solutions are the tools and habits that keep those conversations safe. They watch who is calling your APIs, what data moves through them, and whether someone is trying to break the rules.
Here is what API security does in plain terms:
- Finds every API you run, including the ones nobody wrote down
- Checks each API for weak spots before and after it ships
- Blocks bad requests like data scraping, account abuse, and injection
- Controls who can call an API and what they are allowed to see
- Keeps a record of every call so you can prove what happened
Why APIs are the fastest growing attack surface
A huge share of today’s web traffic runs through APIs. Every app, mobile login, and partner connection depends on them. That growth is the problem.
In the same 2025 report, 95% of API attacks came from sources that were already logged in. So the attacker is not breaking down the door. They walk in with a valid key and ask for data they should never get.
That is why older defenses miss API attacks. A firewall sees a normal looking request and waves it through. The abuse hides in the logic, not the payload.
APIs, the software supply chain, and the CI/CD pipeline
APIs do not just sit in production. They get built, tested, and shipped through your CI/CD pipeline every day. One release can add or change dozens of them.
Many of those APIs pull in outside code and third party services. If one of those pieces is weak, your API inherits the risk. This is where open source dependency risk creeps in, because a flaw in a library you imported becomes a flaw in the API you expose.
The takeaway is simple. API risk is created in the pipeline, long before it ever reaches a user.
API risk is born in the pipeline, not in production.
Every release adds or changes APIs. Each stage can leave a gap an attacker reaches later, so the time to catch it is before it ships, not after the breach.
A fix at the code or build stage costs minutes. The same gap found at runtime can cost a breach.
The main types of API security solutions
No single tool does all of this. Most programs mix a few types. Here are the ones that matter:
- API discovery and inventory: finds every API you run, including shadow and zombie APIs that nobody is tracking
- API security testing: checks your APIs for bugs while they are still in testing, so you catch issues before they ship
- Runtime protection: watches live traffic and blocks abuse like scraping, credential stuffing, and injection
- Authentication and access control: confirms each caller is who they claim to be and can only reach what they are allowed to
- Monitoring and response: logs every call, spots odd behavior, and helps your team act fast when something looks wrong
Testing before release matters, but it is not enough on its own. Real attacks happen at runtime, against live APIs. That is why shift left security needs a runtime partner, so you are covered both before and after code ships.
The 7 common API types these tools protect
API security tools have to cover more than one kind of API. These are the seven you will run into most:
- REST: the most common type, used by most web and mobile apps
- SOAP: an older, strict format still common in banking and government
- GraphQL: lets an app ask for exactly the data it needs in one call
- gRPC: fast and lightweight, popular for services that talk to each other
- WebSocket: keeps a live connection open for chat, trading, and gaming apps
- Webhooks: send an automatic message the moment an event happens
- RPC: lets one program run a function on another, often behind the scenes
How to choose the best API security solution
There is no single best tool for everyone. The right fit depends on how many APIs you run, where they live, and how fast your team ships. Ask these questions:
- Can it find APIs you forgot you had, on its own?
- Does it test before release and protect at runtime?
- Does it tell you which gaps are actually exploitable, not just hand you a long list?
- Does it work with the tools you already own, instead of replacing them?
- Can you prove every action to an auditor or your board?
The last two points get skipped a lot. A tool that buries your team in alerts or forces a full rip and replace creates more work, not less.
Where most API security programs break down
Here is the part most vendors skip. Finding API problems is easy now. Acting on them is where teams get stuck.
Only 6% of organizations say they run a mature API security program, per the 2025 report. Most are still drowning in findings.
The pattern looks like this. A scanner spits out hundreds of API issues. Nobody knows which ones an attacker can reach. So the team patches a little of everything and hopes for the best. The real risk stays open while people burn out on busywork.
Hundreds of API findings. Only a few an attacker can use.
A scanner flags everything. It cannot tell you which gap is reachable. Offense can, so your team fixes the risk that is real instead of the whole list.
Most teams drown in the top box. The win is getting to the bottom one, fast.
The fix is not more alerts. It is proof. You need to know which gaps are exploitable, who owns the fix, and whether the fix actually worked.
How Secure.com helps with API security
Most tools hand you more findings. Secure.com hands you proof and a fix. It runs governed AI teammates above the stack you already own, so API risk gets closed without taking control out of your hands.
- Attack: the Red Teammate safely tests your APIs inside a scope you set, and confirms which gaps are truly exploitable
- Harden: the AppSec Teammate turns that proof into prioritized fixes, routed to the right owner through your pipeline and release gates
- Prove: every check, approval, and fix is logged, so you can show an auditor or your board that the risk went down
- Stay in control: your team approves anything consequential before it happens
- Start with one: begin with a single teammate and add more when you are ready
Attack. Harden. Prove. Repeat.
Frequently asked questions
What does API security do?
What is the best API security solution?
What are the most common types of APIs?
What is the top API security risk?
Is API security the same as web application security?
Recommended reads
- Replacing Point Tools vs. Orchestrating Them: What Buyers Will Actually Accept: API security is rarely one tool, so this backs up orchestrating what you already own instead of ripping it out.
- Continuous Attack Surface Management: An Easy Guide: APIs are a live attack surface, so this is the natural next read on finding what is exposed, continuously.
