API Security Testing
API penetration testing that proves the exploit
Enter your domain and TurboPentest tests your REST API against the OWASP API Security Top 10 - BOLA, broken authentication, excessive data exposure, and more. 14 scanning tools orchestrated by the Paladin AI, every finding validated with a proof-of-concept. Not just a scan. A pentest.
See a sample report →What is API security testing?
API security testing probes the endpoints your applications expose - REST APIs, mobile back ends, and service-to-service interfaces - for the vulnerabilities that matter most to an attacker: broken object level authorization (BOLA), broken authentication, and excessive data exposure. Unlike a page-by-page web scan, an API pentest focuses on the access controls and business logic behind each endpoint, where an attacker walks IDs, swaps tokens, and asks for data they shouldn't get.
The problem with most API scanners is noise: a flood of raw alerts with no idea which are real. TurboPentest solves that by driving its tools with the Paladin AI, which validates each candidate finding with a proof-of-concept before it reaches your report - so you get a short list of confirmed issues, each with remediation and a Fix with AI prompt.
14 tools
scanning tools including OWASP ZAP and Nuclei, orchestrated by the Paladin AI
TurboPentest engine
OWASP API Top 10
the themes an API pentest is judged against - BOLA, broken auth, data exposure
Coverage themes
PoC-validated
every finding confirmed with a proof-of-concept before it lands in your report
Paladin AI
How an API pentest runs on TurboPentest
Enter your domain
Black-box by default - no configuration, no OpenAPI spec required. Prove you own the target and the run starts.
Map the attack surface
The engine catalogs your most-interesting endpoints with their methods, parameters, and auth requirements, plus the authentication mechanisms and input vectors an attacker would target.
Test against the OWASP API Top 10
14 tools including OWASP ZAP and Nuclei, orchestrated by the Paladin AI, probe each endpoint for BOLA, broken authentication, excessive data exposure, and injection. Connect a GitHub repo read-only to add white-box source-code analysis.
Get your report
Findings with proof-of-concept, remediation guidance, a STRIDE threat model of what to test next, and retest commands to confirm every fix.
Coverage across the OWASP API Security Top 10
TurboPentest frames API coverage around the categories a serious API pentest is measured by - and tests them alongside your network, web app, SSL/TLS, and external attack surface in a single run.
Broken object level authorization (BOLA)
The #1 API risk. TurboPentest catalogs endpoints, parameters, and auth requirements, then probes whether one user can reach another user's objects by tampering with IDs.
Broken authentication
Weak or missing auth on endpoints, guessable tokens, and flows that let a request skip authentication - mapped against the auth mechanisms found on your attack surface.
Excessive data exposure
Responses that hand back more than the client needs - internal fields, other users' data, and objects the API filters in the UI but not on the wire.
Broken function level authorization
Admin or privileged operations reachable by a regular caller - tested by exercising methods and functions across the endpoints in the attack surface map.
Injection & security misconfiguration
Injection into parameters and headers, plus misconfigured TLS, permissive CORS, and verbose errors - surfaced across the SSL/TLS and web-app layers of the same run.
Resource, rate limiting & external surface
Unrestricted resource consumption and endpoints exposed on the external attack surface, discovered alongside network, subdomain, and port findings.
Your API is one layer. TurboPentest tests them all.
An API pentest runs inside the same $99 test that covers your web app, network, and source code. Dynamic testing exercises the running endpoints; static analysis reads the code behind them - so a finding arrives already validated.
API Security Testing FAQ
What is API security testing?+
API security testing probes the endpoints your applications expose - REST APIs, mobile back ends, and service-to-service interfaces - for vulnerabilities like broken object level authorization (BOLA), broken authentication, and excessive data exposure. It focuses on the logic and access controls behind each endpoint, not just the pages a browser renders. TurboPentest tests your API as part of a full run that also covers network, web app, SSL/TLS, and external attack surface.
How does TurboPentest run an API pentest?+
Enter your domain and TurboPentest runs black-box by default - no configuration required. The engine drives 14 scanning tools, including OWASP ZAP and Nuclei, orchestrated by the Paladin AI. It builds an attack surface map that catalogs your most-interesting endpoints with their methods, parameters, and auth requirements, then tests them against OWASP API Security Top 10 themes. Connect a GitHub repo read-only to add white-box source-code analysis.
Do the findings come with proof?+
Yes. The Paladin AI validates each candidate finding with a proof-of-concept before it lands in your report, so you get confirmed issues instead of raw scanner noise. Every finding ships with remediation guidance and retest commands to re-run the exact check once you have fixed it.
Does it cover the OWASP API Security Top 10?+
TurboPentest frames its API coverage around the OWASP API Security Top 10 themes - BOLA, broken authentication, excessive data exposure, broken function level authorization, injection, security misconfiguration, and more - by cataloging endpoints, auth mechanisms, and input vectors and testing each against those categories.
How much does an API pentest cost?+
$99 per target, flat. That single run covers your API alongside network, web app, subdomain discovery, SSL/TLS, and external attack surface - no subscription, no scoping call, results in a few hours.
Test your API. Prove the exploit. $99.
One flat price covers your API alongside network, web app, SSL/TLS, and external attack surface. See pricing
Written and reviewed by
Michel Chamberland - Founder & CEO, IntegSec
CISSP, OSCP, OSCE, CEH, GIAC, CCSK · 20+ years in offensive security
Michel has spent 20+ years on offensive security teams including IBM X-Force Red and Trustwave SpiderLabs, leading penetration tests, red team engagements, and breach response for Fortune 500 customers. He is the founder of IntegSec and the architect of TurboPentest.