API vulnerability scanner

Discover and test the APIs behind modern applications.

Inspect API traffic, identify inputs and authentication context, apply active and passive security checks, and validate findings from the same manual testing workspace.

API-aware traffic and parameter discovery Header, cookie, and form authentication Manual request inspection and manipulation
Why it matters

Security testing built around real application context.

APIs expose application logic and data through structured requests that are often authenticated, stateful, and distributed across services. VulnSign combines browser and traffic discovery with configurable scanning and manual request control to test APIs in their real application context.

01

Capture the API surface

Discover API traffic through application crawling, proxy history, and imported crawl data.

02

Preserve context

Configure required headers, cookies, identities, and scanner behavior for authenticated calls.

03

Test inputs and behavior

Apply passive and active checks to discovered endpoints and parameters.

04

Validate and integrate

Reproduce issues manually, send them to engineering, and retest corrected endpoints.

VulnSign capabilities

Automation and expert control in the same workflow.

Context-aware discovery

Connect browser behavior and HTTP history to the API endpoints that implement it.

Authenticated API testing

Supply headers and cookies and model multiple personas for role-sensitive testing.

Request-level control

Inspect, replay, modify, automate, and document API requests and responses.

What your team gains

  • Find APIs reached through real application workflows
  • Test authenticated endpoints with the required context
  • Give developers precise request and response evidence
Frequently asked questions