APIaxess: Free API testing tool with zero setup, Burp alternative.

What it does

APIaxess is an API security testing workbench for web and mobile applications. It provisions a pre-configured browser and Android emulator—both already routed through an intercepting proxy and pre-trusted for certificate inspection—so users can capture and analyze API traffic without manual setup. The tool merges API calls from both web and mobile sources into a unified surface, then allows users to replay requests, fuzz parameters, and export API specifications in formats like OpenAPI 3.1 and Postman collections.

Who it is for

The tool targets API penetration testers and security engineers who currently use Burp Suite or similar proxies. It is designed to lower the barrier to entry for API security testing by eliminating the setup friction around proxy configuration, certificate installation, and Android device preparation. The creator's motivation came from spending more time configuring test environments than actually performing security analysis.

Pricing

The site does not show prices. The tool is described as free and open source.

How it stands out

APIaxess eliminates the setup steps that typically precede API testing. A standard Burp Suite workflow requires configuring proxies, installing certificates on devices, and preparing emulators—APIaxess ships with these already done. The tool captures traffic from both a sandboxed web browser and an Android emulator in a single session, then de-duplicates endpoints across sources. The interface includes a session workbench for request replay, fuzzing, and interception filtering. Export functionality lets users generate machine-readable API specifications rather than screenshots. The creator benchmarked the tool against a reference app with 17 endpoints and claims zero false positives on endpoint discovery.

What a founder should check

A potential competitor should verify: (1) whether the zero-setup value proposition holds against the current Burp Suite workflow—check if Burp users actually spend meaningful time on setup or if familiarity makes it a non-issue; (2) the actual switching cost, since Burp Suite has years of enhancements, plugin ecosystems, and trained teams, so validate whether a faster onboarding alone drives adoption; (3) how the tool handles common real-world obstacles like SSL pinning bypass, OAuth flows, and encrypted traffic in mature apps—the site notes the tool tells users when something cannot be done rather than hiding it, which suggests limitations exist.

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