I built a free Burp/Caido alternative that needs zero setup

In plain words

Apiaxess is a free, open-source API security workbench designed for testing web and Android applications. It features a pre-configured browser routed through its proxy and an Android emulator with the certificate already installed, eliminating setup overhead. The tool provides a unified API surface that users can export for analysis. It includes a reference Android app with 17 documented endpoints across multiple frameworks and supports request replay and automated attack capabilities similar to commercial alternatives.

written from the facts on this page · September 2026

From the sources

A browser already routed through the proxy. An Android emulator that already trusts the certificate. One session, nothing to set up. We built a reference Android app with 17 documented endpoints (Retrofit, OkHttp, HttpURLConnection and GraphQL, plus a third-party host and calls behind taps and a second screen) and scored apiaxess against it. Boots already trusting the certificate. Install an APK, drive it, read the traffic. Pinned apps included. Its own Chromium on an isolated profile, routed through the proxy. Your browser is never touched. Replay any request, or run a full Intruder-class attack. Four attack types, no throttling. OpenAPI 3.1, Postman, HAR and a Python client, from one…from apiaxess.dev

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