#1Tools for assessing the security of REST, SOAP, and GraphQL APIs.
Kitploit recommended

Go-based Web Application Firewall library compatible with ModSecurity SecLang rules and OWASP Core Rule Set v4, providing real-time HTTP traffic…
Automated API security testing tool that generates tests from OpenAPI specs, fuzzes inputs, and checks for OWASP API Top 10 vulnerabilities including…

Terminal API client for HTTP, GraphQL, gRPC, WebSocket and SSE. Plain .http files you can diff and version, with scripted tests, workflows, mocks,…

Model Context Protocol server for Firefox DevTools - enables AI assistants to inspect and control Firefox browser through WebDriver BiDi

Self-hosted WAF and reverse proxy that filters malicious HTTP traffic, blocks SQL injection, XSS, and bot attacks, with rate limiting and dynamic…

opensource repo for validating agentic AI applications: redteam, behavior, supply-chain, static analysis

Rust components for traffic interception and redirection, enabling WireGuard device proxying and local app redirection across macOS, Windows, and…

Go client to communicate with Chaos DB API.

Lightweight static analysis for many languages. Find bug variants with patterns that look like source code.

CVE-2026-9830 Proof of Concept

Lightweight service virtualization/ API simulation / API mocking tool for developers and testers

A Burp Suite extension that exposes the full Montoya API as a local REST API, with Swagger UI

Burp Suite extension that adds built-in MCP tooling, AI-assisted analysis, privacy controls, passive and active scanning and more

High-performance HTTP/HTTPS/SOCKS5 MITM proxy in Rust with TLS interception, rule-based request rewriting, traffic capture, breakpoints, script…

Open-source web security testing platform: proxy, scanner and fuzzer in one CLI. By Pennacle Security.

Burp Suite extension that extends active and passive scanning with checks for host header attacks, XXE, expression language injection, shellshock and…

A simple server to host the valid, revoked, and expired certificates required by Section 2.2 of the CA/Browser Forum Baseline Requirements.

An open testing platform that probes HTTP/1.1 servers against RFC 9110/9112 requirements, smuggling vectors, and malformed input handling. Add your…