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ApyGuard

Discover your API surface and test authorization, OWASP API Top 10, and business-logic risks before production. Start free with no credit card.

ApyGuard is a developer-first API security testing platform that finds vulnerabilities and authorization flaws before they reach production.

Most teams don't have an accurate picture of the APIs their applications actually expose. OpenAPI files go stale, and AI coding assistants (Copilot, Cursor, Claude Code) generate endpoints faster than anyone documents them. Traffic-based security tools only see APIs that are already deployed — ApyGuard starts from the source code, so it catches issues before exposure, not after.

How it works:

Discover — endpoints are found directly in your codebase (FastAPI, Django, Flask, Express, NestJS), including shadow endpoints missing from your specs
Document — OpenAPI specifications are generated automatically and kept in sync with the code
Test — full OWASP API Security Top 10 coverage, with emphasis on BOLA, BFLA, and broken authentication; attack payloads are tailored to each API's schema and role model instead of generic fuzzing
Fix — findings are ranked by exploitability and include remediation guidance, routed to Jira/Slack

Ships with your pipeline: CI/CD security gates for GitHub Actions, GitLab CI, CircleCI, and Azure DevOps. Integrations with GitHub, GitLab, Jenkins, Postman. Findings map to OWASP, GDPR, and PCI DSS requirements to support compliance reporting. On-premise deployment available.

Start free in the editor: APIScout, our free VS Code extension (also on Open VSX for Cursor and Windsurf), discovers endpoints and generates OpenAPI specs entirely locally — no code leaves your machine, no account required.

Transparent pricing: self-serve plans from $129/month, seven-day free trial, no credit card, no sales call. Built for startups and SMB teams shipping APIs without a dedicated AppSec department.

A startup from Turkey that is founded by Anil Yuksel.

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ApyGuard Reviews and Details

This page is designed to help you find out whether ApyGuard is good and if it is the right choice for you.

#Cyber Security #APIs #API Tools #Vulnerability Scanner #Penetration Testing #API Testing #Api Security

Screenshots and images

Vulnerability Scan Results //
2026-08-13
Discovery Screen //
2026-08-13
OpenAPI Blueprint //
2026-08-13
Sensitive Data //
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Dashboard //
2026-08-13
Dashboard 2 //
2026-08-13

Features & Specs

API Security

Developer-first API security: discovery, documentation, testing, and vulnerability management in one platform.
API Security Assessment

Maps your full API attack surface and delivers a prioritized, evidence-backed risk report.
API Security Testing

Simulates real attacks with payloads tailored to each API's schema and role model to catch broken auth, injection, and authorization flaws before production.
API Discovery

Finds every endpoint your backend actually exposes by analyzing the codebase directly, before deployment.
Sensitive Data Detection

Identifies endpoints exposing sensitive data that needs protection or masking.
Behavioral Analysis

Learns normal API behavior and flags anomalies and business-logic issues beyond schema validation.
OpenAPI Documentation

Generates and maintains OpenAPI specifications from discovered endpoints, so docs never go stale.
Business Logic Testing

Detects logic abuse schema validation can't catch, like users reaching other users' data or skipping workflow steps.
OWASP API Top 10 Coverage

Automated test coverage for the full OWASP API Security Top 10.
CI/CD Integration

Blocks releases on critical findings via GitHub Actions, GitLab CI, CircleCI, and Azure DevOps.
Scheduled Scans

Runs security tests on demand or on a recurring schedule for continuous coverage.
Vulnerability Management

Dashboards for risk posture, trends, and endpoint-level insight, with Jira and Slack routing.
Compliance Reporting

Maps findings to OWASP, GDPR, and PCI DSS requirements for audits and security questionnaires.
SaaS

Cloud-hosted with nothing to deploy — no agents, no traffic mirroring; sign up and run your first scan the same day.
On-Premise Deployment

Self-hosted option for organizations with data residency or isolation requirements.
VSCode Extension

APIScout: free, local-first endpoint discovery and OpenAPI generation in the editor — no code leaves your machine. Also on Open VSX for Cursor and Windsurf.
Chrome Extension

Captures API calls from live browsing sessions to discover endpoints and feed your API inventory.

Questions & Answers

As answered by people managing ApyGuard.

What makes ApyGuard unique?

ApyGuard starts from source code, not traffic. Most API security platforms watch production traffic to discover APIs — which means they can only see endpoints that are already deployed and receiving requests. ApyGuard discovers endpoints directly from the codebase, generates OpenAPI documentation from what it finds, and tests for OWASP API Top 10 issues — especially authorization flaws like BOLA and BFLA — before the code ships. It also comes with APIScout, a free VS Code extension (also on Open VSX for Cursor and Windsurf) that runs endpoint discovery entirely locally, so no code ever leaves the developer's machine. And unlike most of the category, pricing is public and self-serve, starting at $129/month.
Why should a person choose ApyGuard over its competitors?

It depends on your situation, honestly. If you're an enterprise with a security operations team and a six-figure budget, traffic-based platforms are mature options. ApyGuard is built for the teams those platforms don't serve: startups and SMBs that ship APIs every week without a dedicated AppSec department. Compared to spec-first tools, ApyGuard doesn't require you to already have an OpenAPI file — it generates one from your code. Compared to traffic-based tools, it tests pre-production instead of after exposure. Compared to per-endpoint enterprise pricing, it starts at $129/month with a seven-day trial, no credit card and no sales call. You can find out what your API actually exposes the same day you sign up.
How would you describe the primary audience of ApyGuard?

Backend developers, DevSecOps engineers, and engineering leaders at startups and small-to-mid-sized technology companies — typically SaaS, fintech, e-commerce, and healthcare teams. A fast-growing part of our audience is teams building with AI assistants like Copilot, Cursor, and Claude Code, who need to know exactly which endpoints their AI-assisted codebase actually exposes.
What's the story behind ApyGuard?

The recurring problem: teams almost never had an accurate picture of the APIs their applications exposed. OpenAPI files went stale, undocumented endpoints shipped every sprint, and the tools that could help were priced and designed for large enterprises. AI coding assistants made the gap worse - code ships faster than anyone documents or reviews it. ApyGuard was built to close that gap from the source code side: discover what's really there, document it automatically, and test it before production - at a price a startup can actually pay.
Which are the primary technologies used for building ApyGuard?

Python (static analysis and scanning engine) TypeScript (web application and VS Code extension)

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