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A collection of awesome API Security tools and resources.

AboutAPI Keys: Find and validateBooksCheatsheetsChecklistConferences
Deliberately vulnerable APIsDesign, Architecture, DevelopmentEncyclopedias, Projects, Wikis and GitBooks
Enumeration, Scanning and exploration stepsFirewallsFuzzing, SecLists, WordlistsHTTP 101Mind maps
NewslettersOther resourcesPlaylistsPodcastsPresentations, VideosProjects
Security APIsSpecificationsToolsTraining, Workshops, LabsTwitter


The awesome-api-security (aka awesome-apisec) repository is collection of awesome API Security tools and resources.
The focus goes to open-source tools and resources that benefit all the community.

Please read the contributions section before opening a pull request.

API Keys: Find and validate

Name Description
API Guesser Simple website to guess API Key / OAuth Token by Muhammad Daffa
API Key Leaks: Tools and exploits An API key is a unique identifier that is used to authenticate requests associated with your project. Some developers might hardcode them or leave it on public shares.
Key-Checker Go scripts for checking API key / access token validity.
Keyhacks Keyhacks is a repository which shows quick ways in which API keys leaked by a bug bounty program can be checked to see if they're valid.
Private key usage verification Driftwood is a tool that can enable you to lookup whether a private key is used for things like TLS or as a GitHub SSH key for a user.
Mantra A tool used to hunt down API key leaks in JS files and pages


Author Publisher Name Description
Emily Freeman Data Theorem Special Edition API Security for dummies This book is a high-level introduction to the key concepts of API security and DevSecOps.
Neil Madden Manning API Security in Action API Security in Action teaches you how to create secure APIs for any situation.
Dolev Farhi and Nick Aleks No starch press Black Hat GraphQL Black Hat GraphQL (book in pre-order).
Corey Ball No starch press Hacking APIs Breaking Web Application Programming Interfaces.
Justing Richer and Antonio Sanso Manning Understanding API Security Several chapters from several Manning books that give you some context for how API security works in the real world.


Name Description
GraphQL Cheat Sheet GraphQL - OWASP Cheat Sheet Series
JSON Web Token Security Cheat Sheet PentesterLab - JSON Web Token Security Cheat Sheet
Injection Prevention Cheat Sheet Injection - OWASP Cheat Sheet Series
Microservices Security Cheat Sheet Microservices - OWASP Security Cheat Sheet
OWASP API Security Top 10 42Crunch - OWASP API Security Top 10
REST Assessment Cheat Sheet REST Assessment - OWASP Cheat Sheet Series
REST Security Cheat Sheet REST Security - OWASP Cheat Sheet Series


Author Name Description
HolyBugx another API Security checklist HolyTips: API security checklist
APIOps Cycles API audit checklist API Audit checklist.
Shieldfy API-Security-Checklist Checklist of the most important security countermeasures when designing, testing, and releasing your API.
API Mike, @api_sec API penetration testing checklist Common steps to include in any API penetration testing process.
Latish Danawale API Testing Checklist API Testing Checklist.
Inon Shkedy 31 days of API Security Tips This challenge is Inon Shkedy's 31 days API Security Tips.
Binary Brotherhood OAuth2: Security checklist OAuth 2.0 Threat Model Pentesting Checklist
Apollo GraphQL API — GraphQL Security Checklist 9 Ways To Secure your GraphQL API — GraphQL Security Checklist
LeapGraph GraphQL API - The Complete Vulnerability Checklist How to Secure a GraphQL API - The Complete Vulnerability Checklist
Lokesh Gupta REST API Security Essentials REST API Tutorial blog entry.


Name Description
APIsecure The world's first conference dedicated to API threat management; bringing together breakers, defenders, and solutions in API security.

Deliberately vulnerable APIs

Name Author Description
APISandbox APISecurity Community Pre-Built Vulnerable Multiple API Scenarios Environments Based on Docker-Compose.
Bookstore sidchn TryHackMe room - A Beginner level box with basic web enumeration and REST API Fuzzing.
crAPI OWASP completely ridiculous API (crAPI)
Damn Vulnerable GraphQL Application dolevf Damn Vulnerable GraphQL Application is intentionally vulnerable implementation of Facebook's GraphQL technology to learn and practice GraphQL Security.
Damn Vulnerable Micro Services ne0z This is a vulnerable microservice written in many languages to demonstrating OWASP API Top Security Risk (under development).
Damn Vulnerable RESTaurant API Game theowni Damn Vulnerable Restaurant is an intentionally vulnerable Web API game for learning and training purposes dedicated to developers, ethical hackers and security engineers.
Damn Vulnerable Web Services snoopysecurity Damn Vulnerable Web Services is a vulnerable web service/API/application that we can use to learn webservices/API vulnerabilities.
Generic-University InsiderPhD Vulnerable API with Laravel App
node-api-goat layro01 A simple Express.JS REST API application that exposes endpoints with code that contains vulnerabilities.
Pixi DevSlop The Pixi module is a MEAN Stack web app with wildly insecure APIs!
poc-graphql righettod Research on GraphQL from an AppSec point of view.
REST API Goat optiv This is a "Goat" project so you can get familiar with REST API testing.
VAmPI erev0s Vulnerable REST API with OWASP top 10 vulnerabilities for APIs
vAPI roottusk vAPI is Vulnerable Adversely Programmed Interface which is Self-Hostable API that mimics OWASP API Top 10 scenarios through Exercises.
vulnapi tkisason Intentionaly very vulnerable API with bonus bad coding practices.
vulnerable-graphql-api CarveSystems A very vulnerable implementation of a GraphQL API.
Websheep marmicode Websheep is an app based on a willingly vulnerable ReSTful APIs.
VulnerableApp4APISecurity Erdemstar This repository was developed using .NET 7.0 API technology based on findings listed in the OWASP 2019 API Security Top 10.

Design, Architecture, Development

Name Description
The API Specification Toolbox This Toolbox goal is to try and map out all of the different API specifications in use, as well as the services, tooling, extensions, and other supporting elements.
Understanding gRPC, OpenAPI and REST gRPC vs REST: Understanding gRPC, OpenAPI and REST and when to use them in API design
API security design best practices API security design best practices for enterprise and public cloud.
REST API Design Guide This design guide or style guide contains best practices suitable for most REST APIs.
How to design a REST API How to design a REST API? - Full guide tackling security, pagination, filtering, versioning, partial answers, CORS, etc.
Awesome REST A collaborative list of great resources about RESTful API architecture, development, test, and performance. Feel free to contribute to this ongoing list.
Collect API Requirements Collecting Requirements for your API with APIOps Cycles.
API Audit API Audit is a method to ensure APIs are matching the API Design guidelines. It also helps check for usability, security and API management platform compatibility.

Encyclopedias, Projects, Wikis and GitBooks

Author Name Description
@six2dez APIs Pentest Book APIs Pentest Book
@csbygb API Pentest tips CSbyGB's Pentips
cyprosecurity API Security Empire The API Security Empire Project aims to present unique attack & defense methods in the API Security field API Security Encyclopedia API Security Encyclopedia
@carlospolop Web API Pentesting HackTricks - Web API Pentesting
@carlospolop GraphQL HackTricks - GraphQL

Enumeration, Scanning and exploration steps

Name Description
Burp API enumeration Using Burp to Enumerate a REST API
ZAP scanning Scanning APIs with ZAP
ZAP exploring Exploring APIs with ZAP
w3af scanning Scan REST APIs with w3af


Name Description
Wallarm Free API Firewall Fast and light-weight API proxy firewall for request and response validation by OpenAPI specs.

Fuzzing, SecLists, Wordlists

Name Description
API names wordlist A wordlist of API names for web application assessments
API HTTP requests methods HTTP requests methods wordlist by @danielmiessler
API Routes Wordlists API Routes - Automated Wordlists provided by Assetnote
Common API endpoints Wordlist for common API endpoints.
Filenames by fuzz.txt Potentially dangerous files
Fuzzing APIs Fuzzing APIs chapter from "The Fuzzing Book".
GraphQL SecList It's a GraphQL list used during security assessments, collected in one place.
Hacking-APIs Wordlists and API paths by @hapi_hacker
Kiterunner Wordlists Kiterunner Wordlists provided by Assetnote
List of API endpoints & objects A list of 3203 common API endpoints and objects designed for fuzzing.
List of Swagger endpoints Swagger endpoints
SecLists for API's web-content discovery It is a collection of web content discovery lists for APIs used during security assessments.
GraphQL wordlist The only GraphQL wordlist you'll ever need. Operations, field names, type names... Collected on more than 60k distinct GraphQL schemas.

HTTP 101

Name Description
Know your HTTP Headers! HTTP Headers: a simplified and comprehensive table.
Know your HTTP Methods! HTTP Methods: a simplified and comprehensive table.
Know your HTTP Status codes! HTTP Status codes: a simplified and comprehensive table.
HTTP Status Codes is an easy to reference database of HTTP Status Codes with their definitions and helpful code references all in one place.
Know your HTTP * Well HTTP headers, media-types, methods, relations and status codes, all summarized and linking to their specification.

Mind maps

Author Name Description
Cypro AB API Pentesting - ATTACK Mind map: API Pentesting - ATTACK
Cypro AB API Pentesting - Recon Mind map: API Pentesting - Recon
Cypro AB GraphQL Attacking Mind map: GraphQL Attacking
Mufaddal Masalawala IDOR Techniques Mind map: IDOR Techniques
David Sopas MindAPI Organize your API security assessment by using MindAPI
Harsh Bothra XML attacks Mind map: XML attacks
Abhay Bhargav REST API defenses Mind map: REST API defenses


Author Name Description
42Crunch api security articles API Security Articles - The Latest API Security News, Vulnerabilities & Best Practices.
Dana Epp api hacker’s inner circle API Hacker’s Inner Circle Newsletter.

Other resources

Name Author Description
API Hacking Articles Dana Epp API Hacking Fundamentals, Tools, Techniques, Fails and Mindset articles.
API Security best practices guide Expedited Security API Security Best Practices MegaGuide
API Security: The Complete Guide Bright Security API Security, The Complete Guide
API Penetration Testing SecureLayer7 API Penetration Testing with OWASP 2017 Test Cases.
API Penetration Testing Report UnderDefense Anonymised API Penetration Testing Report - vendor sample template
API Pentesting with Swagger Files RhinoSecurityLabs Simplifying API Pentesting With Swagger Files.
API security path resources MindAPI Resources to help out in the API security path; diverse content from talks/webinards/videos, must read, writeups, bola/idors, oauth, jwt, rate limit, ssrf and practice entries.
API Security Testing Spherical Defence Principles of API Security Testing and how to perform a Security Test on an API.
Finding and Exploiting Web App APIs Bend Theory Finding and Exploiting Unintended Functionality in Main Web App APIs
How to Hack an API and Get Away with It SmartBear How to Hack an API and Get Away with It (Part 1 of 3).
How to Hack APIs in 2021 Detectify How to Hack APIs in 2021
How to Hack API in 60 minutes with Open Source Tools Wallarm How to Hack API in 60 minutes with Open Source Tools
GraphQL penetration testing YesWeHAck How to exploit GraphQL endpoint: introspection, query, mutations & tools.
Fixing the 13 most common GraphQL Vulnerabilities WunderGraph GraphQL Security Guide, Fixing the 13 most common GraphQL Vulnerabilities to make your API production ready.
Hacking APIs - Notes from Bug Bounty Bootcamp Aakash Choudhary My Notes on Hacking APIs from Bug Bounty Bootcamp.
SOAP Security Vulnerabilities and Prevention NeuraLegion SOAP Security, Top Vulnerabilities and How to Prevent Them.
API and microservice security PortSwigger What are API and microservice security?
Strengthening Your API Security Posture 42Crunch Strengthening Your API Security Posture – Ford Motor Company.
The Fault in Our Stars Tenchi Security Security Implications of AWS API Gateway Lambda Authorizers and IAM Wildcard Expansion.


Name Description
Everything API Hacking A video collection from Katie Paxton-Fear, @InsiderPhD, and other people creating a playlist of API hacking knowledge!
API hacking API hacking videos from @theXSSrat


Name Description
Hacking APIs The Hacker Mind Podcast: Hacking APIs
Hack Your API-Security Testing 21: Troy Hunt: Hack Your API-Security Testing.
The OWASP API Security Project Erez Yalon — The OWASP API Security Project
Episode 38 API Security Best Practices We Hack Purple Podcast Episode 38 API Security Best Practices.

Presentations, Videos

Name Description
pentesting-rest-apis Pentesting Rest API's by Gaurang Bhatnagar
Securing your APIs "How Secure are you APIs?" - Securing your APIs: OWASP API Top 10 2019, Case Study and Demo.
api-security-testing-for-hackers API Security Testing For Hackers
bad-api-hapi-hackers Bad API, hAPI Hackers!
disclosing-information-via-your-apis Hidden in Plain Site: Disclosing Information via Your APIs.
rest-in-peace-abusing-graphql REST in Peace: Abusing GraphQL to Attack Underlying Infrastructure.


Name Description
owasp api security project OWASP API Security Project - API Security Top 10

Security APIs

Name Description
awesome-security-apis A collective list of public JSON APIs for use in security.


Name Description
API Blueprint API Blueprint Specification
AscyncAPI AsyncAPI Specification
OpenAPI OpenAPI Specification
JSON API JSON API Specification
GraphQL GraphQL Specification
RAML RAML Specification


Name Description
BatchQL GraphQL security auditing script with a focus on performing batch GraphQL queries and mutations.
clairvoyance Obtain GraphQL API schema despite disabled introspection!
InQL InQL - A Burp Extension for GraphQL Security Testing.
graphinder Blazing fast GraphQL endpoints finder using subdomain enumeration, scripts analysis and bruteforce.
graphql-cop Security Auditor Utility for GraphQL APIs.
GraphQLmap GraphQLmap is a scripting engine to interact with a graphql endpoint for pentesting purposes.
graphql-path-enum Tool that lists the different ways of reaching a given type in a GraphQL schema.
graphql-playground GraphQL IDE for better development workflows (GraphQL Subscriptions, interactive docs & collaboration)
graphql-threat-matrix GraphQL threat framework used by security professionals to research security gaps in GraphQL implementations.
graphw00f graphw00f is GraphQL Server Engine Fingerprinting utility for software security professionals looking to learn more about what technology is behind a given GraphQL endpoint.
goctopus Blazing fast GraphQL discovery & fingerprinting toolbox.
graphql-armor The missing GraphQL security security layer for Apollo GraphQL and Yoga / Envelop servers
Akto API discovery, automated business logic testing and runtime detection
APICheck The DevSecOps toolset for REST APIs.
APIClarity Reconstruct Open API Specifications from real-time workload traffic seamlessly.
APIFuzzer Fuzz test your application using your OpenAPI or Swagger API definition without coding.
APIKit APIKit:Discovery, Scan and Audit APIs Toolkit All In One.
Arjun HTTP parameter discovery suite.
Astra Automated Security Testing For REST API's.
Automatic API Attack Tool Imperva's customizable API attack tool takes an API specification as an input, generates and runs attacks that are based on it as an output.
CATS CATS is a REST API Fuzzer and negative testing tool for OpenAPI endpoints.
Cherrybomb Stop half-done API specifications with a CLI tool that helps you avoid undefined user behaviour by validating your API specifications.
ffuf Fast web fuzzer written in Go.
fuzzapi Fuzzapi is a tool used for REST API pentesting anTnT-Fuzzerd uses API_Fuzzer gem.
gotestwaf An open-source project in Golang to test different web application firewalls (WAF) for detection logic and bypasses
kiterunner Contextual Content Discovery Tool.
Metlo Open-source API security tool to discover, inventory, test, and protect your APIs.
mitmproxy2swagger Automagically reverse-engineer REST APIs via capturing traffic
Optic Verify the accuracy of your OpenAPI 3.x spec using real traffic and automatically apply patches that keep it up-to-date
OFFAT The OWASP OFFAT tool autonomously assesses your API for prevalent vulnerabilities, though full compatibility with OAS v3 is pending. The project remains a work in progress, continuously evolving towards completion.
REST-Attacker Designed as a proof-of-concept for the feasibility of testing generic real-world REST implementations. Its goal is to provide a framework for REST security research.
RESTler RESTler is the first stateful REST API fuzzing tool for automatically testing cloud services through their REST APIs and finding security and reliability bugs in these services.
Swagger-EZ A tool geared towards pentesting APIs using OpenAPI definitions.
TnT-Fuzzer OpenAPI 2.0 (Swagger) fuzzer written in python. Basically TnT for your API.
wadl-dumper Dump all available paths and/or endpoints on WADL file.
fuzz-lightyear A pytest-inspired, DAST framework, capable of identifying vulnerabilities in a distributed, micro-service ecosystem through chaos engineering testing and stateful, Swagger fuzzing.
Wsdler WSDL Parser extension for Burp.
wsdl-wizard WSDL Wizard is a Burp Suite plugin written in Python to detect current and discover new WSDL (Web Service Definition Language) files.
dredd Language-agnostic HTTP API Testing Tool
getallurls (gau) Fetch known URLs from AlienVault's Open Threat Exchange, the Wayback Machine, and Common Crawl. 
SoapUI SoapUI is a free and open-source cross-platform functional testing solution for APIs and web services.
Step CI Open-source framework for API Quality Assurance, which tests REST, GraphQL and gRPC automated and from Open API spec.
unfurl Pull out bits of URLs provided on stdin
noir Noir is an attack surface detector form source code.

Training, Workshops, Labs

Author Name Description
APIsec API Security University APIsec University provides training courses for application security professionals
Corey Ball Hacking APIs Hacking APIs: workshop
Escape API Security Academy API Security Academy, by escape
Grant Ongers API top 10 walkthrough OWASP API Top 10 CTF Walk-through.
Hacker101 GraphQL challenges GraphQL Week on The Hacker101 Capture the Flag Challenges
Karel Husa BankGround API Banking-like REST and GraphQL API for training/learning purposes.
Kontra OWASP Top 10 for API Is a series of free interactive application security training modules that teach developers how to identify and mitigate security vulnerabilities in their web API endpoints.
OWASP-SKF GraphQL Labs GraphQL Labs on the OWASP Security Knowledge Framework
Pentester Academy API security, REST Labs Pentester Academy - attack & defense
ShipFast Practical API Security Walkthrough Learn practical Mobile and API security techniques: API Key, Static and Dynamic HMAC, Dynamic Certificate Pinning, and Mobile App Attestation.
Wesley Thijs Let's build an API to hack API Hacking Excercises by @TheXSSrat


Author Name Description
42Crunch @apisecurityio API security news, standards, vulnerabilities, tools.
Corey J. Ball @hAPI_hacker Cybersecurity consulting manager
Dana Epp @ddǝɐuɐp Microsoft Security MVP
David Sopas @dsopas Security Researcher
Katie Paxton-Fear @InsiderPhD Lecturer and hacker
Wesley Thijs @theXSSrat Ethical hacker


  1. The purpose of this repository is to collect API Security tools and resources. The preference goes to open-source or community editions tools, creative commons resources, and resources created by the community for the benefit of the community. The exception is in the book's topic, where some referenced items may have an associated cost.

  2. Other content vendor-specific, ads, commercial, restricted, free trial, freemium, closed-source (proprietary software), products or services provided in exchange for private user details are considered out of scope pull requests.

  3. Content or materials not directly related to API security, hunting bugs in APIs, hardening or hacking APIs may also be discarded.

  4. Duplicated content or entries that do not provide additional or relevant content compared with existing entries may also not be considered.

  5. Out of scope pull requests will be probably discarded, closed or ignored without notice.

  6. The twitter section reference authors of books, videos, workshops, courses, newsletters or content already existent on this repository. This is a bit subjective and may not be consensual at all! Even though it can bring division I decided to add the section since it might be useful to some of the visitors of the repository.

  7. If you are an author of tools/content and your description is not accurate on twitter or other section let me know!

If you think your content fits the above purposes, please

  • create a new branch
  • change
  • push the new changes
  • open a pull request

For more details check GitHub quickstart/contributing-to-projects


A collection of awesome API Security tools and resources. The focus goes to open-source tools and resources that benefit all the community.








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