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Nuclei is a fast, customizable vulnerability scanner powered by the global security community and built on a simple YAML-based DSL, enabling collaboration to tackle trending vulnerabilities on the internet. It helps you find vulnerabilities in your applications, APIs, networks, DNS, and cloud configurations.
Internet-scale OpenID Certified™ OpenID Connect and OAuth2.1 provider that integrates with your user management through headless APIs. Solve OIDC/OAuth2 user cases over night. Consume as a service on Ory Network or self-host. Trusted by OpenAI and many others for scale and security. Written in Go.
In-depth attack surface mapping and asset discovery
Fast passive subdomain enumeration tool.
The system of action for AI-native cybersecurity—where intent becomes governed execution, evidence becomes operational memory, and every operation improves the next.
Unified Policy as Code
Encrypted overlay filesystem written in Go
Cerbos is an open-core authorization management platform for authorizing every identity and governing every action across applications, gateways, workloads, and AI agents.
An OOB interaction gathering server and client library
Digging Deeper....
Easy to use OpenID Connect client and server library written for Go and certified by the OpenID Foundation
BKN Foundry is the Ontology back-end foundation of OpenBKN. It transforms ontology-driven business semantics into runtime services: data, logic, actions, security governance, and observability.
Discover internet-wide misconfigurations while drinking coffee
Content discovery and fuzzing with HTTP/3 support (100k requests per second)
Bind/Reverse Shells, SOCKS, etc over Tor in Golang
Local-first policy gateway for coding agents. Allow, review, or block MCP, shell, SQL, GitHub, and HTTP actions with scoped credentials and signed evidence.
passfab-unlocker: Offline Password Recovery Desktop Software with Full Feature Set
Go client for Meta's Threads - OAuth 2.0, rate limiting, full API coverage, production-ready