Cyber Library 1 is a community-maintained, structured cybersecurity knowledge base with six learning tracks, offering a public MCP server for AI assistants with no key or account required. For specific cybersecurity tasks such as supply-chain bills of materials, security scanning, or cryptographic primitives, the alternatives below cover those jobs.

1. 1

   Cyber Librarycyberlibrary.comwebsite read, tools not yet checked

   Structured cybersecurity learning knowledge base, from networking foundations to attacker mindset, exposed through a public MCP server so AI assistants can search and read it 1.

   WebsiteDocs

   official:MCP server · Cyber Library

2. 2

   CycloneDX Bill of Materials Standardcyclonedx.orgverified and signed

   Standard for software, hardware and other bills of materials that supports supply-chain risk reduction and vulnerability disclosure reports 2.

   WebsiteDocs

   for agents: library · OWASP · of

3. 3

   GitHubgithub.comverified and signed

   Developer platform with a GitHub MCP server and a security-review skill that scans codebases for security issues by tracing data flows 313.

   WebsiteDocsPricingGet started

   official:CLI · github-mcp-serverskill · add-community-extensionskill · git-commitskill · acquire-codebase-knowledge+2,563 community tools built for it

   for agents: github-release · python-pypi-package-builder · security-review

4. 4

   CyCAT.orgcycat.orgverified and signed

   Cybersecurity Resource Catalogue mapping tools, rules, playbooks, processes and controls into one searchable catalogue, with search and propose actions 414.

   WebsiteDocs

   for agents: get_search · get_namespacegetall · post_propose

5. 5

   Cryptographycryptography.iowebsite read, tools not yet checked

   Python library of high-level recipes and low-level interfaces to cryptographic algorithms such as symmetric ciphers and message digests 5.

   WebsiteDocs

   +4 community tools built for it