Skip to content
Cyber Library logo

Cyber Library

Hosts a community-maintained knowledge base of structured cybersecurity learning pages, organized as one tree with an MCP server for AI assistants.

Actively maintained

KnowledgeOpen source
cyberlibrary.com ↗
Open cyberlibrary.comAlternativesSet it up for my teamIs Cyber Library yours? Claim the card →
At a glanceswept Oct 15, 2026

≈ 1visits/mo

Use not read yet · estimate, read Oct 15, 2026

For
Learners building cybersecurity knowledge from networking basics up, and people doing authorized security testing.
Activity
Actively maintainedrelease 7 days ago
Runs as
API
Used for
  • study web and network attack techniques for authorized testing
  • trace a security topic through the linked library structure
  • search the library from an AI assistant via MCP
Worth knowingcomputed from what we read · each with its source
  • On the web since 2002, older than 99% of its shelfINITE Atlas
  • Has an MCP server (1 in the registry)public registry →
The companyeach fact with its source · read Oct 21, 2026
Your datawhat they publish, each line with its page · read Oct 21, 2026

These are Cyber Library's own statements, read from its pages. We did not audit them. A line that is missing was not found on the pages we read; it does not mean the practice is absent.

How a program reaches itfound, not claimed · read Oct 21, 2026
  • MCP servercom.cyberlibrary/libraryverified in the MCP registry
  • Stateanswers, 6 toolschecked 2026-10-21
  • Address to connectwww.cyberlibrary.com/api/mcp
  • MCP docscyberlibrary.com/en/mcpthe vendor's page ↗

MCP server details →

This card as JSON, for your agent →

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.

Alternatives in Knowledgeby use, among tools still maintained

Figure and bar: visits/mo, estimate · year: online since

Compare Cyber Library with

Pick up to two.

All 10 alternatives to Cyber Library →

All Knowledge tools →

Not it? Say what you need

beta

Three tools from the Atlas for the job you describe, each with what fits and what does not.

From people who use itnot part of the reading

No notes yet. What do you use Cyber Library for?

Sign in to leave a note
Questions this page answers
  • What is Cyber Library?

    Hosts a community-maintained knowledge base of structured cybersecurity learning pages, organized as one tree with an MCP server for AI assistants. It is listed in the Atlas under Knowledge.

  • Who is Cyber Library for?

    Learners building cybersecurity knowledge from networking basics up, and people doing authorized security testing.

  • Is Cyber Library still maintained?

    Actively maintained: release 7 days ago.

  • Is Cyber Library safe?

    We do not audit vendors. What Cyber Library publishes, read 2026-10-21: GDPR stated on its privacy policy.

  • What are alternatives to Cyber Library?

    In Knowledge, by use: Craft Docs, Stashr, Dexi, Refyc, Kepos, Vida.

How we read a tool

No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.

  • Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
  • Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
  • Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
  • The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.

How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.

How we read every tool → · By INITE Atlas Desk