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athens

Athens is no longer maintainted. Athens was an open-source, collaborative knowledge graph, backed by YC W21

siyuan

A self-hostable knowledge workspace supporting Markdown and agent collaboration.

Popularity
Repository stars6,30047,038Highest
7-day net stars——
Fork3963,095Highest
30-day trendInsufficient historyInsufficient history
Maintenance
Last push2023-02-032026-11-02
Maintenance notesNot verifiedUnknown
Repository created2020-03-312020-08-30
License & use
LicenseLicense not declaredAGPL-3.0 · Share derivative source
PricingPricing not verifiedPricing not verified
Basics
Browse by purposeKnowledge bases · Note takingKnowledge bases · Note taking · Self-hosted services
TypeApps & systemsApps & systems
SubcategoryOffice collaborationKnowledge bases
PlatformNot verifiedNot verified
Cost detailsCheck current official software, hosting, model and infrastructure pricing.Verify software, hosting, model and infrastructure costs against the current official documentation.
Pricing source——
First collected2026-11-032026-11-02
MetricRepository stars, not unique users or individual-skill installsRepository Stars, not unique users
LanguageClojureTypeScript
About this projectAthens is no longer maintainted. Athens was an open-source, collaborative knowledge graph, backed by YC W21A self-hostable knowledge workspace supporting Markdown and agent collaboration.
Measured at2026-11-02 18:59 UTC2026-11-02 19:28 UTC

License tiers are derived from metadata. Check obligations for your use; unknown does not mean prohibited. Ranked by repository stars, one position per repository. Stars and forks are not user counts.