Open source focus

Open Source Alternatives to Knowledge Engine

5 open source AI Infrastructure options similar to Knowledge Engine, ranked by named competitors first, sector overlap, and our 0-100 AI-readiness score. Every company listed publishes its source: each one carries an open source sector tag and a public GitHub repository.

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Causari10
Agentic AI
Causari provides structured causal knowledge to AI agents for tracing cause and effect, finding historical patterns, and searching for impactful events.
Open source · Self-hostable
Data Commons AI35
Data PlatformMountain View, United States$15.0M
Google's open-source platform that organizes and makes public data accessible and useful for societal challenges through a unified knowledge graph.
Open source · Self-hostable
Apache Cassandra10
Database
Open-source, distributed NoSQL database for handling large-scale, high-availability data without compromising performance.
Open source · Self-hostable
Bitwarden57
CybersecuritySanta Barbara, United States$100.0M
Open-source password manager for individuals, teams, and businesses.
Open source · Self-hostable
Ghost53
Publishing PlatformSingapore, Singapore$7.4M
An open-source platform for professional publishers to create, share, and grow a business around their content.
Open source · Self-hostable

Company	Sector	License	HQ	Funding	Score
CausariCausari provides structured causal knowledge to AI agents for tracing cause and effect, finding historical patterns, and searching for impactful events.	Agentic AI	Open source · Self-hostable	—	—	10
Data Commons AIGoogle's open-source platform that organizes and makes public data accessible and useful for societal challenges through a unified knowledge graph.	Data Platform	Open source · Self-hostable	Mountain View, United States	$15.0M	35
Apache CassandraOpen-source, distributed NoSQL database for handling large-scale, high-availability data without compromising performance.	Database	Open source · Self-hostable	—	—	10
BitwardenOpen-source password manager for individuals, teams, and businesses.	Cybersecurity	Open source · Self-hostable	Santa Barbara, United States	$100.0M	57
GhostAn open-source platform for professional publishers to create, share, and grow a business around their content.	Publishing Platform	Open source · Self-hostable	Singapore, Singapore	$7.4M	53