Open source focus

Open Source Alternatives to Solana Vector Fun

16 open source Vector Database options similar to Solana Vector Fun, 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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Faremeter22
Fintech
Open-source framework enabling autonomous AI agents to make frictionless web3 payments via web2 infrastructure.
Open source · Self-hostable
Cardano55
Blockchain
A secure, scalable, and sustainable proof-of-stake blockchain platform for decentralized applications and smart contracts.
Open source · Self-hostable
Blockmesh Network31
BlockchainIsrael, Israel
Decentralized data infrastructure and AI framework for AI training, inference, and ecosystem intelligence.
Open source · Self-hostable
Qdrant71
Vector DatabaseBerlin, Germany$87.5M
High-performance, open-source vector search engine built in Rust for production-grade AI and machine learning workloads.
Open source · Self-hostable
ChainSafe Systems57
Web3Toronto, Canada$18.8M
Leading Web3 infrastructure firm specializing in protocol engineering, cross-chain interoperability, and Web3 gaming.
Open source · Self-hostable
Archimedes52
Fintech$7.3M
Open-source lending protocol for superior capital efficiency in Decentralized Finance (DeFi).
Open source · Self-hostable
Faiss by Meta28
AI Foundation & Compute
Open-source library by Meta AI for efficient similarity search and clustering of dense vectors.
Open source · Self-hostable
Novapanda20
Fintech
VDC verifiable delivery certificates with open protocols, open source specifications, and mock trial nodes online.
Open source
x402scan10
Fintech
An ecosystem explorer and analytics platform for the x402 protocol and agentic commerce.
Open source · Self-hostable
DIMO59
Connected VehiclesBrooklyn, United States$20.5M
DIMO is a decentralized vehicle data network that empowers car owners to collect, control, and monetize their vehicle data, enabling developers to build mobility applications.
Open source
Akash Network56
DePINSan Francisco, United States$2.0M
Decentralized cloud marketplace for compute resources, leveraging blockchain technology (DePIN).
Open source · Self-hostable
Visual Layer50
DatabaseTel Aviv, Israel$7.0M
AI-powered database for visual data, enabling intelligent search and analysis of images and videos.
Open source · Self-hostable
Spice AI40
Databaseתל אביב - יפו, Israel
Ground AI in enterprise data with zero ETL. Spice is an open-source SQL query & hybrid search engine built for data-intensive apps & AI agents.
Open source · Self-hostable
Open Bitcoin Tracker23
Fintech
A privacy-focused, open-source Android app to track Bitcoin value without accounts or analytics.
Open source · Self-hostable
Ainativex7
AI Infrastructure
An open-source AI IDE and infrastructure platform for building and deploying AI agents and applications.
Open source
Chroma61
Artificial IntelligenceSan Francisco, United States$20.3M
Open-source AI-native vector database that makes knowledge and memory pluggable for LLM applications.
Open source · Self-hostable

Company	Sector	License	HQ	Funding	Score
FaremeterOpen-source framework enabling autonomous AI agents to make frictionless web3 payments via web2 infrastructure.	Fintech	Open source · Self-hostable	—	—	22
CardanoA secure, scalable, and sustainable proof-of-stake blockchain platform for decentralized applications and smart contracts.	Blockchain	Open source · Self-hostable	—	—	55
Blockmesh NetworkDecentralized data infrastructure and AI framework for AI training, inference, and ecosystem intelligence.	Blockchain	Open source · Self-hostable	Israel, Israel	—	31
QdrantHigh-performance, open-source vector search engine built in Rust for production-grade AI and machine learning workloads.	Vector Database	Open source · Self-hostable	Berlin, Germany	$87.5M	71
ChainSafe SystemsLeading Web3 infrastructure firm specializing in protocol engineering, cross-chain interoperability, and Web3 gaming.	Web3	Open source · Self-hostable	Toronto, Canada	$18.8M	57
ArchimedesOpen-source lending protocol for superior capital efficiency in Decentralized Finance (DeFi).	Fintech	Open source · Self-hostable	—	$7.3M	52
Faiss by MetaOpen-source library by Meta AI for efficient similarity search and clustering of dense vectors.	AI Foundation & Compute	Open source · Self-hostable	—	—	28
NovapandaVDC verifiable delivery certificates with open protocols, open source specifications, and mock trial nodes online.	Fintech	Open source	—	—	20
x402scanAn ecosystem explorer and analytics platform for the x402 protocol and agentic commerce.	Fintech	Open source · Self-hostable	—	—	10
DIMODIMO is a decentralized vehicle data network that empowers car owners to collect, control, and monetize their vehicle data, enabling developers to build mobility applications.	Connected Vehicles	Open source	Brooklyn, United States	$20.5M	59
Akash NetworkDecentralized cloud marketplace for compute resources, leveraging blockchain technology (DePIN).	DePIN	Open source · Self-hostable	San Francisco, United States	$2.0M	56
Visual LayerAI-powered database for visual data, enabling intelligent search and analysis of images and videos.	Database	Open source · Self-hostable	Tel Aviv, Israel	$7.0M	50
Spice AIGround AI in enterprise data with zero ETL. Spice is an open-source SQL query & hybrid search engine built for data-intensive apps & AI agents.	Database	Open source · Self-hostable	תל אביב - יפו, Israel	—	40
Open Bitcoin TrackerA privacy-focused, open-source Android app to track Bitcoin value without accounts or analytics.	Fintech	Open source · Self-hostable	—	—	23
AinativexAn open-source AI IDE and infrastructure platform for building and deploying AI agents and applications.	AI Infrastructure	Open source	—	—	7
ChromaOpen-source AI-native vector database that makes knowledge and memory pluggable for LLM applications.	Artificial Intelligence	Open source · Self-hostable	San Francisco, United States	$20.3M	61