Open Source Radar
Radar · Category

Vector Databases & AI Memory

Where agents remember: vector stores, memory layers and similarity search engines.

SortTrendingMost starsNewest170 repos · page 1/6
thedotmack/
claude-mem

Persistent Context Across Sessions for Every Agent – Captures everything your agent does during sessions, compresses it with AI, and injects relevant context back into future sessions. Works with Claude Code, OpenClaw, Codex, Gemini, Hermes, Copilot, OpenCode + More

87k7.5kJavaScript
Mintplex-Labs/
anything-llm

Stop renting your intelligence. Own it with AnythingLLM. Everything you need for a powerful local-first agent experience

In catalog: AnythingLLM
63k6.9kJavaScript
mem0ai/
mem0

Universal memory layer for AI Agents

In catalog: Mem0
61k7.1kTypeScript
pathwaycom/
llm-app

Ready-to-run cloud templates for RAG, AI pipelines, and enterprise search with live data. 🐳Docker-friendly.⚡Always in sync with Sharepoint, Google Drive, S3, Kafka, PostgreSQL, real-time data APIs, and more.

59k1.4kJupyter Notebook
meilisearch/
meilisearch

A lightning-fast search engine API bringing AI-powered hybrid search to your sites and applications.

59k2.6kRust
MemPalace/
mempalace

The best-benchmarked open-source AI memory system. And it's free.

57k7.4kPython
run-llama/
llama_index

LlamaIndex is the leading document agent and OCR platform

51k7.7kPython
milvus-io/
milvus

Milvus is a high-performance, cloud-native vector database built for scalable vector ANN search

45k4.1kGo
VectifyAI/
PageIndex

📑 PageIndex: Document Index for Vectorless, Reasoning-based RAG

34k3.0kPython
qdrant/
qdrant

Qdrant - High-performance, massive-scale Vector Database and Vector Search Engine for the next generation of AI. Also available in the cloud https://cloud.qdrant.io/

33k2.5kRust
onyx-dot-app/
onyx

Open Source AI Platform - AI Chat with advanced features that works with every LLM

In catalog: Onyx
31k4.2kPython
NirDiamant/
RAG_Techniques

This repository showcases various advanced techniques for Retrieval-Augmented Generation (RAG) systems. Each technique has a detailed notebook tutorial.

28k3.5kJupyter Notebook
topoteretes/
cognee

Cognee is the open-source AI memory platform for agents. Give your AI agents persistent long-term memory across sessions with a self-hosted knowledge graph engine.

28k2.7kPython
rohitg00/
agentmemory

#1 Persistent memory for AI coding agents based on real-world benchmarks

25k2.1kTypeScript
humanlayer/
12-factor-agents

What are the principles we can use to build LLM-powered software that is actually good enough to put in the hands of production customers?

24k1.8kTypeScript
screenpipe/
screenpipe

YC (S26) | AI that knows what you've seen, said, or heard. Records everything you do, say, hear 24/7, local, private, secure. Connect to OpenClaw, Hermes agent and 100+ apps

20k1.9kRust
vectorize-io/
hindsight

Hindsight: Agent Memory That Learns

18k1.1kPython
Tencent/
WeKnora

Open-source LLM knowledge platform: turn raw documents into a queryable RAG, an autonomous reasoning agent, and a self-maintaining Wiki.

18k2.5kGo
weaviate/
weaviate

Weaviate is an open-source vector database that stores both objects and vectors, allowing for the combination of vector search with structured filtering with the fault tolerance and scalability of a cloud-native database​.

17k1.3kGo
memvid/
memvid

Memory layer for AI Agents. Replace complex RAG pipelines with a serverless, single-file memory layer. Give your agents instant retrieval and long-term memory.

16k1.4kRust
MemoriLabs/
Memori

Memori is agent-native memory infrastructure. A LLM-agnostic layer that turns agent execution and conversation into structured, persistent state for production systems. Built for enterprise, Memori works with the data infrastructure you already run, no rip-and-replace, and deploys across managed cloud, single-tenant cloud, VPC, and on-premises.

16k2.8kPython
alibaba/
zvec

A lightweight, lightning-fast, in-process vector database

15k917C++
NevaMind-AI/
memU

Personal memory for agents - fast memory retrieval, self-evolving skills, and lower cost.

14k1.0kPython
neuml/
txtai

💡 All-in-one AI framework for semantic search, LLM orchestration and language model workflows

13k845Python
StarTrail-org/
LEANN

[MLsys2026]: RAG on Everything with LEANN. Enjoy 97% storage savings while running a fast, accurate, and 100% private RAG application on your personal device.

13k1.1kPython
RyanCodrai/
turbovec

A vector index built on TurboQuant, written in Rust with Python bindings

13k1.1kPython
langchain4j/
langchain4j

LangChain4j is an idiomatic, open-source Java library for building LLM-powered applications on the JVM. It offers a unified API over popular LLM providers and vector stores, and makes implementing tool calling (including MCP support), agents and RAG easy. It integrates seamlessly with enterprise Java frameworks like Quarkus and Spring Boot.

13k2.4kJava
zilliztech/
claude-context

Code search MCP for Claude Code. Make entire codebase the context for any coding agent.

12k900TypeScript
simular-ai/
Agent-S

Agent S: an open agentic framework that uses computers like a human

12k1.4kPython
lancedb/
lancedb

Developer-friendly OSS embedded retrieval library for multimodal AI. Search More; Manage Less.

In catalog: LanceDB
11k947HTML
1 / 6Next

Startups in this space

analytics
Trendtrack$404,450 MRRCometly$199,430 MRRSimple Analytics$39,481 MRRDataFast$23,967 MRRSuperX$19,228 MRREnquiry Genie
Other categories
AgentsMCPCoding agentsLLMRAGInferenceBrowserWorkflows