Best AI RAG & Memory Tools (2026)

supermemory

RAG & Memory

Agents need memory. supermemory is building the default engine for memory and continual learning for agents.

WonderSearch

RAG & Memory

Semantic search for your data, powered by WonderSearch. Serverless, pay per query, with no upfront ingestion or embedding fees.

EverMind

RAG & Memory

EverMind empowers AI with continuous, near-infinite memory and long-term identity. Discover EverOS, open-source memory infrastructure, SOTA benchmarks, and next-gen AI models that evolve, understand, and collaborate beyond today’s stateless tools.

Brain

RAG & Memory

Brain is a governed AI knowledge platform for companies. It connects the tools your team already uses, and lets your people and your AI agents ask questions across that knowledge — where every answer respects existing permissions and every access is recorded.

Sentience

RAG & Memory

Sentience creates a unique model of your mind: an AI that remembers everything, thinks like you, and operates alongside you. It turns your email, meetings, messages, and screen into one private, encrypted memory you own.

Resurf

RAG & Memory

Resurf is a local-first personal knowledge base and bookmark manager for Mac, iPhone and iPad. Save notes, bookmarks, screenshots, PDFs and voice memos into one library, search it offline by words or meaning, and hand that context to Claude, Cursor or Codex over MCP and a CLI. Opt-in AI summaries and tagging use your own API key or local models.

Polygres

RAG & Memory

Make Reality Queryable. Polygres combines PostgreSQL hosting with native graph traversal, HNSW vector search, and hybrid retrieval APIs. The all-in-one database platform.

Hivemind

RAG & Memory

One command, every agent. Persistent shared memory for Claude Code, OpenClaw, Codex, Cursor, Hermes, and pi. Install with npm and Hivemind auto-detects every assistant on your machine.

Unabyss

RAG & Memory

The universal context layer for AI. Self-updating, available via MCP to every agent and LLM you use, segmented by default.

ZeroEntropy

RAG & Memory

ZeroEntropy trains small, specialized AI models — state-of-the-art rerankers, embeddings, and custom-trained models for production AI systems. Higher accuracy, lower latency, lower cost than the generalist alternatives.

AgentMemory

RAG & Memory

#1 Persistent memory for AI coding agents based on real-world benchmarks - rohitg00/agentmemory

Onyx AI

RAG & Memory

The open-source AI enterprise search platform that helps teams find information across all company data.

Airweave

RAG & Memory

Airweave is an open-source context retrieval layer that lets AI retrieve relevant context from apps and databases by acting as a shared information retrieval layer between AI systems and data sources.

HydraDB

RAG & Memory

Context infrastructure that makes your AI intelligent, stateful, and amazing.

ByteRover

RAG & Memory

A memory layer to persist structured, evolving knowledge across agents, with up to 92.19% retrieval accuracy - best on the market.

CogniMemo

RAG & Memory

CogniMemo is a universal, AI-powered memory infrastructure that helps AI systems remember context, learn from past interactions, and improve over time. Built to work across any model, product, or stack, with user-controlled, permission-based memory.

Pieces

RAG & Memory

Pieces is your AI companion that captures live context from browsers to IDEs and collaboration tools, manages snippets and supports multiple llms - all while processing data locally for maximum control.

Ragie

RAG & Memory

Ragie is a fully managed RAG-as-a-Service platform. Launch RAG pipelines for LLMs—agents, retrieval with citations, real-time indexing. Free developer tier.

Cognee

RAG & Memory

Cognee is an open source AI memory engine. Try it today to find hidden connections in your data and improve your AI infrastructure.

Pulse

RAG & Memory

Pulse understands your complex data

MemGPT

RAG & Memory

LLMs with self-editing memory for unbounded context

Mem0

RAG & Memory

Mem0 is a self-improving memory layer for LLM applications, enabling personalized AI experiences that save costs and delight users.

Zep

RAG & Memory

Equip your agents with the knowledge to complete tasks, from the mundane to monumental.

Weaviate

RAG & Memory

Bring AI-native applications to life with less hallucination, data leakage, and vendor lock-in

Milvus

RAG & Memory

Open-source vector database built for GenAI applications. Install with pip, perform high-speed searches, and scale to tens of billions of vectors.

Qdrant

RAG & Memory

Qdrant is an Open-Source Vector Database and Vector Search Engine written in Rust. It provides fast and scalable vector similarity search service with convenient API.

Chroma

RAG & Memory

Chroma is the open-source AI application database. Batteries included.

Letta

RAG & Memory

Advancing the frontier of AI systems with memory

Guru

RAG & Memory

Guru seamlessly connects your chats, apps, and docs into one single source of truth with our all-in-one knowledge platform for enterprise search, knowledge base, wiki, and intranet.