Go · PyPI99Exceptionalhealth index
weaviate/weaviateWeaviate 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.
Go★ 16.7KAug 5, 2026
crates.io96Exceptionalhealth index
meilisearch/meilisearchA lightning-fast search engine API bringing AI-powered hybrid search to your sites and applications.
Rust★ 58.9KAug 4, 2026
crates.io96Exceptionalhealth index
paradedb/paradedbOne Postgres for your application data, full-text search, vector retrieval, and aggregations. Home of the pg_search extension.
Rust · PLpgSQL★ 9,204Aug 28, 2026
PyPI · Go · npm94Exceptionalhealth index
infiniflow/infinityThe AI-native database built for LLM applications, providing incredibly fast hybrid search of dense vector, sparse vector, tensor (multi-vector), and full-text.
C++★ 4,684Aug 28, 2026
PyPI91Excellenthealth index
MinishLab/sembleFast and Accurate Code Search for Agents. Uses 99% fewer tokens than grep+read
Python★ 5,966↓ 121.9K/moAug 28, 2026
PyPI · npm91Excellenthealth index
usemoss/mossThe retrieval layer for production AI systems. Lightning-fast (<10ms) search without vector databases. Built for browser, edge, on-device, and cloud.
Python · TypeScript★ 664↓ 143/moJul 31, 2026
crates.io · PyPI90Excellenthealth index
qdrant/qdrantQdrant - 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/
Rust★ 33.8K↓ 83/moAug 5, 2026
PyPI89Excellenthealth index
zilliztech/memsearchA persistent, unified memory layer for all your AI agents (e.g. Claude Code, Codex), backed by Markdown and Milvus.
Python · Shell★ 2,250↓ 102.3K/moJul 18, 2026
crates.io · PyPI88Excellenthealth index
oceanbase/seekdbThe AI-Native Search Database. Best for agent storage, it unifies vector, text, structured, and semi-structured data into a single engine. This all-in-one database makes agents smarter, easier to run, and more stable.
C++★ 2,857Aug 6, 2026
PyPI · npm86Excellenthealth index
n24q02m/mnemo-mcpPersistent AI memory with hybrid search and embedded sync. Open, free, unlimited.
Python★ 8Jul 18, 2026
npm83Excellenthealth index
aliasunder/vault-cortexStandalone MCP server that gives AI agents access to your Obsidian vault — hybrid search, memory, tasks, files, OAuth 2.1. Run locally, self-host, or one-click deploy for remote access.
TypeScript★ 16↓ 3,681/moSep 5, 2026
PyPI83Excellenthealth index
skynetcmd/m3-memoryLocal-first Memory Framework for AI Agents · 99.2% LongMemEval-S retrieval @ k=10 · Supports Claude · Antigravity · LangChain · Hermes · Gemini · OpenCode · OpenClaw · MCP-native and plugins · Hybrid search (FTS5 + vector + MMR) · GDPR · FIPS 140-3 ready · 100% local (fully offline) or cloud capable
Python★ 19↓ 8,178/moAug 9, 2026
npm · PyPI78Goodhealth index
kitfunso/hippo-memoryBiologically-inspired memory for AI agents. Decay, retrieval strengthening, consolidation. Zero dependencies.
TypeScript · JavaScript★ 717↓ 3,849/moJul 24, 2026
PyPI · npm77Goodhealth index
SonAIengine/graph-tool-callGraph-based tool retrieval for LLM agents — 248 tools → 82% accuracy, 79% fewer tokens. Zero dependencies. OpenAPI / MCP / LangChain.
Python★ 7↓ 2,636/moAug 1, 2026
TypeScript★ 88↓ 4,503/moJul 18, 2026
TypeScript★ 4↓ 3,501/moJul 22, 2026
Restream/reindexerEmbeddable, in-memory, document-oriented database with a high-level Query builder interface.
C++ · Lex★ 808Jul 19, 2026
npm · Go73Goodhealth index
nano-step/nano-brainPersistent memory & code intelligence server for AI coding agents. Deploy on VPS for shared memory across machines. Hybrid search (BM25 + pgvector), knowledge graph, impact analysis. 14 MCP tools. Works with Claude Code, OpenCode, Cursor, and any MCP client.
Go★ 8↓ 27.7K/moJul 23, 2026
sdsrss/claude-mem-litePersistent long-term memory for Claude Code via MCP — captures coding decisions, bugfixes, and context across sessions. Hybrid FTS5 + TF-IDF search with episode batching. Single SQLite DB, no external services. Alternative to claude-mem with 600x lower cost.
JavaScript★ 49↓ 8,084/moAug 3, 2026
ca-srg/ragentCLI tool for building production RAG systems from Markdown, CSV, and PDF documents using hybrid search (BM25 + vector) with OpenSearch. Features MCP server, Slack bot, Web UI, multi-source ingestion (local/S3/GitHub), and multi-provider embeddings (Bedrock/Gemini).
Go★ 12Jul 22, 2026
PyPI · crates.io67Goodhealth index
Egoist-Machines/LodeDBWorld's fastest and most compact embedded vector database: exact by default, multimodal, local-first, and GPU-accelerated
Python · Rust★ 90Aug 5, 2026
Go · npm67Goodhealth index
eleboucher/meminiGive any MCP-capable agent persistent memory: remember/recall over a tiered store with hybrid vector + keyword retrieval. Single Go binary, SQLite or Postgres, embedded admin UI.
Go · TypeScript · JavaScript★ 20Aug 22, 2026
npm · PyPI67Goodhealth index
mrsladoje/sweet-searchLocal code search for AI agents: six fast, purpose-built tools that return ranked answers, not raw grep. Because maybe grep isn't all you need... 🍬
JavaScript★ 21↓ 4,154/moJul 20, 2026
crates.io63Moderatehealth index
seekstorm/seekstormSeekStorm: vector & lexical search - in-process library & multi-tenancy server, in Rust.
Rust★ 1,899↓ 194/moJul 17, 2026
npm63Moderatehealth index
yoloshii/ClawMemOn-device memory layer for AI agents. Claude Code, Hermes and OpenClaw. Hooks + MCP server + hybrid RAG search.
TypeScript★ 194↓ 3,556/moJul 25, 2026
PyPI56Moderatehealth index
nevenincs/vaultspec-ragGPU-accelerated semantic search for your docs and source code - hybrid dense + sparse RAG on a local Qdrant backend, served to Claude Code and other MCP clients. The search companion to vaultspec-core.
Python★ 2Jul 28, 2026
npm56Moderatehealth index
TypeScript★ 1↓ 2,564/moJul 21, 2026
PyPI54Moderatehealth index
Artexis10/exomemSelf-hosted MCP server that makes your Obsidian/markdown vault searchable — text, PDFs, Office docs, images, audio — from any MCP client. Hybrid retrieval over a typed, governed corpus, sub-second at 50k notes; your files stay plain markdown.
Python★ 8Jul 26, 2026
PyPI54Moderatehealth index
Python★ 0↓ 4,147/moAug 23, 2026
npm50Moderatehealth index
ruvnet/agentdbVector memory that gets smarter every time your agent uses it.
TypeScript · HTML · JavaScript★ 80↓ 649.1K/moJul 23, 2026