Go · PyPI98Exceptionalhealth 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★ 16.8KSep 16, 2026
crates.io96Exceptionalhealth index
meilisearch/meilisearchA lightning-fast search engine API bringing AI-powered hybrid search to your sites and applications.
Rust★ 59.3KSep 16, 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
PyPI · npm · crates.io92Excellenthealth index
infino-ai/infinoEmbedded retrieval library built on Parquet. Fast, efficient, and scalable.
Rust★ 81↓ 8,183/moSep 18, 2026
crates.io · PyPI92Excellenthealth 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++★ 2,936Sep 17, 2026
crates.io · PyPI92Excellenthealth 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★ 34.6K↓ 61/moSep 16, 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
PyPI91Excellenthealth index
ggozad/haiku.ragAgentic RAG for local and self-hosted document search: hybrid retrieval, reranking and multimodal RAG on embedded LanceDB, with Docling parsing and an MCP server
Python★ 622↓ 9,960/moOct 8, 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★ 683Sep 18, 2026
PyPI91Excellenthealth index
zilliztech/memsearchA persistent, unified memory layer for all your AI agents (e.g. Claude Code, Codex, DSH), backed by Markdown and Milvus.
Python · JavaScript · Shell★ 2,584Sep 10, 2026
PyPI · npm88Excellenthealth index
n24q02m/mnemoPersistent AI memory with hybrid search and embedded sync. Open, free, unlimited.
Python★ 11↓ 7,167/moOct 5, 2026
PyPI · npm88Excellenthealth index
n24q02m/mnemo-mcpPersistent AI memory with hybrid search and embedded sync. Open, free, unlimited.
Python★ 10↓ 2,252/moSep 10, 2026
PyPI · npm87Excellenthealth index
lyonzin/knowledge-ragLocal RAG MCP server for Claude Code — hybrid search (semantic + BM25), cross-encoder reranking, 13 MCP tools, 20 format parsers. Zero external servers, zero API keys.
Python★ 290↓ 2,794/moOct 4, 2026
PyPI86Excellenthealth index
Python★ 10↓ 19.2K/moOct 16, 2026
PyPI86Excellenthealth index
priya-sundaram-dev/whooshFast, pure-Python full-text indexing and search. Actively maintained continuation of Whoosh / whoosh-reloaded. Install: pip install whoosh3
Python★ 34↓ 4,689/moSep 11, 2026
npm86Excellenthealth index
shinpr/mcp-local-ragLocal-first RAG server for developers. Semantic + keyword search for code and technical docs. Works with MCP or CLI. Fully private, zero setup.
TypeScript★ 400↓ 17K/moSep 19, 2026
npm84Excellenthealth index
oomkapwn/enquire-mcpThe #1 Obsidian MCP for AI memory — freshness-aware, cited, local-first and read-only by default. Dataview, Bases, PDFs, every agent.
TypeScript · JavaScript★ 33↓ 2,768/moSep 18, 2026
npm83Excellenthealth index
aliasunder/vault-cortexStandalone MCP server for Obsidian vaults — hybrid search, structured memory, task management, files, OAuth 2.1. Run locally, self-host, or one-click deploy for remote access.
TypeScript★ 31↓ 718/moOct 21, 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★ 25↓ 3,861/moSep 17, 2026
PyPI · crates.io81Excellenthealth index
cognica-io/uqa-engineEmbeddable Rust query engine unifying relational, full-text, vector, graph, and probabilistic retrieval under one typed algebra.
Rust★ 6↓ 4,183/moOct 11, 2026
npm81Excellenthealth index
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★ 60↓ 17.5K/moSep 16, 2026
npm · PyPI78Goodhealth index
kitfunso/hippo-memoryBiologically-inspired memory for AI agents. Decay, retrieval strengthening, consolidation. Zero dependencies.
TypeScript★ 742↓ 3,738/moSep 13, 2026
crates.io77Goodhealth index
Dicklesworthstone/frankensearchTwo-tier hybrid search for Rust: sub-millisecond initial results via potion-128M, quality-refined rankings in 150ms via MiniLM-L6-v2. Combines lexical (Tantivy BM25) and semantic (vector cosine) search with Reciprocal Rank Fusion. Progressive iterator API, f16 SIMD vector index, feature-gated compilation.
Rust★ 85↓ 2,769/moOct 7, 2026
PyPI · crates.io77Goodhealth index
Egoist-Machines/LodeDBWorld's fastest and most compact embedded vector database: exact by default, multimodal, local-first, and GPU-accelerated
Python · Rust★ 98Sep 16, 2026
TypeScript★ 103↓ 3,502/moSep 10, 2026
Restream/reindexerEmbeddable, in-memory, document-oriented database with a high-level Query builder interface.
C++ · Lex★ 810Sep 11, 2026
PyPI · npm75Goodhealth index
SonAIengine/graph-tool-callGraph-based tool retrieval for LLM agents — 248 tools → 82% accuracy, 79% fewer tokens. Zero dependencies. OpenAPI / MCP / LangChain.
Python★ 17↓ 2,636/moSep 15, 2026
crates.io73Goodhealth index
SeekStorm/SeekStormSeekStorm: vector & lexical search - in-process library & multi-tenancy server, in Rust.
Rust★ 1,909↓ 713/moSep 9, 2026
Go · npm73Goodhealth 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★ 28Oct 20, 2026