Hybrid Search Python Packages

flashrank

Lite & Super-fast re-ranking for your search & retrieval pipelines. Supports SoTA Listwise and Pairwise reranking based on LLMs and cross-encoders and more. Created by Prithivi Da, open for PRs & Collaborations.

mind-mem

v3.7.0 — Persistent, auditable, contradiction-safe memory for coding agents. HTTP/REST auth fail-closed by default. Cross-platform atomic rollback (Linux/macOS/Windows). 71 MCP tools, 17 AI clients, hybrid BM25+vector+RRF, mind-mem:4b (Ollama). LoCoMo 86.33 conv-0 (Mistral, +8.4 vs published).

trw-memory

Persistent memory engine with hybrid retrieval, tiered storage, and semantic dedup for AI agents

mnemo-mcp

Persistent AI memory with hybrid search and embedded sync - open, free, unlimited

pyreindexer

Embeddable, in-memory, document-oriented database with a high-level Query builder interface.

m3-memory

Local-first Agentic Memory Layer Framework for MCP Agents and Multiple Computers • Over 60 tools • Hybrid search (FTS5 + vector + MMR) • GDPR • 100% local

inferedge-moss

Official Repo of Moss

knowledge-rag

Drop docs, search instantly from Claude Code — 12 MCP tools, 20 format parsers, hybrid search + reranking. Zero servers, zero API keys, 100% local.

cocosearch

Local-first hybrid semantic code search tool. Indexes codebases into PostgreSQL with pgvector embeddings via Ollama, combines vector similarity + keyword search with RRF fusion. Supports 30+ languages. Features CLI, MCP server, WEB dashboard and interactive REPL.

m3serve

Optimised BAAI/bge-m3 serving with dense + sparse + ColBERT embeddings, async dynamic batching and pipeline GPU inference

seeklink

SeekLink — hybrid semantic search for markdown vaults. Four-channel RRF fusion, MLX reranker, native CJK support. Fully local.

vearch

A library for efficient similarity search and storage of deep learning vectors.

qql-cli

SQL-like query language and CLI for Qdrant vector search engine

flamehaven-filesearch

FLAMEHAVEN FileSearch - Open source semantic document search with multi-provider LLM support (Gemini, OpenAI, Claude, Ollama)

moss

Official Repo of Moss

graph-tool-call

Graph-based tool retrieval for LLM agents — 248 tools → 82% accuracy, 79% fewer tokens. Zero dependencies. OpenAPI / MCP / LangChain.

code-weaver

Semantic code search for AI agents — 166+ languages, hybrid search, works offline

laurus

Lexical Augmented Unified Retrieval Using Semantics

groundmemory

Persistent identity and memory across AI tools - mcp-native, local-first, framework-agnostic, production-ready.

bayesian-bm25

Bayesian probability transforms for BM25 retrieval scores

kb-arena

Benchmark 9 retrieval architectures on your documentation — find which KB architecture fits your data

memweave

Agentic memory you can read, search, and git diff

ledgermind

​LedgerMind — an autonomous living memory for AI agents. It self-heals, resolves conflicts, distills experience into rules, and evolves without human intervention. SQLite + Git + reasoning layer. Perfect for multi-agent systems and on-device deployment.

mcp-skillset

Dynamic RAG-powered skills service for code assistants via MCP - Vector + Knowledge Graph hybrid search for intelligent skill discovery