Topics / #bm25

Bm25 projects on GitHub

Classic keyword ranking function used in full-text and vector search.

As of , the most-starred Bm25 projects on GitHub are hindsight (50.7K stars), qmd (30.5K stars) and context-mode (30.3K stars). GitHub.Locker tracks 20 Bm25 repositories with 204.1K stars combined. The fastest-growing on October 16 was xerj, with +1.2K stars in a day.

20Projects
204.1KStars in total
+2.5KStars in a day
Browse in the catalog →github.com/topics/bm25 ↗

Hot right now

Most stars gained in a day · Oct 16

+1.2K

xerj

xerj-org/xerj · ★ 6.9K

XERJ is a local-first search engine that automatically indexes any folder - code, docs, logs, PDFs - so an AI coding agent can pull the exact passage it needs instead of grepping or reading whole files into context, and it speaks the Elasticsearch API so existing clients work against it unchanged.

+441

hindsight

vectorize-io/hindsight · ★ 50.7K

Hindsight is an agent memory system that helps AI agents learn over time instead of just recalling raw conversation history, aiming to outperform RAG and knowledge-graph approaches on long-term memory tasks.

+432

context-mode

mksglu/context-mode · ★ 30.3K

Context Mode is an MCP server plus hooks that keeps bulky tool output out of your AI coding agent's context window (98% reduction), persists session memory, and enforces tool routing across 17 platforms.

+171

TencentDB-Agent-Memory

TencentCloud/TencentDB-Agent-Memory · ★ 29.5K

A team-level memory hub for AI agents. It turns conversations, docs, and code into four reusable memory assets — Chat Memory, Skills, Wiki, and CodeGraph — that agents across a team can share, govern, and equip.

The all-time top

20 projects · by stars

  1. #1 · vectorize-io/hindsight

    hindsight

    Hindsight is an agent memory system that helps AI agents learn over time instead of just recalling raw conversation history, aiming to outperform RAG and knowledge-graph approaches on long-term memory tasks.

    50.7K
  2. #2 · tobi/qmd

    qmd

    QMD is an on-device search engine for your personal knowledge: it indexes markdown notes, meeting transcripts, documentation and knowledge bases, and searches them with keywords or natural language.

    30.5K
  3. #3 · mksglu/context-mode

    context-mode

    Context Mode is an MCP server plus hooks that keeps bulky tool output out of your AI coding agent's context window (98% reduction), persists session memory, and enforces tool routing across 17 platforms.

    30.3K
  1. 4

    TencentDB-Agent-Memory

    29.5KTencentCloud/TencentDB-Agent-Memory · TypeScript

    A team-level memory hub for AI agents. It turns conversations, docs, and code into four reusable memory assets — Chat Memory, Skills, Wiki, and CodeGraph — that agents across a team can share, govern, and equip.

  2. 5

    claude-context

    12.6Kzilliztech/claude-context · TypeScript

    Claude Context is an MCP server that gives AI coding agents semantic search over your entire codebase, so they can pull relevant code straight into context instead of loading whole directories.

  3. 6

    manticoresearch

    12.1Kmanticoresoftware/manticoresearch · C++

    Manticore Search is an open-source search database built for full-text, vector, and hybrid search with real-time indexing and SQL support. It's positioned as a fast, cost-efficient alternative to Elasticsearch.

  4. 7

    production-agentic-rag-course

    9.8Kjamwithai/production-agentic-rag-course · Python

    This is a hands-on, week-by-week course that teaches you to build 'arXiv Paper Curator', a production-grade Retrieval-Augmented Generation (RAG) system that fetches academic papers, indexes them, and answers research questions about them.

  5. 8

    xerj

    6.9Kxerj-org/xerj · Rust

    XERJ is a local-first search engine that automatically indexes any folder - code, docs, logs, PDFs - so an AI coding agent can pull the exact passage it needs instead of grepping or reading whole files into context, and it speaks the Elasticsearch API so existing clients work against it unchanged.

  6. 9

    docker-agent

    4.5Kdocker/docker-agent · Go

    Docker Agent is a tool for building, running, and sharing AI agents using a declarative YAML config, with built-in tools and multi-agent orchestration — no code required.

  7. 10

    memory-lancedb-pro

    4.5KCortexReach/memory-lancedb-pro · JavaScript

    It is a LanceDB-backed memory plugin for OpenClaw agents that stores preferences, decisions, and project context, then auto-recalls them in future sessions instead of letting the agent forget everything between chats.

  8. 11

    agentic-rag-for-dummies

    4.3KGiovanniPasq/agentic-rag-for-dummies · Jupyter Notebook

    It is a learning project and modular codebase that shows how to build an Agentic RAG (Retrieval-Augmented Generation) system using LangGraph, including conversation memory and human-in-the-loop query clarification.

  9. 12

    agent-memory

    4.1Ktigerless-labs/agent-memory · Python

    agent-memory is a long-term memory runtime for AI agents — it stores memories as plain Markdown files (the source of truth) with a local SQLite/FTS5 index for fast ranked retrieval, so agents like Claude Code and Codex CLI keep what they learned across sessions.

  10. 13

    turnstone

    1.6Kturnstonelabs/turnstone · Python

    Turnstone is a self-hosted, local-first orchestration framework that gives LLMs real tools — shell, files, search, web, planning — and runs multi-turn agent conversations across your own cluster.

  11. 14

    leviathan

    826elstongun/leviathan · Rust

    Leviathan turns your records (JSONL, JSON, CSV/TSV, SQLite, or anything a database CLI can export) into a single-file, ranked full-text search index so an AI agent gets the few records that answer a question instead of grepping through raw history.

  12. 15

    okf-agent-memory

    814okf-memory/okf-agent-memory · Go

    OKF Agent Memory is a Git-native persistent memory layer for AI coding agents: it stores architectural decisions and project knowledge as plain Markdown files with YAML frontmatter directly in your repository, following the Open Knowledge Format (OKF) v0.2 spec, so context survives across sessions instead of vanishing when the context window closes.

  13. 16

    ownmem

    429grpcer/ownmem · JavaScript

    OwnMem is an open-source, Git-native memory system for AI coding agents like Claude Code, Codex, Cursor, and Gemini CLI. It stores project knowledge as reviewable Markdown inside your repo's .ownmem/ folder so multiple agents can share the same local, deterministic memory.

  14. 17

    sgrep

    307context-dot-dev/sgrep · Python

    sgrep is a local search tool that finds code and document passages using plain-English intent, combining semantic embeddings with ripgrep-style lexical matching, without any account or hosted index.

  15. 18

    memex

    266nicosuave/memex · Rust

    Memex indexes your local coding-agent conversations (Claude Code, Codex, Cursor, and more) so you can search past work, read original transcripts, and resume sessions in the original tool.

  16. 19

    php-fts

    142olivier-ls/php-fts · PHP

    php-fts is a self-contained full-text search engine written in pure PHP: no extensions, no external services, no dependencies. You get ranked search, typo tolerance, filters, facets, sorting and highlighting from files on disk.

  17. 20

    LLMSearchRecommender

    124alopatenko/LLMSearchRecommender

    A curated compendium of research papers, surveys, and industry engineering practices on using Generative AI and LLMs to build search engines, recommender systems, personalization engines, and question-answering systems.

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