RAG and search: tools for developers

Retrieval-augmented tools, vector databases, embeddings and semantic search. An entry can appear under several use cases when its topics or description provide several explicit signals.

116 entries in this view.

Tool ranking

Ranked by measured growth, normalized across sources. Raw values keep their source-specific window, shown under each tool; a change requires at least two snapshots from the last 7 days.

1
MindMemOS
Skill
ActiveLast commit 2 days ago · 2026-09-02
Python
- agent
- agent-memory
- agent-skills
- agentic
- dsh-plugin
githubcreated 2 months agomeasured growthOpen source ↗
Install git clone https://github.com/mindscale-noah/MindMemOS ~/.claude/skills/MindMemOS
975GitHub stars+13 (+1.4 %)
2
core-memory-kit
MCP
ActiveLast commit 1 day ago · 2026-09-03
Persistent per-project memory for Claude Code, Kiro, Cursor & Codex - plain markdown committed with your code, captured prompt-free, auto-injected at session start, recalled by meaning (local semantic search, zero API). Cross-project…
JavaScriptLicense: MIT
- agent-memory
- ai-agents
- ai-memory
- anthropic
- claude
githubcreated 3 months agomeasured growthOpen source ↗
7GitHub stars+1 (+16.7 %)
3
context-engineering
MCP
ActiveLast commit today · 2026-09-03
Context Engineering: Build Consistent, Accurate, Predictable AI Systems
PythonLicense: Apache-2.0
- agent-skills
- agentic-ai
- context-engineering
- generative-ai
- llm
githubcreated 10 months agomeasured growthOpen source ↗
136GitHub stars+5 (+3.8 %)
4
ChatCrystal
MCP
ActiveLast commit 1 day ago · 2026-09-03
Local-first AI PKM for coding conversations: import Claude Code/Cursor/Codex, distill notes, semantic search, tag graph, MCP memory.
TypeScriptLicense: Apache-2.0
- agent-skills
- ai-memory
- ai-tools
- claude-code
- codex
githubcreated 5 months agomeasured growthOpen source ↗
58GitHub stars+3 (+5.5 %)
5
ghost
MCP
ActiveLast commit 1 day ago · 2026-09-03
The Private Agent OS — search files, run AI agents, connect to 10,000+ tools via the complete protocol stack (MCP, AG-UI, A2UI, A2A). Zero cloud. Zero telemetry. On-device inference.
Rust
- a2a
- a2ui
- ag-ui
- agent-orchestration
- agent-os
githubcreated 6 months agomeasured growthOpen source ↗
31GitHub stars+2 (+6.9 %)
6
LLMVault
Other
ActiveLast commit 25 days ago · 2026-08-10
An intentionally vulnerable OWASP LLM Top 10 training platform for AI Security, Prompt Injection, RAG Security, Agent Security, and GenAI penetration testing.
PythonLicense: MIT
- agent-security
- ai-security
- ai-security-tool
- artificial-intelligence
- ctf
githubcreated 51 days agomeasured growthOpen source ↗
311GitHub stars+6 (+2.0 %)
7
atmosphere
Agent
ActiveLast commit 1 day ago · 2026-09-03
Portable AI agent runtime for the JVM. One @Agent class runs on Spring AI, LangChain4j, Anthropic, or 9 more behind one SPI. Token streaming, tool calls, human approvals, and governance over WebSocket, SSE, gRPC, or WebTransport/HTTP3.…
JavaLicense: Apache-2.0
- a2a
- acp
- agentic-ai
- ai-agents
- anthropic
githubcreated 16 years agomeasured growthOpen source ↗
3 808GitHub stars+12 (+0.32 %)
8
deja-vu
MCP
ActiveLast commit 4 days ago · 2026-08-31
Search your past AI coding sessions — Claude Code, Codex, Cursor and 17 more. Indexes the session history they already wrote to disk, including months from before you installed it, and recalls it in any of them. No LLM, no embeddings, one…
GoLicense: MIT
- agent-memory
- ai-memory
- claude-code
- claude-code-hooks
- claude-code-plugins
githubcreated 52 days agomeasured growthOpen source ↗
742GitHub stars+7 (+0.95 %)
9
Master-skill
Skill
ActiveLast commit 1 day ago · 2026-09-03
FoJin-powered Buddhist AI persona framework — source-grounded, boundary-aware, fidelity-tested, runtime-ready.
PythonLicense: MIT
- agent-skills
- ai-persona
- bdrc
- buddhism
- chinese-buddhism
githubcreated 5 months agomeasured growthOpen source ↗
Install git clone https://github.com/xr843/Master-skill ~/.claude/skills/Master-skill
382GitHub stars+5 (+1.3 %)
10
mcp-local-rag
MCP
ActiveLast commit 5 days ago · 2026-08-29
Local-first RAG server for developers. Semantic + keyword search for code and technical docs. Works with MCP or CLI. Fully private, zero setup.
TypeScriptLicense: MIT
- agent-skills
- cli-tool
- developer-tools
- hybrid-search
- local-first
githubcreated 10 months agomeasured growthOpen source ↗
381GitHub stars+5 (+1.3 %)
11
Daft
Other
ActiveLast commit today · 2026-09-03
High-performance data engine for AI and multimodal workloads. Process images, audio, video, and structured data at any scale
RustLicense: Apache-2.0
- ai-engineering
- ai-pipeline
- arrow
- artificial-intelligence
- big-data
githubcreated 4 years agomeasured growthOpen source ↗
5 741GitHub stars+10 (+0.17 %)
12
deepdive
Skill
ActiveLast commit 3 days ago · 2026-09-01
Deepdive skill for Claude Code — 12-phase research pipeline: plan-review gate, parallel sub-agent search, claims-ledger triangulation with dissent protection, relevance × authority evidence filter, multi-angle red team, four-layer citation…
PythonLicense: MIT
- agent-skills
- agentic-workflow
- ai-research-assistant
- anthropic
- citation-verification
githubcreated 3 months agomeasured growthOpen source ↗
Install git clone https://github.com/Socialpranker/deepdive ~/.claude/skills/deepdive
393GitHub stars+5 (+1.3 %)
13
skills
Skill
ActiveLast commit 1 day ago · 2026-09-02
Agent skills for Qdrant vector search: scaling, performance optimization, search quality, monitoring, deployment, model migration, version upgrades, and SDK usage across Python, TypeScript, Rust, Go, .NET, Java
PythonLicense: Apache-2.0
- agent-skills
- ai-agents
- claude-code
- codex
- cursor
githubcreated 7 months agomeasured growthOpen source ↗
Install git clone https://github.com/qdrant/skills ~/.claude/skills/skills
230GitHub stars+4 (+1.8 %)
14
databend
Other
ActiveLast commit today · 2026-09-04
Data Agent Ready Warehouse : One for Analytics, Search, AI, Python Sandbox. — rebuilt from scratch. Unified architecture on your S3.
Rust
- ai
- bigdata
- cloud-native
- database
- elasticsearch
githubcreated 5 years agomeasured growthOpen source ↗
9 434GitHub stars+10 (+0.11 %)
15
ratel
MCP
ActiveLast commit 1 day ago · 2026-09-03
Context engineering for AI agents. ~80% fewer tokens. Fix tool overload. Skills and memory with in-process BM25 and semantic retrieval. Progressive Disclosure. No vector DB.
TypeScriptLicense: MIT
- accuracy
- agents
- claude-skills
- context
- harness
githubcreated 9 months agomeasured growthOpen source ↗
434GitHub stars+5 (+1.2 %)
16
claude-mem-lite
MCP
ActiveLast commit today · 2026-09-03
Persistent 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…
JavaScriptLicense: MIT
- agent-memory
- ai-coding-assistant
- ai-memory
- anthropic
- claude
githubcreated 6 months agomeasured growthOpen source ↗
56GitHub stars+2 (+3.7 %)
17
tidb
Agent
ActiveLast commit today · 2026-09-04
TiDB is built for agentic workloads that grow unpredictably, with ACID guarantees and native support for transactions, analytics, and vector search. No data silos. No noisy neighbors. No infrastructure ceiling.
GoLicense: Apache-2.0
- agent
- agent-context
- agent-memory
- agentic
- ai
githubcreated 11 years agomeasured growthOpen source ↗
40 487GitHub stars+9 (+0.02 %)
18
code-graph-mcp
MCP
ActiveLast commit today · 2026-09-03
AST knowledge graph MCP server for Claude Code — semantic search, call graph traversal, HTTP route tracing, impact analysis. Auto-indexes 10 languages via Tree-sitter.
RustLicense: MIT
- ast
- call-graph
- claude-code
- claude-code-plugin
- code-navigation
githubcreated 5 months agomeasured growthOpen source ↗
72GitHub stars+2 (+2.9 %)
19
e-commerce-agents
Agent
ActiveLast commit 1 day ago · 2026-09-03
6 specialized AI agents collaborating via A2A protocol to power e-commerce — product discovery, orders, pricing, reviews, inventory & support. Dual-stack (Python + .NET/C#) with generative UI. Built with Microsoft Agent Framework, FastAPI,…
PythonLicense: MIT
- a2a-protocol
- ai-agents
- aspire-dashboard
- azure-openai
- csharp
githubcreated 5 months agomeasured growthOpen source ↗
22GitHub stars+1 (+4.8 %)
20
hivemind
Skill
ActiveLast commit today · 2026-09-03
Hivemind turns your traces into reusable skills across agents
TypeScriptLicense: Apache-2.0
- ai
- ai-agents
- ai-memory
- anthropic
- artificial-intelligence
githubcreated 5 months agomeasured growthOpen source ↗
Install /plugin marketplace add activeloopai/hivemind
1 594GitHub stars+6 (+0.38 %)
21
orchestkit
Skill
ActiveLast commit today · 2026-09-03
The Complete AI Development Toolkit for Claude Code. 106 skills, 36 agents, 171 hooks. Install `ork` for stable (v9.x), or `ork-alpha` for the v10 line, which ships daily.
TypeScriptLicense: MIT
- agent-orchestration
- agents
- ai-agents
- ai-development
- anthropic
githubcreated 8 months agomeasured growthOpen source ↗
Install /plugin marketplace add yonatangross/orchestkit
227GitHub stars+3 (+1.3 %)
22
trace-mcp
MCP
ActiveLast commit today · 2026-09-04
MCP server for Claude Code and Codex. One tool call replaces ~42 minutes of agent exploration
TypeScriptLicense: MIT
- ai-agents
- claude
- claude-ai
- claude-code
- claude-code-plugin
githubcreated 5 months agomeasured growthOpen source ↗
103GitHub stars+2 (+2.0 %)
23
nuwax
Other
ActiveLast commit 1 day ago · 2026-09-03
Nuwax Agent OS - An enterprise-grade AI Agent Development and Operation Platform - Providing a complete solution for agent creation and distribution, knowledge base management, model proxy, memory system, and plugin ecosystem.
TypeScriptLicense: Apache-2.0
- a2a
- agent
- agent-os
- agent-sandbox
- agentic
githubcreated 14 months agomeasured growthOpen source ↗
878GitHub stars+4 (+0.46 %)
24
llm
Agent
ActiveLast commit 1 day ago · 2026-09-03
Ruby's capable AI runtime
RubyLicense: MIT
- a2a
- a2a-client
- agent
- agent2agent
- agents
githubcreated 23 months agomeasured growthOpen source ↗
139GitHub stars+2 (+1.5 %)

Learning resources

Ranked by measured growth, normalized across sources. These resources remain available separately and do not take part in the main tool ranking.

1
agent-systems-handbook
Agent
ActiveLast commit 1 day ago · 2026-09-03Open source ↗
A practical AI agents handbook covering agent systems, agentic workflows, LangGraph, MCP/A2A, context engineering, agent memory, evaluation, observability, and multi-agent architecture. Current trend focus: Gemini Interactions API and…
MDX
- a2a
- agent-framework
- agent-memory
- agentic-ai
- agentic-workflow
githubactive 1 day agocreated 4 months agoResourcemeasured growth
316GitHub stars+3 (+0.96 %)

RAG and search: tools for developers

Use case

Activity

Sort by

Tool ranking

MindMemOS

core-memory-kit

context-engineering

ChatCrystal

ghost

LLMVault

atmosphere

deja-vu

Master-skill

mcp-local-rag

Daft

deepdive

skills

databend

ratel

claude-mem-lite

tidb

code-graph-mcp

e-commerce-agents

hivemind

orchestkit

trace-mcp

nuwax

llm

Learning resources

agent-systems-handbook