Open-source NLP / RAG framework
deepset's Python framework for production RAG and NLP pipelines — retrieval, generation, evaluation and agents — under a permissive licence.
| Resource | Pricing | Type | Licence | Platforms |
|---|---|---|---|---|
| Haystack | Open source | Library | Apache-2.0 | web |
| Deer Flow | Open source | Library | MIT | web |
| Nanobot | Open source | Library | MIT | web · self-hosted |
| LangChain | Free | Library | MIT | web |
| LangGraph | Free | Library | MIT | web |
| Claude Mem | Free | Library | Apache-2.0 | web |
| Auto Claude Code Research In Sleep | Open source | Library | MIT | web |
Open-source long-horizon SuperAgent harness that researches, codes, and creates.
Lightweight open-source AI agent for your tools, chats, and workflows.
Composable building blocks for LLM apps
Stateful agent graphs on LangChain
Open-source AI memory for Claude Code, linkable to any MCP client.
ARIS ⚔️ (Auto-Research-In-Sleep) — Lightweight Markdown-only skills for autonomous ML research: cross-model review loops, idea discovery, and experiment automation. No framework, no lock-in — works...
