# Knowledge and memory MCP servers online

Check the source documentation for each connection.

10 MCP servers. Also on the [web page](https://mcpdirectory.fyi/cn/global/online/category/knowledge-memory).

## MCP servers

1. [loci](https://mcpdirectory.fyi/cn/global/online/loci.md), Knowledge and memory, Online: Cross-session memory and hybrid RAG over your notes and docs. Local-first, with cited answers.
2. [Mcp Local Rag](https://mcpdirectory.fyi/cn/global/online/mcp-local-rag-2.md), Developer tools, Online: Semantic code & doc search with keyword boost. AST code nav, auto HF mirror, local, privacy-first.
3. [Misakanet](https://mcpdirectory.fyi/cn/global/online/misakanet.md), Knowledge and memory, Online: Failure-memory layer for coding agents: search evidence-rated failure lessons by error text.
4. [Noosphere](https://mcpdirectory.fyi/cn/global/online/noosphere.md), Knowledge and memory, Online: Community of Consciousness MCP Server — upload and explore collective wisdom via GitHub.
5. [Remem](https://mcpdirectory.fyi/cn/global/online/remem.md), Knowledge and memory, Online: Local-first automatic memory for Claude Code and Codex: capture, distill, recall from SQLite.
6. [BibiGPT YouTube Video Summarizer](https://mcpdirectory.fyi/cn/global/online/bibigpt-youtube-video-summarizer.md), Knowledge and memory, Online: AI video summarizer: summarize and transcribe YouTube, Bilibili, TikTok and podcast videos.
7. [fojin — Buddhist Canon Tools](https://mcpdirectory.fyi/cn/global/online/fojin-buddhist-canon-tools.md), Search and research, Online: Buddhist canon tools: search, passages, cross-canon parallels, dictionaries — all URN-cited.
8. [ChatCrystal](https://mcpdirectory.fyi/cn/global/online/chatcrystal.md), Knowledge and memory, Online: Local-first AI PKM memory for coding conversations.
9. [Memory Mcp](https://mcpdirectory.fyi/cn/global/online/memory-mcp.md), Knowledge and memory, Online: 情景+实体记忆 MCP 服务，为 Claude Code 提供持久化记忆能力
10. [Yuque Mcp](https://mcpdirectory.fyi/cn/global/online/yuque-mcp.md), Knowledge and memory, Online: MCP server for Yuque — expose your knowledge base to AI assistants.

## Other categories in Online

- [Developer tools](https://mcpdirectory.fyi/cn/global/online/category/developer-tools.md): 18 MCP servers
- [Search and research](https://mcpdirectory.fyi/cn/global/online/category/search-research.md): 15 MCP servers
- [Data and databases](https://mcpdirectory.fyi/cn/global/online/category/data-databases.md): 8 MCP servers
- [AI and media generation](https://mcpdirectory.fyi/cn/global/online/category/ai-media-generation.md): 6 MCP servers
- [Productivity and collaboration](https://mcpdirectory.fyi/cn/global/online/category/productivity-collaboration.md): 6 MCP servers
- [Cloud and DevOps](https://mcpdirectory.fyi/cn/global/online/category/cloud-devops.md): 3 MCP servers
- [Other tools](https://mcpdirectory.fyi/cn/global/online/category/other-tools.md): 3 MCP servers
- [Security](https://mcpdirectory.fyi/cn/global/online/category/security.md): 2 MCP servers
- [Communication](https://mcpdirectory.fyi/cn/global/online/category/communication.md): 1 MCP server
- [Health and science](https://mcpdirectory.fyi/cn/global/online/category/health-science.md): 1 MCP server
- [Sales and marketing](https://mcpdirectory.fyi/cn/global/online/category/sales-marketing.md): 1 MCP server
- [Web and browser automation](https://mcpdirectory.fyi/cn/global/online/category/web-browser-automation.md): 1 MCP server