# Knowledge and memory MCP servers online

Check the source documentation for each connection.

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

## MCP servers

1. [Clude](https://mcpdirectory.fyi/sg/global/online/clude.md), Knowledge and memory, Online: Portable agent memory anchored on Solana. Local SQLite + vector recall, open export.
2. [Linksee Memory](https://mcpdirectory.fyi/sg/global/online/linksee-memory.md), Knowledge and memory, Online: Hand a project over with the reasons attached. Local-first cross-agent memory MCP + drift detection.
3. [Pdf Mcp](https://mcpdirectory.fyi/sg/global/online/pdf-mcp.md), Knowledge and memory, Online: Agentic RAG over one PDF or a whole folder: hybrid search, selective page reads, tables, OCR.
4. [Myco: Agent-First Cognitive Substrate](https://mcpdirectory.fyi/sg/global/online/myco-agent-first-cognitive-substrate.md), Knowledge and memory, Online: Agent-first cognitive substrate: 20 verbs + 50 lint dims over a self-validating graph.

## Other categories in Online

- [Developer tools](https://mcpdirectory.fyi/sg/global/online/category/developer-tools.md): 9 MCP servers
- [Search and research](https://mcpdirectory.fyi/sg/global/online/category/search-research.md): 7 MCP servers
- [Finance and crypto](https://mcpdirectory.fyi/sg/global/online/category/finance-crypto.md): 4 MCP servers
- [Web and browser automation](https://mcpdirectory.fyi/sg/global/online/category/web-browser-automation.md): 4 MCP servers
- [Cloud and DevOps](https://mcpdirectory.fyi/sg/global/online/category/cloud-devops.md): 3 MCP servers
- [Productivity and collaboration](https://mcpdirectory.fyi/sg/global/online/category/productivity-collaboration.md): 2 MCP servers
- [Communication](https://mcpdirectory.fyi/sg/global/online/category/communication.md): 1 MCP server
- [Health and science](https://mcpdirectory.fyi/sg/global/online/category/health-science.md): 1 MCP server
- [Sales and marketing](https://mcpdirectory.fyi/sg/global/online/category/sales-marketing.md): 1 MCP server
- [Security](https://mcpdirectory.fyi/sg/global/online/category/security.md): 1 MCP server