# Knowledge and memory MCP servers online

Check the source documentation for each connection.

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

## MCP servers

1. [Data Olympus](https://mcpdirectory.fyi/ro/global/online/data-olympus.md), Knowledge and memory, Online: Governance-grade knowledge-base format (OKF-compatible) plus CLI and single-writer MCP server
2. [Memory Vault](https://mcpdirectory.fyi/ro/global/online/memory-vault.md), Knowledge and memory, Online: Local-first AI memory layer with hybrid search. Postgres + pgvector. Self-hosted, MIT.

## Other categories in Online

- [Developer tools](https://mcpdirectory.fyi/ro/global/online/category/developer-tools.md): 3 MCP servers
- [Communication](https://mcpdirectory.fyi/ro/global/online/category/communication.md): 1 MCP server
- [Security](https://mcpdirectory.fyi/ro/global/online/category/security.md): 1 MCP server