419 knowledge & memory MCP servers, most popular first. Every listing shows its security level and install command.
| Name | Popularity | Security |
|---|---|---|
| story-cli Git-native Markdown content CLI: search, read, write and govern story, paper and note repos, generate READMEs, | – | Low risk |
| agentic-recall Long-term memory over a folder of Markdown files: local hybrid retrieval (BM25F, dense vectors, phrase proximi | – | Low risk |
| mnemos Persistent memory with swappable Postgres/pgvector, Qdrant or Neo4j backends, adaptive retrieval weighting, du | – | Low risk |
| brainy Self-hosted shared brain for multiple agents: Git-versioned Markdown knowledge plus a task queue with atomic c | – | Low risk |
| telys-sdk Official Telys MCP server — private, on-device memory & retrieval for AI assistants: 19 tools covering memory | – | Low risk |
| honest-stat-gov-mcp Polish Central Statistical Office (GUS) Local Data Bank (BDL): browse subjects, search variables and territori | – | Low risk |
| hlido-mcp Hlido trust scores, claim audits and comparisons for reviewed AI agents: tier verdicts, per-claim pass/fail au | – | Low risk |
| realrun-mcp Read-only lookups of independent RealRun test results for AI models on everyday tasks (inbox triage, meeting s | – | Low risk |
| mcp-server Cluefinch MCP provides Deep Research infrastructure for AI agents: web search, incremental page reading, sourc | – | Low risk |
| uap-pulse Read-only search of declassified U.S. federal UAP/UFO records, with hotspots, timelines, a live map dataset an | – | Low risk |
| getabrain-mcp-server Ask paid human workers questions via GetABrain and get schema-validated JSON answers: yes/no, ratings, ranking | – | Low risk |
| agentfem-mcp Create, validate, run, inspect and verify AgentFEM finite-element simulations. | – | Low risk |
| cite-caddy Read and write a Zotero library: items, collections, tags, attachments, notes and bibliography export, with mu | – | Review before installing |
| andre-mcp French election results since 1999 at polling-station level, with INSEE data, elected officials and boundaries | – | Low risk |
| briefing-mcp Hourly LLM-ranked news briefings (AI, markets, sports, world) as structured JSON and e-ink pages, plus provena | – | Low risk |
| fds-mcp Freedom-of-information requests in Germany via FragDenStaat: find the responsible authority, check the law and | – | Low risk |
| tube-bridge Self-hosted YouTube research: video and channel search, transcripts, comments, playlists, timestamped frames a | – | Low risk |
| mcp-libraryofcongress Full-text search of the Library of Congress's digitised American newspapers, plus catalogue search by media ty | – | Low risk |
| mcp-databnf Search the open catalogue of the Bibliothèque nationale de France for authors, their works and the editions he | – | Review before installing |