271 MCP servers and agent skills in the Knowledge & Memory category, ranked by quality score.
Persistent, compounding memory for AI agents across sessions. Uses the Intelligent Distance Protocol to surface the most contextually relevant past memories. Five tools: `session_start`, `remember`, `recall`, `check`, `session_end`. `npx agent-recall-mcp`
Pre-action gates that prevent AI coding agents from repeating known mistakes. Captures explicit feedback, auto-promotes failures into prevention rules, and enforces them via hooks.
Turns your task manager into agent memory: hybrid (dense + sparse + keyword, RRF) retrieval over TickTick or an Obsidian vault via a six-method adapter contract. MCP server + CLI, no vector DB to build or maintain. `npm i -g @reneza/ats-cli`
XMemo is user-owned memory for AI agents over a hosted Streamable HTTP MCP endpoint. Save, search, recall, and manage scoped memories across Copilot, Claude, ChatGPT, IDEs, and CLIs. `https://xmemo.dev/mcp`
Personal memory for Claude Code in plain Markdown notes you own. Doesn't load context blindly: a router note decides what to load and when, plus an "alma" (soul) layer for what you think and feel, not just tasks. `npx bovedia`
Hosted company-state MCP for operating SMBs (brand, voice, charter, priorities, entitled modules/skills). Anonymous public discovery at `https://connector.rarefied.earth/public/mcp` proves live value in under 10 seconds; tenant feed after trial. Official registry: `io.github.Rarefied-Earth/groundwork`. [Product](https://rarefied.earth/groundwork/)
AI agent memory and knowledge graph, hosted in Germany (GDPR-compliant). Hybrid recall (BM25 + vector + Neo4j graph hops with cross-encoder rerank), typed relations, and bi-temporal store across sessions via MCP. Works with Claude, ChatGPT, and Cursor. `npx -y knowmind mcp`
Decentralized civil registry for AI agents on Sui. Soulbound identities, on-chain memories, reputation, refusal records. Hosted at `agentcivics.ai/mcp` (read-only, no install) or `@agentcivics/mcp-server` on npm (full write surface). Includes a gas-sponsor relay so registration doesn't require a pre-funded wallet.
Shared, versioned memory for your agents across Claude Code, Cursor, Kiro and Grok. One MCP server, sourced answers, full history. Remote Streamable HTTP; anonymous browses a public demo corpus. Tools: `search`, `get_context_pack`, `upsert_document`. `https://basemouse.com/mcp`
Persistent memory for AI agents through a simple key-value HTTP API. No vector database or embeddings required. Store, retrieve, search, and share memory across agents with shared namespaces and TTL support. `npx -y agentram-mcp`
AI coding context for Claude Code, Cursor, and Codex. Path-scoped team memories, rules, and skills from Pathrule Web workspaces via OAuth. `https://mcp.pathrule.io/mcp`
Make any website queryable by AI agents. Index a site then ask questions and get cited answers grounded in its content via RAG. Tools: `list_sites` and `ask_site`. `npx -y @agentreadyweb/mcp`