Memory & Knowledge MCP Servers

AI-powered directory indexing with semantic search for MCP servers

MCP server for persistent, verifiable Working Memory on OriginTrail DKG v10

Local-first documentation and code indexer with HTTP/MCP search, AST, and agent memory.

Turn a directory of documents into a portable, queryable knowledge base

Agentic document retrieval over markdown — BM25 search + tree navigation via MCP. Inspired by PageIndex and Pagefind.

Multi-layer agent-memory MCP server (working, episodic, semantic, procedural, affective) for Claude Code and any MCP client.

Domain Memory MCP server (stdio). Local-first MCP server that serves the business-domain knowledge of a project to any MCP-compatible agent.

Persistent project memory for Claude Code sessions

Dropdat MCP server — recall, save, and read AI-chat capsules from any MCP-capable client (Claude Code, Cursor, Cline, Claude Desktop).

Local hybrid structural and semantic graph memory engine.

Persistent memory server backed by DuckDB.

MCP persistent memory service — let AI assistants remember across sessions. Powered by Qdrant vector search + official embeddings (via

EDITION — Japan Knowledge Gateway for AI agents. 20 knowledge domains, 7 Skills Packs, 43 MCP tools, Progressive Discovery support

ekkOS Memory MCP Server - stdio bridge to cloud memory substrate

🧠 Elasticsearch-powered MCP server with hierarchical memory categorization, intelligent auto-detection, and batch review capabilities

The open, Git-native memory protocol for MCP agents

MCP server for Elephantasm Long-Term Agentic Memory — plug-and-play memory for any AI agent

Local-first, MCP-native unified memory vault — your AI memory as files you own, shared across every model.

Elimination-ledger MCP server — remembers what agents ruled out, not just what's true

MCP server for OpenClaw — expose smart home, memory, cron, and more to Claude Desktop, Cursor, Windsurf, and any MCP client

Experiential Memory Bridge for AI Relationships — an MCP server that preserves the texture of human-AI conversation across sessions