654 Memory & Knowledge MCP Servers & Clients

yandex-wiki-search-mcp

dlbolshov

MCP server for Yandex Wiki with full-text search. Read and write pages, comments, attachments, and dynamic tables (grids) through 27 tools with typed input/output schemas; optional server-side read-only mode for agents.

RAG Application

hulk-pham

A demo of Retrieval-Augmented Generation (RAG) application with MCP server integration.

Q-CLI MCP Memory Server

gengisb

an MCP server implementing a memory feature for Q CLI

Project Memory

kaaustubh

Persistent memory for AI coding agents (Claude Code, Cursor) — past bugs & fixes, decisions, and your corrections, as plain files in your repo.

Cardano MCP Server

Jimmyh-world

A specialized RAG gateway providing language models with Cardano blockchain knowledge. Enables AI assistants to access documentation, validate smart contracts, understand UTXO patterns, and discover development resources. Built on the MCP TypeScript SDK. Open-source.

Knowledge Tools Mcp

lhondikoi

An MCP server for interacting with various research & notetaking applications.

SMMS_Semantic-Map-MCP-Server

yongzhouwangbowen

The repository SMMS creates an MCP server for instance-level semantic maps and provides a series of functional modules for 3D instance objects in semantic maps.

AWS Amplify Documentation MCP Server

ykethan

Model Context Protocol (MCP) server for AWS Amplify documentation

Booboo

jessedu29260-netizen

Booboo — the unified operational brain. Wiring + knowledge + memory + agents + crons fused into one rooted, queryable 3D graph. REST + MCP + million-node 60fps viewer.

A local knowledge management MCP server built with FastMCP framework.

GST Cranes Public Discovery MCP is a read-only public discovery server for GST Cranes, a worldwide B2B marketplace for used mobile and crawler cranes. It exposes public documentation, OpenAPI, marketplace, wanted-ad, and Crane Wiki / Atlas discovery resources for AI agents.

MCP Memory Gateway is a pre-action gate engine for AI coding agents. Unlike memory servers that store and retrieve context (Mem0, Zep), this server enforces behavior change: repeated failures are auto-promoted into prevention rules, and PreToolUse hooks physically block tool call

Local-first agent memory MCP — Claude Code, Cursor, OpenAI Codex, and Gemini CLI share one SQLite brain. 6-layer structured memory (goal/context/emotion/implementation/caveat/learning), drift detection with pre-action re-injection guard, and an AST-aware diff cache saving 50-99%

Confluence Wiki MCP Server Extension

MCP-Mirror

Mirror of

Aleph-10: Vector Memory MCP Server

bjkemp

Vector Memory MCP Server - An MCP server with vector-based memory storage capabilities

Search podcasts, retrieve transcripts and summaries, ask questions, translate episodes, create clips and export notes. Requires a Pro or Enterprise account.

ai-memory — Persistent Memory for Any AI

alphaonedev

Persistent memory for any AI assistant. Zero token cost until recall. Stores memories locally in SQLite, ranks by 6-factor scoring, returns results in TOON compact format (79% smaller than JSON). 17 MCP tools, 20 HTTP endpoints, 25 CLI commands. 4 tiers from keyword to autonomous

AI long-term memory MCP server with importance scoring and confidence calibration. Enables AI agents to store, search, and retrieve long-term memories with semantic similarity and importance-weighted recall.

LeetCode MCP (Model Context Protocol)

Kishan-N

MCP Server to generate Leetcode Notes

MCP Server Obsidian Omnisearch

MCP-Mirror

Mirror of

Cognitive memory system for AI agents with 129 MCP tools. Persistent hierarchical memory, emotional recall, knowledge graphs, spreading activation, hybrid retrieval (BM25+RRF), metacognition, goal tracking, spaced repetition, dream consolidation, and more.

Official Substack / Medium MCP Server

jean-technologies

The tool connects to your Substack/Medium blogs via their RSS feeds, fetches your posts, and permanently caches them locally. It also generates embeddings for each post, enabling semantic search to find the most relevant essays based on your queries.

MCP-Notion

Verandert-Gewoon

MCP server for Notion

mcp-obsidian

OleksandrKucherenko

MCP Server connected to Obsidian Vault with Local REST API. (re-write it completely with BUN to make it faster and more lightweight)

docs

chiisen

使用 Hexo 架設簡單的分享技術文件並發佈到"cloudflare"，包含介紹文章: "全面瞭解 n8n v1.88.0 的重磅更新 —— MCP Server"、"教會你用 Google AI Studio 提早結束工作回家"、"C# 設計模式學習筆記與程式碼範例"、"JavaScript 設計模式學習筆記與程式碼範例"、"Functional Design Pattern 是一個結合函數式程式設計和設計模式的概念"

Simple Notion MCP Server

larryhudson

Notion MCP server that uses Markdown for better LLM support

Lipsky Memory MCP

Lipdog

Multi-project memory MCP - A Model Context Protocol server for managing project memory and context

Burn-after-read encrypted notes for AI agents. Share secrets with users without them appearing in chat history — create a one-time URL, send it, they read it once and it's gone. AES-256-GCM E2E encrypted, decryption key never sent to any server.

Wikijs Mcp Server

heAdz0r

Model Context Protocol (MCP) server for Wiki.js integration via GraphQL API.

notion_mcp

DaleCameron

MCP Server for Notion

Knowledge Graph & Causal Discovery

apifyforge

Knowledge graph causal discovery over multi-domain research data, delivered through a single Model Context Protocol interface.

Claude Desktop Notion MCP Server

tkc

Notion MCP Server

Obsidian MCP Python

hellozhangran

obsidian-mcp-python, a very simple MCP Server demo that can help you to operate something about your obsidian md file

The GitBook MCP server enables programmatic access to GitBook Organizations, Spaces, Collections, and Content through a standardized MCP interface. It provides 12 tools for content operations and 6 AI-powered prompts for documentation workflows.

Markdown-First MCP Server for Notion - Composite Actions, Auto-Pagination, Bulk Operations optimized for AI Agents

Frinus

frinus-ai

MCP server that exposes 70 tools spanning cognitive memory, working memory, sessions, agents, the L0–L3 knowledge hierarchy, orchestration tasks, and training pipelines. The server speaks stdio and is consumed by Claude Desktop, Claude Code, OpenCodex, and any MCP-aware client.

MCP-Mem0: Long-Term Memory for AI Agents

coleam00

MCP server for long term agent memory with Mem0. Also useful as a template to get you started building your own MCP server with Python!

Share one memory store across all your AI coding tools. Memory Arbiter is a lightweight, fully local MCP Server with built-in dual-timeline conflict arbitration. No cloud, no LLM calls — just SQLite.

LawMem gives legal AI agents persistent, searchable memory via MCP. Store case notes, client context, research findings, and matter history — recalled semantically when relevant. Namespace-isolated, audit-logged, GDPR-compliant. Free tier + paid plans.

Apple RAG MCP

BingoWon

Transform your AI agents into Apple development experts! Apple RAG MCP gives you instant access to official Swift docs, design guidelines, and comprehensive Apple platform knowledge through cutting-edge RAG technology. With professional AI reranking and hybrid search across iOS,

A local, fully-offline MCP memory server using SQLite + FTS5 + sqlite-vec with embedding support

MCP Documentation Server

esakrissa

Model Context Protocol documentation server for LangGraph and MCP.

An MCP server that provides tools for retrieving and processing documentation through vector search, both locally or hosted. Enabling AI assistants to augment their responses with relevant documentation context.

IaC Memory MCP Server

AgentWong

This is a personal project to see if Claude 3.5 Sonnet can write a moderately complex MCP Server in Python.

memory-mcp-server

ta-tomschell

A long-term memory storage system for LLMs using the Model Context Protocol (MCP) standard. This system helps LLMs remember the context of work done over the entire history of a project, even across multiple sessions. It uses semantic search with embeddings to provide relevant co

Semantic Scholar MCP Server

MCP-Mirror

Mirror of

Calypso Multimodal RAG

calypso-so

Launch a hosted Gemini File Search true multimodal RAG layer that answers from your PDFs, docs, screenshots, charts, diagrams, help center, FAQs, and images with citations people can verify.

MCP-RAG

HarshDindeAI

The MCP-RAG Server is an implementation of the Model Context Protocol (MCP) designed to enhance AI assistants by providing them with real-time access to relevant documentation through semantic vector search. It enables AI models to retrieve and process documentation, allowing for

Autopoietic Knowledge Synthesis MCP Server

apifyforge

Autopoietic knowledge synthesis gives AI agents access to 18 academic and technical data sources unified by a suite of advanced mathematical frameworks — stochastic block model community detection, Turing instability, Smith normal form Betti numbers, formal concept analysis, Fish