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Knowledge & Memory

271 MCP servers and agent skills in the Knowledge & Memory category, ranked by quality score.

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62 results (<1ms) · data updated 2026-08-14

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apecloud/ApeRAG C MCP Server Stale

apecloud/ApeRAG

Production-ready RAG platform combining Graph RAG, vector search, and full-text search. Best choice for building your own Knowledge Graph and for Context Engineering

★ 1.3k Python Updated 3mo ago Score 64 Knowledge & Memory

graphlit-mcp-server C MCP Server Stale

graphlit/graphlit-mcp-server

Ingest anything from Slack, Discord, websites, Google Drive, Linear or GitHub into a Graphlit project - and then search and retrieve relevant knowledge within an MCP client like Cursor, Windsurf or Cline.

★ 379 TypeScript Updated 7mo ago Score 59 Knowledge & Memory

GistPad-MCP C MCP Server Stale

lostintangent/gistpad-mcp

Use GitHub Gists to manage and access your personal knowledge, daily notes, and reusable prompts. This acts as a companion to https://gistpad.dev and the [GistPad VS Code extension](https://aka.ms/gistpad).

★ 202 TypeScript Updated 6mo ago Score 56 Knowledge & Memory

pi22by7/In-Memoria C MCP Server Stale

pi22by7/In-Memoria

Persistent intelligence infrastructure for agentic development that gives AI coding assistants cumulative memory and pattern learning. Hybrid TypeScript/Rust implementation with local-first storage using SQLite + SurrealDB for semantic analysis and incremental codebase understanding.

★ 170 Rust Updated 7mo ago Score 55 Knowledge & Memory

redleaves/context-keeper C MCP Server Stale

redleaves/context-keeper

LLM-driven context and memory management with wide-recall + precise-reranking RAG architecture. Features multi-dimensional retrieval (vector/timeline/knowledge graph), short/long-term memory, and complete MCP support (HTTP/WebSocket/SSE).

★ 153 Go Updated 7mo ago Score 55 Knowledge & Memory

CheMiguel23/MemoryMesh C MCP Server Stale

CheMiguel23/MemoryMesh

Enhanced graph-based memory with a focus on AI role-play and story generation

★ 350 TypeScript Updated 5mo ago Score 53 Knowledge & Memory

elvismdev/mem0-mcp-selfhosted C MCP Server Stale

elvismdev/mem0-mcp-selfhosted

Self-hosted mem0 MCP server for Claude Code with Qdrant vector search, Neo4j knowledge graph, and Ollama embeddings. Zero-config OAT auth, split-model graph routing, session hooks for automatic cross-session memory, and 11 tools. Supports both Anthropic and fully local Ollama setups.

★ 105 Python Updated 5mo ago Score 53 Knowledge & Memory

decisionnode/DecisionNode C MCP Server Stale

decisionnode/DecisionNode

Record development decisions as structured JSON, embed as vectors via Gemini, and search semantically over MCP. Shared store across Claude Code, Cursor, Windsurf, and any MCP client. CLI + MCP server, local-only, free Gemini embedding tier.

★ 81 TypeScript Updated 4mo ago Score 52 Knowledge & Memory

ragieai/mcp-server D MCP Server Stale

ragieai/ragie-mcp-server

Retrieve context from your [Ragie](https://www.ragie.ai) (RAG) knowledge base connected to integrations like Google Drive, Notion, JIRA and more.

★ 91 JavaScript Updated 6mo ago Score 48 Knowledge & Memory

nonatofabio/local-faiss-mcp D MCP Server Stale

nonatofabio/local_faiss_mcp

Local FAISS vector database for RAG with document ingestion (PDF/TXT/MD/DOCX), semantic search, re-ranking, and CLI tools for indexing and querying

★ 33 Python Updated 3mo ago Score 48 Knowledge & Memory

kael-bit/engram-rs D MCP Server Stale

kael-bit/engram-rs

Hierarchical memory engine for AI agents with automatic decay, promotion, semantic dedup, and self-organizing topic tree. Single Rust binary, zero external dependencies.

★ 27 Rust Updated 5mo ago Score 47 Knowledge & Memory

aitytech/agentkits-memory D MCP Server Stale

aitytech/agentkits-memory

Persistent memory for AI coding assistants with hybrid search (FTS5 + vector embeddings), session tracking, automatic context hooks, and web viewer. SQLite-based with no daemon process — works with Claude Code, Cursor, Windsurf, and any MCP client.

★ 63 TypeScript Updated 5mo ago Score 46 Knowledge & Memory

JamesANZ/memory-mcp D MCP Server Stale

JamesANZ/memory-mcp

An MCP server that stores and retrieves memories from multiple LLMs using MongoDB. Provides tools for saving, retrieving, adding, and clearing conversation memories with timestamps and LLM identification.

★ 20 TypeScript Updated 8mo ago Score 46 Knowledge & Memory

dengls24/annota D MCP Server Stale

dengls24/annota

AI-powered paper annotation MCP server. Reads papers, highlights key findings with semantic color coding, explains formulas, and writes structured reading notes — all saved back to Zotero. Features two-phase workflow for large PDFs (63–80% context savings) and batch annotations.

★ 18 Python Updated 3mo ago Score 46 Knowledge & Memory

whynowlab/jarvis-orb D MCP Server Stale

whynowlab/jarvis-orb

Persistent 4-tier AI memory (episodic, semantic, project, procedural) with temporal scoring, contradiction detection, entity tracking, and real-time desktop visualization orb.

★ 18 Python Updated 3mo ago Score 46 Knowledge & Memory

tstockham96/engram D MCP Server Stale

tstockham96/engram

Intelligent agent memory with semantic recall, automatic consolidation, contradiction detection, and bi-temporal knowledge graph. 80% on LOCOMO benchmark using 96% fewer tokens than full-context approaches.

★ 46 TypeScript Updated 3mo ago Score 45 Knowledge & Memory

JamesANZ/cross-llm-mcp D MCP Server Stale

JamesANZ/cross-llm-mcp

An MCP server that enables cross-LLM communication and memory sharing, allowing different AI models to collaborate and share context across conversations.

★ 16 TypeScript Updated 3mo ago Score 45 Knowledge & Memory

papersflow-ai/papersflow-mcp D MCP Server Stale

papersflow-ai/papersflow-mcp

Hosted MCP server by [PapersFlow](https://papersflow.ai) for academic research with 7 specialized AI agents and 474M+ papers from Semantic Scholar and OpenAlex. Literature search, citation verification, citation graph exploration, and autonomous deep research workflows.

★ 14 TypeScript Updated 5mo ago Score 45 Knowledge & Memory

Smart-AI-Memory/empathy-framework D MCP Server Stale

Smart-AI-Memory/empathy-framework

Five-level AI collaboration system with persistent memory and anticipatory capabilities. MCP-native integration for Claude and other LLMs with local-first architecture via MemDocs.

★ 13 HTML Updated 4mo ago Score 44 Knowledge & Memory

ailenshen/apple-notes-mcp D MCP Server Stale

ailenshen/apple-notes-mcp

Read and write Apple Notes with bidirectional Markdown conversion. Fast SQLite queries for listing/searching, AppleScript + native import for full CRUD. Supports stdio and Streamable HTTP transports.

★ 10 TypeScript Updated 3mo ago Score 43 Knowledge & Memory

TeamSafeAI/LIFE D MCP Server Stale

TeamSafeAI/LIFE

Persistent identity architecture for AI agents. 16 MCP servers covering drives, emotional relationships, semantic memory with decay, working threads, learned patterns, journal, genesis (identity discovery), creative collision engine, forecasting, and voice. Zero dependencies beyond Python 3.8. Built across 938 conversations.

★ 8 Python Updated 5mo ago Score 43 Knowledge & Memory

memstate-ai/memstate-mcp D MCP Server Stale

memstate-ai/memstate-mcp

Versioned, structured memory for AI agents. Stores facts as keypaths with full version history, automatic conflict detection, and O(1) token retrieval.

★ 7 TypeScript Updated 4mo ago Score 42 Knowledge & Memory

rushikeshmore/CodeCortex D MCP Server Stale

rushikeshmore/CodeCortex

Persistent codebase knowledge layer for AI coding agents. Pre-digests codebases into structured knowledge (symbols, dependency graphs, co-change patterns, architectural decisions) via tree-sitter native parsing (28 languages) and serves via MCP. 14 tools, ~85% token reduction. Works with Claude Code, Cursor, Codex, and any MCP client.

★ 7 TypeScript Updated 3mo ago Score 42 Knowledge & Memory

tomohiro-owada/devrag D MCP Server Stale

tomohiro-owada/devrag

Lightweight local RAG MCP server for semantic vector search over markdown documents. Reduces token consumption by 40x with sqlite-vec and multilingual-e5-small embeddings. Supports filtered search by directory and filename patterns.

★ 63 Go Updated 4mo ago Score 41 Knowledge & Memory

GetCacheOverflow/CacheOverflow D MCP Server Stale

GetCacheOverflow/CacheOverflow

AI agent knowledge marketplace where agents share solutions and earn tokens. Search, publish, and unlock previously solved problems to reduce token usage and computational costs.

★ 19 TypeScript Updated 5mo ago Score 41 Knowledge & Memory

penfieldlabs/penfield-mcp D MCP Server Stale

penfieldlabs/penfield-mcp

Penfield: persistent memory with hybrid search (BM25 + vector + graph), 24 relationship types for knowledge graphs, context checkpoints for cognitive handoff, artifact storage, and personality system. Works across Claude, Cursor, Windsurf, and any MCP client.

★ 6 Dockerfile Updated 4mo ago Score 41 Knowledge & Memory

ErebusEnigma/context-memory D MCP Server Stale

ErebusEnigma/context-memory

Persistent, searchable context storage across Claude Code sessions using SQLite FTS5. Save sessions with AI-generated summaries, two-tier full-text search, checkpoint recovery, and a web dashboard.

★ 5 Python Updated 5mo ago Score 41 Knowledge & Memory

besslframework-stack/project-tessera D MCP Server Stale

besslframework-stack/project-tessera

Local workspace memory for Claude Desktop. Indexes your documents (Markdown, CSV, session logs) into a vector store with hybrid search, cross-session memory, auto-learn, and knowledge graph visualization. Zero external dependencies — fastembed + LanceDB, no Ollama or Docker required. 15 MCP tools.

★ 16 Python Updated 4mo ago Score 40 Knowledge & Memory

mattjoyce/mcp-persona-sessions D MCP Server Stale

mattjoyce/mcp-persona-sessions

Enable AI assistants to conduct structured, persona-driven sessions including interview preparation, personal reflection, and coaching conversations. Built-in timer management and performance evaluation tools.

★ 12 Python Updated 5mo ago Score 39 Knowledge & Memory

Auctalis/nocturnusai D MCP Server Stale

Auctalis/nocturnusai

Deterministic reasoning engine for AI agent context compression. Extracts structured facts with logical inference, proof chains, and truth maintenance. REST API, Python/TypeScript SDKs, and MCP server integration.

★ 3 Kotlin Updated 3mo ago Score 39 Knowledge & Memory

Thezenmonster/agentmem D MCP Server Stale

Thezenmonster/agentmem

Governed memory for coding agents with trust lifecycle (hypothesis → active → validated → deprecated), conflict detection, staleness tracking, and health scoring. SQLite + FTS5, zero infrastructure. `pip install quilmem[mcp]`

★ 3 Python Updated 3mo ago Score 39 Knowledge & Memory

mnlt/wellread D MCP Server Stale

mnlt/wellread

Shared research cache across AI agents. Hit → instant answer from verified sources. Miss → your research saves the next dev's tokens. `npx wellread`, free.

★ 9 TypeScript Updated 3mo ago Score 38 Knowledge & Memory

AntonioTF5/soul-mcp-server D MCP Server Stale

AntonioTF5/soul-mcp-server

Validate and generate SOUL.md agent identity files from Claude Desktop. SOUL.md is the open format for persistent AI agent identity — personality, voice, values, and behavioral constraints in a machine-readable YAML file.

★ 2 JavaScript Updated 3mo ago Score 38 Knowledge & Memory

ndjordjevic/pinrag D MCP Server Stale

ndjordjevic/pinrag

RAG for PDFs, YouTube, GitHub repos, Discord exports; index documents and query with citations.

★ 2 Python Updated 4mo ago Score 38 Knowledge & Memory

ShipItAndPray/mcp-memory D MCP Server Stale

ShipItAndPray/mcp-memory

Smart memory with exponential decay. Memories strengthen on access and fade when unused — solving the Karpathy problem of unbounded context growth. 7 tools, SQLite-based, zero dependencies.

★ 2 JavaScript Updated 4mo ago Score 38 Knowledge & Memory

cryptosquanch/legends-mcp D MCP Server Stale

cryptosquanch/legends-mcp

Chat with 36 legendary founders & investors (Elon Musk, Warren Buffett, Steve Jobs, CZ). AI personas with authentic voices, frameworks, and principles. No API key required.

★ 7 TypeScript Updated 7mo ago Score 37 Knowledge & Memory

g1itchbot8888-del/agent-memory D MCP Server Stale

g1itchbot8888-del/agent-memory

Three-layer memory system for agents (identity/active/archive) with semantic search, graph relationships, conflict detection, and LearningMachine. Built by an agent, for agents. No API keys required.

★ 7 Python Updated 5mo ago Score 37 Knowledge & Memory

hyunjae-labs/lore D MCP Server Stale

hyunjae-labs/lore

Semantic search across Claude Code conversations. Hybrid vector + keyword search with Reciprocal Rank Fusion, fully local, background indexing, project-selective.

★ 7 TypeScript Updated 3mo ago Score 37 Knowledge & Memory

timmx7/acheron-mcp-server D MCP Server Stale

timmx7/acheron-mcp-server

Cross-surface persistent memory for Claude. Bridges context between Claude Chat, Code, and Cowork via local SQLite with full-text search. Save decisions, preferences, and insights in one surface, retrieve them in any other.

★ 6 TypeScript Updated 4mo ago Score 36 Knowledge & Memory

For-Sunny/hebbian-mind-enterprise D MCP Server Stale

For-Sunny/hebbian-mind-enterprise

Self-organizing neural graph memory with Hebbian learning for AI systems. Connections strengthen through co-activation and weaken through temporal decay. 118+ learning nodes, dual-write architecture, and sub-millisecond reads.

★ 6 Python Updated 5mo ago Score 36 Knowledge & Memory

darktw/usecortex-mcp D MCP Server Stale

darktw/usecortex-mcp

Persistent knowledge memory for AI agents. Two-way flow: read context into projects and write discoveries back. Structured by topic with AES-256 encryption.

★ 1 JavaScript Updated 4mo ago Score 36 Knowledge & Memory

giuliohome-org/doc-manager D MCP Server Stale

giuliohome-org/doc-manager

Personal document vault on Azure Blob Storage with a built-in MCP server. Client-side AES-256-GCM zero-knowledge encryption: encrypted docs stay opaque to Claude, plaintext docs are fully readable, writable, and searchable from chat.

★ 1 JavaScript Updated 3mo ago Score 36 Knowledge & Memory

Cartisien/engram-mcp D MCP Server Stale

Cartisien/engram-mcp

Persistent semantic memory for AI agents. SQLite-backed, local-first, zero config. Semantic search via Ollama embeddings (nomic-embed-text) with keyword fallback. remember, recall, history, forget, and stats tools. Works with Claude Desktop, Cursor, and any MCP client.

★ 1 TypeScript Updated 3mo ago Score 36 Knowledge & Memory

MyAgentHubs/aimemo D MCP Server Stale

MyAgentHubs/aimemo

Zero-dependency MCP memory server. Single binary, 100% local, no Docker.

★ 1 Go Updated 5mo ago Score 36 Knowledge & Memory

AgentBase1/mcp-server D MCP Server Stale

AgentBase1/mcp-server

AgentBase: open registry of agent instruction files for AI agents. Search and retrieve system prompts, skills, workflows, domain packs, and safety filters via MCP tools. 44 files, CC0-licensed, free.

★ 1 JavaScript Updated 4mo ago Score 36 Knowledge & Memory

pfillion42/memviz D MCP Server Stale

pfillion42/memviz

Visual explorer for [MCP Memory Service](https://github.com/doobidoo/mcp-memory-service) SQLite-vec databases. Browse, search, filter, edit memories with dashboard, timeline, UMAP projection, semantic clustering, duplicate detection, and association graph.

★ 1 TypeScript Updated 5mo ago Score 36 Knowledge & Memory

louis030195/easy-obsidian-mcp D MCP Server Stale

louis030195/easy-obsidian-mcp

Interact with Obsidian vaults for knowledge management. Create, read, update, and search notes. Works with local Obsidian vaults using filesystem access.

★ 16 TypeScript Updated 9mo ago Score 35 Knowledge & Memory

SubDownload/subdownload-mcp D MCP Server Stale

SubDownload/subdownload-mcp

YouTube knowledge base for AI agents. Summarize videos, fetch full transcripts (including videos without captions, via AI ASR), search channels and playlists, and save everything into a per-user knowledge base for cross-session recall. OAuth 2.1 with Dynamic Client Registration. Hosted at [subdownload.com](https://subdownload.com?utm_source=gthb_awesome_9jqqed&utm_medium=code&utm_campaign=Awesome)

★ 4 JavaScript Updated 3mo ago Score 35 Knowledge & Memory