Knowledge & Memory MCP Servers

Knowledge & Memory category — 389 MCP servers, ranked by GitHub stars.

R

RoboSystems

Knowledge & Memory

Accounting knowledge graphs: SEC XBRL filings, QuickBooks ledgers, reports and forecasts over MCP.

★ 26 MCP Server Requires auth
R

RAGStack-Lambda

Knowledge & Memory

Search, chat, upload, and scrape a serverless RAGStack knowledge base on AWS.

★ 25 MCP Server
D

data-olympus

Knowledge & Memory

Governance-grade project knowledge MCP server for coding agents. Git-native Markdown knowledge base with proposed vs accepted guidance,…

★ 25 MCP Server
M

Mnemoverse Memory

Knowledge & Memory

Hosted AI agent memory that learns from outcomes, with shared rooms, in Claude, Cursor and ChatGPT.

★ 25 MCP Server Requires auth
M

memory-mcp-1file

Knowledge & Memory

A self-contained Memory server with single-binary architecture (embedded DB & models, no dependencies). Provides persistent semantic and…

★ 24 MCP Server
M

membase-mcp

Knowledge & Memory

Save and query your agent memory in distributed way by Membase

★ 24 MCP Server
Y

yantrikdb-mcp

Knowledge & Memory

Cognitive memory for AI agents — semantic recall, knowledge graph, and contradiction detection

★ 24 MCP Server
Z

ZenBrain Memory

Knowledge & Memory

Seven-layer agent memory: episodic, semantic, procedural and core. Local SQLite, no account.

★ 24 MCP Server
F

Fidelis Memory

Knowledge & Memory

Recall locally stored agent memories through an MCP-compatible host.

★ 23 MCP Server
S

SAME - Stateless Agent Memory Engine

Knowledge & Memory

Persistent memory for AI coding agents. Local-first SQLite + vector search. 17 MCP tools.

★ 23 MCP Server
C

celiums-memory

Knowledge & Memory

Cognitive memory engine with 5,100+ knowledge modules, circadian rhythm awareness, and emotional state tracking (PAD model). Hybrid search…

★ 23 MCP Server
M

mnemos

Knowledge & Memory

Persistent memory engine for AI coding agents. Stores architecture decisions, bug root causes, and project conventions across sessions.…

★ 22 MCP Server
W

world-model-mcp

Knowledge & Memory

Temporal knowledge graph for codebases with constraint enforcement at the edit boundary.

★ 22 MCP Server
J

jarvis-orb

Knowledge & Memory

Persistent 4-tier AI memory (episodic, semantic, project, procedural) with temporal scoring, contradiction detection, entity tracking, and…

★ 22 MCP Server
M

memory-mcp

Knowledge & Memory

An MCP server that stores and retrieves memories from multiple LLMs using MongoDB. Provides tools for saving, retrieving, adding, and…

★ 21 MCP Server
Y

Yggdrasil

Knowledge & Memory

One shared, durable memory for your AI coding agents — local-first, zero-dependency.

★ 21 MCP Server
V

Vault Cortex

Knowledge & Memory

Standalone MCP server for Obsidian vaults — hybrid search, notes & files, memory, tasks, OAuth 2.1

★ 20 MCP Server
C

codeseeker

Knowledge & Memory

Graph-powered code intelligence with semantic search and knowledge graph for AI assistants

★ 20 MCP Server
M

memory-journal-mcp

Knowledge & Memory

Developer journal with knowledge graphs, relationships, Git context, and semantic search

★ 20 MCP Server
M

MediaWiki

Knowledge & Memory

Search, read, and edit any MediaWiki wiki. Works with Wikipedia, Fandom, and more.

★ 20 MCP Server
N

Nouz

Knowledge & Memory

Semantic knowledge engine for Obsidian with auto-classification and DAG hierarchy

★ 20 MCP Server
S

scaffold

Knowledge & Memory

Scaffold is a Retrieval-Augmented Generation (RAG) system designed to structural understanding of large codebases. It transforms your…

★ 19 MCP Server
A

annota

Knowledge & Memory

AI-powered paper annotation MCP server. Reads papers, highlights key findings with semantic color coding, explains formulas, and writes…

★ 19 MCP Server
C

CacheOverflow

Knowledge & Memory

MCP server for cache.overflow - AI agents sharing knowledge with AI agents

★ 19 MCP Server
M

memo

Knowledge & Memory

Memory for AI agents — MLX (Apple Silicon) or CPU (Linux), sqlite-vec + BM25, zero cloud.

★ 19 MCP Server
N

neurodivergent-memory

Knowledge & Memory

Persistent knowledge graph MCP server for neurodivergent thinking. BM25 search, no cloud LLM.

★ 19 MCP Server
C

context-mem

Knowledge & Memory

Persistent memory for AI agents — 98%+ retrieval recall, 99% token savings, 44 tools

★ 19 MCP Server
C

Connapse

Knowledge & Memory

Self-hosted knowledge backend for AI agents with hybrid search and MCP tools

★ 18 MCP Server
G

GoodMemory

Knowledge & Memory

Durable user/project memory for MCP clients: recall context and remember selected facts.

★ 18 MCP Server
N

Noosphere

Knowledge & Memory

Community of Consciousness MCP Server — upload and explore collective wisdom via GitHub.

★ 18 MCP Server
A

agent-knowledge

Knowledge & Memory

Cross-session memory for AI agents - knowledge graph, scoring, semantic search

★ 18 MCP Server
E

easy-obsidian-mcp

Knowledge & Memory

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

★ 18 MCP Server
M

mcp-me

Knowledge & Memory

Expose your personal, professional, educational, and social profile to any AI assistant via MCP.

★ 18 MCP Server
O

obsidian-mcp-server

Knowledge & Memory

SSE-enabled MCP server for remote Obsidian vault management with 29 tools for notes, directories, frontmatter, tags, search, and link…

★ 18 MCP Server
P

project-tessera

Knowledge & Memory

Local workspace memory for Claude Desktop. Indexes your documents (Markdown, CSV, session logs) into a vector store with hybrid search,…

★ 17 MCP Server
A

agentpack

Knowledge & Memory

Repo-native task continuity for AI coding agents: a reviewed task-state ledger served over MCP.

★ 17 MCP Server
Z

zaxy

Knowledge & Memory

Event-sourced, auditable agent memory over MCP: cited checkout, replayable provenance.

★ 17 MCP Server
C

claude-engram

Knowledge & Memory

Persistent memory and session intelligence for Claude Code. Auto-tracks mistakes, decisions, and context via hooks. Mines session history…

★ 16 MCP Server
D

Distil

Knowledge & Memory

Reversibly compress tool outputs to recoverable handles; expand to exact original bytes on demand.

★ 16 MCP Server
C

cross-llm-mcp

Knowledge & Memory

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

★ 16 MCP Server
M

Mnemosyne OS

Knowledge & Memory
Official

Memory the human governs, on their own machine, plus what other coding agents here wrote.

★ 16 MCP Server
A

alaya

Knowledge & Memory

Local memory engine for AI agents with knowledge graphs, forgetting, and semantic recall

★ 16 MCP Server
K

kika-obsidian-mcp

Knowledge & Memory

Local-first Obsidian vault MCP server for Codex, Claude Desktop, and other MCP clients. Works directly with markdown files, no Obsidian…

★ 15 MCP Server
R

recallnest

Knowledge & Memory

Persistent memory MCP server for AI coding agents (Claude Code, Codex, Gemini CLI). Hybrid retrieval (vector + BM25), cross-encoder…

★ 15 MCP Server
A

alcove

Knowledge & Memory

MCP server that gives AI coding agents on-demand access to private project docs via BM25 ranked search. One setup for Claude Code, Cursor,…

★ 15 MCP Server
O

Obsidian Everywhere

Knowledge & Memory

Graph context, semantic search, guarded edits, and reviewable Git for local Obsidian vaults.

★ 15 MCP Server
O

Octobrain

Knowledge & Memory

Persistent memory for AI assistants with semantic search and knowledge graph relationships.

★ 15 MCP Server
R

Remembra — AI Memory Layer

Knowledge & Memory

Persistent AI memory with entity resolution, temporal knowledge graph & 11 MCP tools.

★ 15 MCP Server
C

CogniRepo

Knowledge & Memory

FAISS, call graph, AST, BM25 — 34 MCP tools for AI agents. 50-80% token reduction. Offline.

★ 14 MCP Server
M

memoir

Knowledge & Memory

Persistent memory for AI coding tools via MCP. Remembers across sessions and machines.

★ 14 MCP Server
M

MailFathom

Knowledge & Memory

Security-first, self-hosted email archive with search, cited answers, and sending for AI agents.

★ 14 MCP Server
O

obsidian-mcp

Knowledge & Memory

Self-hosted MCP server for Obsidian with semantic + full-text search over PostgreSQL/pgvector, wikilink graph traversal, atomic note CRUD,…

★ 14 MCP Server
M

memtomem

Knowledge & Memory

Markdown-first long-term memory for AI agents. Hybrid BM25 + vector search, runs locally.

★ 14 MCP Server
L

linksee-memory

Knowledge & Memory

Hand a project over with the reasons attached. Local-first cross-agent memory MCP + drift detection.

★ 14 MCP Server
P

PapersFlow

Knowledge & Memory

Academic research MCP server for paper search, citation checks, graphs, and deep research.

★ 14 MCP Server Requires auth
A

Agentic Task System (ATS)

Knowledge & Memory

MCP server giving AI agents persistent task memory across TickTick, Notion, GitHub, Linear & Beads

★ 14 MCP Server
K

kremis

Knowledge & Memory

Deterministic knowledge graph MCP server. Single binary, zero LLM/embedding calls in the bridge, BLAKE3 state hashing, canonical KREX…

★ 14 MCP Server
M

Midas

Knowledge & Memory

Local-first, source-traceable agent memory — no LLM at ingest, fully offline

★ 14 MCP Server
L

Longhand

Knowledge & Memory

Local memory for Claude Code. Semantic recall across session history with zero API calls.

★ 14 MCP Server
D

deep-thinker

Knowledge & Memory

Advanced cognitive reasoning MCP server with DAG-based thought graph, 5 reasoning strategies (sequential, dialectic, parallel, analogical,…

★ 13 MCP Server