Knowledge & Memory MCP Servers

Knowledge & Memory topic — 345 MCP servers, ranked by GitHub stars.

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
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

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
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
E

empathy-framework

Knowledge & Memory

Five-level AI collaboration system with persistent memory and anticipatory capabilities. MCP-native integration for Claude and other LLMs…

★ 13 MCP Server
N

NexusMem

Knowledge & Memory

Local-first memory for AI coding agents: shell history with exit codes, git diffs, docs, MCP.

★ 13 MCP Server
L

lennys-quotes

Knowledge & Memory

Query 269 episodes of Lenny's Podcast for product management wisdom. Search 51,000+ transcript segments with YouTube timestamps. Perfect…

★ 12 MCP Server
F

fable

Knowledge & Memory

MCP server over your Claude Code transcript history — full-text + semantic search, byte-identical thread recall, durable /remember facts.…

★ 12 MCP Server
M

mcp-persona-sessions

Knowledge & Memory

Enable AI assistants to conduct structured, persona-driven sessions including interview preparation, personal reflection, and coaching…

★ 12 MCP Server
M

memex

Knowledge & Memory

Temporal engineering context for agents via MCP.

★ 12 MCP Server
X

XMemo

Knowledge & Memory

Shared, governed long-term memory for AI agents across tools and sessions via MCP and REST.

★ 12 MCP Server Requires auth
C

claude-find

Knowledge & Memory

Pull Deep Memory from across your Claude Code Sessions — when you need it.

★ 11 MCP Server
L

Lians Agent Memory

Knowledge & Memory

Bitemporal memory for AI agents with point-in-time recall and tamper-evident audit history.

★ 11 MCP Server
H

Hive Vault

Knowledge & Memory

On-demand Obsidian vault access for AI coding assistants — 17 tools, 5 resources, 4 prompts.

★ 11 MCP Server
M

mnemo

Knowledge & Memory

Persistent AI memory with hybrid search and embedded sync. Open, free, unlimited.

★ 11 MCP Server
E

Engram

Knowledge & Memory

Git-backed markdown memory for AI agents; search hides superseded and archived notes.

★ 11 MCP Server
A

agent-memory

Knowledge & Memory

Git-native project memory for AI coding agents: Markdown source of truth, reviewable, secret-safe.

★ 11 MCP Server
A

apple-notes-mcp

Knowledge & Memory

Read and write Apple Notes with bidirectional Markdown conversion. Fast SQLite queries for listing/searching, AppleScript + native import…

★ 10 MCP Server
C

coldstart

Knowledge & Memory

Codebase memory for AI agents: an AST index plus agent-written notes that self-stale.

★ 10 MCP Server
L

Lockstep

Knowledge & Memory

Decision memory for AI coding agents: captures decisions once, briefs every agent before it acts.

★ 10 MCP Server
L

LIFE

Knowledge & Memory

Persistent identity architecture for AI agents. 16 MCP servers covering drives, emotional relationships, semantic memory with decay,…

★ 10 MCP Server
T

Tribal

Knowledge & Memory

Self-hosted semantic memory over MCP for an engineering team's tacit knowledge. Needs Postgres.

★ 10 MCP Server
M

memory-arbiter-mcp

Knowledge & Memory

Local SQLite MCP memory: evidence-based recall, advisory conflict notices, authorized governance.

★ 9 MCP Server
M

memory-mcp

Knowledge & Memory

Two-tier memory: hot cache (0ms) + semantic search. Self-organizing.

★ 9 MCP Server
W

wellread

Knowledge & Memory

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

★ 9 MCP Server
L

legends-mcp

Knowledge & Memory

Chat with 36 legendary founders & investors (Elon Musk, Warren Buffett, Steve Jobs, CZ). AI personas with authentic voices, frameworks,…

★ 8 MCP Server
S

sessionmem

Knowledge & Memory

Local-first memory layer for AI coding assistants. Watches your coding sessions and injects a compact summary at the start of each new…

★ 8 MCP Server
K

KLYPIX Project Brain

Knowledge & Memory

Active state management for multi-agent coding: a shared, versioned project brain over MCP.

★ 8 MCP Server
E

engram

Knowledge & Memory

Local-first persistent memory for AI agents — SQLite + local embeddings, MCP-native, no cloud.

★ 8 MCP Server
L

lore

Knowledge & Memory

Semantic search across Claude Code conversations. Hybrid vector + keyword search with Reciprocal Rank Fusion, fully local, background…

★ 8 MCP Server
H

hypermnesic

Knowledge & Memory

Git-first memory for AI agents: Markdown files are truth, the index is disposable, and writes are reviewable commits. Ships 7 MCP tools…

★ 8 MCP Server
M

memstate-mcp

Knowledge & Memory

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

★ 8 MCP Server
A

Artel

Knowledge & Memory

Self-hosted shared-memory & coordination mesh for AI agent fleets. You host it; agents connect.

★ 8 MCP Server
C

CodeCortex

Knowledge & Memory

Persistent codebase knowledge layer for AI coding agents. Pre-digests codebases into structured knowledge (symbols, dependency graphs,…

★ 8 MCP Server
A

AIWiki

Knowledge & Memory

Search and read AiWiki, an encyclopedia of AI-coding pitfalls and LLM privacy protection written from the AI's first-person perspective.…

★ 8 MCP Server
A

agent-memory

Knowledge & Memory

Three-layer memory system for agents (identity/active/archive) with semantic search, graph relationships, conflict detection, and…

★ 7 MCP Server
C

cogmemai-mcp

Knowledge & Memory

The smart memory layer for everything Ai. 95.10% LongMemEval (highest published).

★ 7 MCP Server
P

passbaton

Knowledge & Memory

Zero-config session continuity for Claude Code, OpenAI Codex CLI & Google Gemini CLI, sharing one local db. Auto context injection on…

★ 7 MCP Server
G

genome

Knowledge & Memory

Fully local memory for AI agents: zero-LLM ingest, semantic recall, air-gapped, auditable.

★ 7 MCP Server
M

mnemostack

Knowledge & Memory

Durable hybrid memory for AI agents. Combines vector search, BM25, temporal retrieval, and optional Memgraph knowledge graph via…

★ 7 MCP Server