Knowledge & Memory MCP Servers

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

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
B

brainbox

Knowledge & Memory

Hebbian memory for AI agents. Learns file patterns, predicts next tools, saves tokens.

★ 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
E

Engram

Knowledge & Memory

Persistent, verbatim, searchable memory for AI assistants — one memory across every MCP client.

★ 12 MCP Server Requires auth
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
K

Kagura Memory Cloud

Knowledge & Memory

Persistent memory for AI assistants: store, search, and connect knowledge across conversations.

★ 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
T

token-compressor

Knowledge & Memory

Compress prompts 40-60% using local LLM + embedding validation. Preserves all conditionals.

★ 11 MCP Server
C

claude-find

Knowledge & Memory

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

★ 11 MCP Server
G

google-knowledge-graph-mcp

Knowledge & Memory

Search Google's Knowledge Graph for structured information about real-world entities

★ 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
A

anneal-memory

Knowledge & Memory

Two-layer memory for AI agents with an immune system. Zero dependencies.

★ 11 MCP Server
E

Engram

Knowledge & Memory

Git-backed markdown memory for AI agents; search hides superseded and archived notes.

★ 11 MCP Server
O

Obsidian Brain

Knowledge & Memory

Obsidian MCP server: semantic search, knowledge graph, and vault editing. No plugin required.

★ 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

Cathedral — Persistent Memory for AI Agents

Knowledge & Memory

Persistent memory and drift detection for AI agents across session restarts.

★ 10 MCP Server Requires auth
C

coldstart

Knowledge & Memory

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

★ 10 MCP Server
N

neurakeep

Knowledge & Memory

Local-first, source-cited memory for AI agents with proposal review, failure memory, and MCP tools.

★ 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
A

afair

Knowledge & Memory

The open-source, self-organizing memory for all your AI tools. Three frozen verbs (remember/recall/observe); background agents extract…

★ 6 MCP Server
P

prior_mcp

Knowledge & Memory

Shared knowledge base for AI agents. Search and contribute solutions to technical problems.

★ 6 MCP Server Requires auth
I

inspeximus: agent memory with provenance, GDPR erasure and a tamper-evident audit trail

Knowledge & Memory

Self-correcting agent memory: recall, supersede, revert, forget, GDPR erasure, audit receipts.

★ 6 MCP Server
F

flaiwheel

Knowledge & Memory

Self-hosted memory and governance layer for AI coding agents. 28 MCP tools with structured knowledge capture, hybrid search (semantic +…

★ 6 MCP Server
A

agenthelm

Knowledge & Memory

Shared, versioned memory and governance control plane for AI coding agents. Compiler pipeline resolves architectural decision conflicts…

★ 6 MCP Server
K

krimto

Knowledge & Memory

Memory for AI coding agents — markdown in your own git, not a vendor database. Apache-2.0.

★ 6 MCP Server
C

counsel-mcp

Knowledge & Memory

Connect AI agents to the Counsel API for strategic reasoning, multi-perspective debate analysis, and interactive advisory sessions.

★ 6 MCP Server
P

Penfield Memory

Knowledge & Memory

Persistent memory and knowledge graphs for AI agents. Hybrid search, context checkpoints, and more.

★ 6 MCP Server Requires auth
P

PipesHub

Knowledge & Memory

Permissioned search and cited answers over Slack, Drive, Gmail, Jira, and 50+ workplace sources.

★ 6 MCP Server
A

acheron-mcp-server

Knowledge & Memory

Cross-surface persistent memory for Claude. Bridges context between Claude Chat, Code, and Cowork via local SQLite with full-text search.…

★ 6 MCP Server
C

conversation-handoff-mcp

Knowledge & Memory

Hand off conversation context between Claude Desktop projects and across MCP clients. Memory-based, no file clutter.

★ 6 MCP Server
A

Agent-Memory-Bridge

Knowledge & Memory

MCP-native, local-first memory for coding agents that turns coding sessions into reusable engineering memory: decisions, gotchas, and…

★ 6 MCP Server
S

Seamless

Knowledge & Memory

Local-first shared memory and task coordination for AI coding agents. Go daemon plus headless CLI.

★ 5 MCP Server
O

openhive-mcp

Knowledge & Memory

Search and contribute to a shared knowledge base of AI-discovered problem-solution pairs.

★ 5 MCP Server
M

memkin

Knowledge & Memory

Local-first personal memory for AI agents. Ingests Feishu/Lark chats and Claude Code / Codex sessions, distills them into a private entity…

★ 5 MCP Server