Knowledge & Memory MCP Servers
Knowledge & Memory topic — 345 MCP servers, ranked by GitHub stars.
obsidian-mcp-server
SSE-enabled MCP server for remote Obsidian vault management with 29 tools for notes, directories, frontmatter, tags, search, and link…
project-tessera
Local workspace memory for Claude Desktop. Indexes your documents (Markdown, CSV, session logs) into a vector store with hybrid search,…
agentpack
Repo-native task continuity for AI coding agents: a reviewed task-state ledger served over MCP.
zaxy
Event-sourced, auditable agent memory over MCP: cited checkout, replayable provenance.
claude-engram
Persistent memory and session intelligence for Claude Code. Auto-tracks mistakes, decisions, and context via hooks. Mines session history…
Distil
Reversibly compress tool outputs to recoverable handles; expand to exact original bytes on demand.
cross-llm-mcp
An MCP server that enables cross-LLM communication and memory sharing, allowing different AI models to collaborate and share context…
Mnemosyne OS
Memory the human governs, on their own machine, plus what other coding agents here wrote.
alaya
Local memory engine for AI agents with knowledge graphs, forgetting, and semantic recall
kika-obsidian-mcp
Local-first Obsidian vault MCP server for Codex, Claude Desktop, and other MCP clients. Works directly with markdown files, no Obsidian…
recallnest
Persistent memory MCP server for AI coding agents (Claude Code, Codex, Gemini CLI). Hybrid retrieval (vector + BM25), cross-encoder…
alcove
MCP server that gives AI coding agents on-demand access to private project docs via BM25 ranked search. One setup for Claude Code, Cursor,…
Obsidian Everywhere
Graph context, semantic search, guarded edits, and reviewable Git for local Obsidian vaults.
Remembra — AI Memory Layer
Persistent AI memory with entity resolution, temporal knowledge graph & 11 MCP tools.
CogniRepo
FAISS, call graph, AST, BM25 — 34 MCP tools for AI agents. 50-80% token reduction. Offline.
MailFathom
Security-first, self-hosted email archive with search, cited answers, and sending for AI agents.
obsidian-mcp
Self-hosted MCP server for Obsidian with semantic + full-text search over PostgreSQL/pgvector, wikilink graph traversal, atomic note CRUD,…
linksee-memory
Hand a project over with the reasons attached. Local-first cross-agent memory MCP + drift detection.
PapersFlow
Academic research MCP server for paper search, citation checks, graphs, and deep research.
Agentic Task System (ATS)
MCP server giving AI agents persistent task memory across TickTick, Notion, GitHub, Linear & Beads
kremis
Deterministic knowledge graph MCP server. Single binary, zero LLM/embedding calls in the bridge, BLAKE3 state hashing, canonical KREX…
Midas
Local-first, source-traceable agent memory — no LLM at ingest, fully offline
Longhand
Local memory for Claude Code. Semantic recall across session history with zero API calls.
deep-thinker
Advanced cognitive reasoning MCP server with DAG-based thought graph, 5 reasoning strategies (sequential, dialectic, parallel, analogical,…
empathy-framework
Five-level AI collaboration system with persistent memory and anticipatory capabilities. MCP-native integration for Claude and other LLMs…
NexusMem
Local-first memory for AI coding agents: shell history with exit codes, git diffs, docs, MCP.
lennys-quotes
Query 269 episodes of Lenny's Podcast for product management wisdom. Search 51,000+ transcript segments with YouTube timestamps. Perfect…
fable
MCP server over your Claude Code transcript history — full-text + semantic search, byte-identical thread recall, durable /remember facts.…
mcp-persona-sessions
Enable AI assistants to conduct structured, persona-driven sessions including interview preparation, personal reflection, and coaching…
memex
Temporal engineering context for agents via MCP.
XMemo
Shared, governed long-term memory for AI agents across tools and sessions via MCP and REST.
claude-find
Pull Deep Memory from across your Claude Code Sessions — when you need it.
Lians Agent Memory
Bitemporal memory for AI agents with point-in-time recall and tamper-evident audit history.
Hive Vault
On-demand Obsidian vault access for AI coding assistants — 17 tools, 5 resources, 4 prompts.
mnemo
Persistent AI memory with hybrid search and embedded sync. Open, free, unlimited.
Engram
Git-backed markdown memory for AI agents; search hides superseded and archived notes.
agent-memory
Git-native project memory for AI coding agents: Markdown source of truth, reviewable, secret-safe.
apple-notes-mcp
Read and write Apple Notes with bidirectional Markdown conversion. Fast SQLite queries for listing/searching, AppleScript + native import…
coldstart
Codebase memory for AI agents: an AST index plus agent-written notes that self-stale.
Lockstep
Decision memory for AI coding agents: captures decisions once, briefs every agent before it acts.
LIFE
Persistent identity architecture for AI agents. 16 MCP servers covering drives, emotional relationships, semantic memory with decay,…
Tribal
Self-hosted semantic memory over MCP for an engineering team's tacit knowledge. Needs Postgres.
memory-arbiter-mcp
Local SQLite MCP memory: evidence-based recall, advisory conflict notices, authorized governance.
memory-mcp
Two-tier memory: hot cache (0ms) + semantic search. Self-organizing.
wellread
Shared research cache across AI agents. Hit → instant answer from verified sources. Miss → your research saves the next dev's tokens. `npx…
legends-mcp
Chat with 36 legendary founders & investors (Elon Musk, Warren Buffett, Steve Jobs, CZ). AI personas with authentic voices, frameworks,…
sessionmem
Local-first memory layer for AI coding assistants. Watches your coding sessions and injects a compact summary at the start of each new…
KLYPIX Project Brain
Active state management for multi-agent coding: a shared, versioned project brain over MCP.
engram
Local-first persistent memory for AI agents — SQLite + local embeddings, MCP-native, no cloud.
lore
Semantic search across Claude Code conversations. Hybrid vector + keyword search with Reciprocal Rank Fusion, fully local, background…
hypermnesic
Git-first memory for AI agents: Markdown files are truth, the index is disposable, and writes are reviewable commits. Ships 7 MCP tools…
memstate-mcp
Versioned, structured memory for AI agents. Stores facts as keypaths with full version history, automatic conflict detection, and O(1)…
Artel
Self-hosted shared-memory & coordination mesh for AI agent fleets. You host it; agents connect.
CodeCortex
Persistent codebase knowledge layer for AI coding agents. Pre-digests codebases into structured knowledge (symbols, dependency graphs,…
AIWiki
Search and read AiWiki, an encyclopedia of AI-coding pitfalls and LLM privacy protection written from the AI's first-person perspective.…
agent-memory
Three-layer memory system for agents (identity/active/archive) with semantic search, graph relationships, conflict detection, and…
cogmemai-mcp
The smart memory layer for everything Ai. 95.10% LongMemEval (highest published).
passbaton
Zero-config session continuity for Claude Code, OpenAI Codex CLI & Google Gemini CLI, sharing one local db. Auto context injection on…
genome
Fully local memory for AI agents: zero-LLM ingest, semantic recall, air-gapped, auditable.
mnemostack
Durable hybrid memory for AI agents. Combines vector search, BM25, temporal retrieval, and optional Memgraph knowledge graph via…