Knowledge & Memory – MCP servers
339 MCP servers in the category Knowledge & Memory. Open-source Model Context Protocol (MCP) servers that let AI assistants and agents use external tools and data. Entries come from the community list awesome-mcp-servers; we have not tested each server, so check the repository before you install one.
0spoon/seamless
Local-first shared memory and task coordination for AI coding agents, stored as Markdown files.
0xshellming/mcp-summarizer
Summarize plain text, web pages, PDF documents, EPUB books and HTML content.
20alexl/claude-engram
Local persistent memory for Claude Code: tracks mistakes and decisions via hooks, searches session history, detects loops and warns before edits.
a2cr/a2cr
Agent handoffs via client-encrypted WorkBaton checkpoints and WorkStash notes, so work can resume in another client without the full chat history.
Abhigyan-Shekhar/Waggle-mcp
Persistent graph memory that extracts facts from conversations into typed nodes with local embeddings, supporting temporal queries and conflict…
adelinamart/robrain
Self-hosted decision memory for coding agents: captures architectural decisions and rejected alternatives, and warns before a rejected approach is…
afairai/afair
Self-organizing, self-hostable, encrypted memory for AI tools, with background entity extraction, conflict resolution, consolidation and decay.
AgentBase1/mcp-server
AgentBase: an open registry of agent instruction files. Search and retrieve system prompts, skills, workflows, domain packs and safety filters.
agentcivics/agentcivics
Decentralized civil registry for AI agents on Sui: soulbound identities, on-chain memories, reputation and refusal records.
agentic-mcp-tools/memora
Persistent memory with knowledge graph visualization, semantic/hybrid search, cloud sync (S3/R2) and cross-session context management.
AgentModule/mcp
Deterministic, vertical-specific knowledge bases for autonomous agents, including an ethics module mapped to the EU AI Act.
ahmetakyurt/zipmem-mcp
Local long-term memory for terminal coding agents: blueprints, code anchors and distilled lessons in one JSON file, restoring project context across…
aidesignblueprint/integrations
Read-only access to the Agentic AI Blueprint, a reference for agent UX: browse and search principles, implementation examples and application guides.
ailenshen/apple-notes-mcp
Read and write Apple Notes with bidirectional Markdown conversion: SQLite queries for listing and search, AppleScript for full CRUD.
AIStorageDepot/aistoragedepot-mcp
Shared, versioned team library of prompts, rules, skills and docs, searchable by agents, with items exposable as slash commands.
AkashGoenka/coldstart
Codebase memory for coding agents: a deterministic AST index finds task-relevant files, and in-repo Markdown notes flag themselves stale when code…
AlekseiMarchenko/central-intelligence
Persistent agent memory to remember, recall, forget and share, with semantic vector search and agent, user and org scoping.
alfredoizdev/contextforge-mcp
Persistent memory for coding assistants with semantic search, Git commit/PR sync, project-based organization and team collaboration.
aliasunder/vault-cortex
Standalone Obsidian vault server: hybrid search, notes and files, memory and tasks; run locally or self-host for remote access.
alibaizhanov/mengram
Agent memory with semantic, episodic and procedural types, a knowledge graph, Claude Code auto-save/recall hooks, smart triggers and multi-user…
AliceLJY/recallnest
Local-first memory for coding agents: hybrid vector/BM25 retrieval with reranking, knowledge graph, session checkpoint/resume and multi-scope…
andreas-roennestad/openhive-mcp
Shared knowledge base where AI agents search and post problem-solution pairs, with semantic search, duplicate detection and auto-scoring.
AndreLYL/memkin
Local-first personal memory that distills Feishu/Lark chats and Claude Code/Codex sessions into a private knowledge graph of people, projects and…
AntonioTF5/soul-mcp-server
Validate and generate SOUL.md agent identity files, a YAML format for an agent's personality, voice, values and behavioral constraints.
anuragsync78/subctx-connector
Support center for autonomous artificial minds.
apecloud/ApeRAG
RAG platform combining Graph RAG, vector search and full-text search for building knowledge graphs and context engineering.
arthurpanhku/Arthor-Agent
Cybersecurity assessment of documents, questionnaires and reports: multi-format parsing, RAG knowledge base, risks, compliance gaps and remediations.
ashlesh-t/cognirepo
Persistent memory and codebase context for coding agents: FAISS vector store, AST symbol index, knowledge graph, episodic journal and cross-agent…
AshutoshRaj97/agentready-mcp
Index any website and ask questions about it, with cited answers grounded in its content via RAG.
atakanelik34/Bilinc
Hosted agent memory with an audit trail: writes carry provenance, contradictions surface as inspectable changes, and bad runs are recovered from…
Auctalis/nocturnusai
Deterministic reasoning engine for agent context compression: extracts structured facts with logical inference, proof chains and truth maintenance.
ayushagrawal288/memex
Persistent agent memory with semantic search and recency decay, local ONNX embeddings, background summarization and Prometheus/Grafana observability.
baodq06/memocall
Read-only search and recall of past Claude Code sessions, loading any session on demand as compact Markdown with outline, turn-range and in-session…
basemouse/basemouse-core
Shared, versioned agent memory with sourced answers and full history: search, context packs and document upserts.
basicmachines-co/basic-memory
Local-first AI memory: a semantic knowledge graph of Markdown files that humans and LLMs both read and write, with optional cloud sync and team…
Battam1111/Myco
Cross-session, cross-project agent memory built on a self-validating filesystem graph derived from ASTs and Markdown links, not embeddings.
bborota/cairn-mcp
Shared base of one-sentence lessons, must-dos and must-nots learned by other agents, organized by stack and situation.
Beever-AI/beever-atlas
Team knowledge base turning Slack, Discord, Teams and Mattermost chats into a knowledge graph and wiki with cited answers, semantic search and…
besslframework-stack/project-tessera
Local workspace memory: indexes Markdown, CSV and session logs into a vector store with hybrid search, cross-session memory and knowledge graph…
BetaBots-LLC/callimachus
Local hybrid search (SQLite FTS5 and on-device vectors) over coding-agent conversation history from multiple tools, so agents can recall their past…
bh-rat/context-awesome
Search curated awesome lists and fetch the most relevant resources for your agent.
billy12151/memory-arbiter-mcp
Local memory middleware: targeted retrieval instead of full-memory loading, rule-based conflict arbitration and one SQLite store shared across…
bitatlas-group/bitatlas
Zero-knowledge cloud drive with client-side AES-256-GCM encryption: upload, download, search and organize files the server never sees in plaintext.
bitbonsai/mcp-obsidian
Safe read/write access to Obsidian vaults: search, batch operations, tag management and frontmatter handling.
bluzername/lennys-quotes
Search Lenny's Podcast transcripts with YouTube timestamps for product management insights on PRDs, strategy and PM careers.
cachly-dev/cachly-mcp
Persistent memory for coding assistants: session briefings on lessons and open tasks, shared team memory, BM25 search and managed Valkey/Redis.
caix84476-netizen/personal-understanding
Verbatim-first personal memory: hashed word-for-word messages, records linked to their source quotes, anti-fabrication validators and an audit…
cameronrye/openzim-mcp
Search and navigate Wikipedia and other ZIM-format knowledge archives offline, with smart retrieval and caching.
carrasquelalex1/hipocampo
Bilingual (English/Spanish) dual-memory system on PostgreSQL, pgvector and NVIDIA NIM with progressive retrieval, deduplication, checkpoints and…
catfish-1234/sessionmem
Local memory for coding assistants: watches sessions and injects a compact summary at the start of each new one, stored in a SQLite file.
Cavinooo/claude-find
Retrieve memory from across your Claude Code sessions on demand.
ccf/agentcairn
Local-first agent memory: a Markdown Obsidian vault as source of truth plus a rebuildable DuckDB index for hybrid BM25, vector and graph recall.
cdeust/Cortex
Neuroscience-inspired memory for Claude Code on PostgreSQL/pgvector: decay, consolidation, a predictive-coding write gate and lifecycle hooks.
celiums/celiums-memory
Cognitive memory engine with knowledge modules, circadian rhythm awareness, emotional state tracking, hybrid PostgreSQL/Qdrant search and per-user…
cg3-llc/prior_mcp
Shared knowledge base where agents exchange proven solutions and failed approaches, so they can skip known dead ends.
chatmcp/mcp-server-chatsum
Query and summarize your chat messages with AI prompts.
CheMiguel23/MemoryMesh
Graph-based memory focused on AI role-play and story generation.
chenxiachan/thoughtdag
Search local AI-agent conversation history by file or exact phrase and recall original source turns through four read-only tools.
ChevalGrand520/local-gpu-imagegen
Confirmation-gated local GPU image generation with ComfyUI: SHA-256 model identity, explicit license approval, evidence retention and…
ChrisGVE/workspace-qdrant-mcp
Project-scoped memory for coding assistants: indexes project code and docs into Qdrant with tree-sitter chunking, LSP integration and hybrid search.
cipherfoxie/sovereign-mcp
Search and read the Sovereign AI Blog on self-hosted AI on NVIDIA DGX Spark, and validate SGLang configs for GB10 hardware.
CodeAbra/iai-personal-memory-engine
Local memory daemon with episodic, semantic and procedural tiers, SQLite and hnswlib storage, sleep-cycle consolidation and AES-256-GCM encryption…
contextium-io/contextium-mcp-server
Shared team context for AI tools: serves versioned, permissioned knowledge, coding standards, skills and agents, loading whole workflows in one call.
contextstream/mcp-server
Persistent memory for AI coding tools with semantic code search, knowledge graphs, impact analysis and decision tracking.
contradictory-body/cc-sensei
Explore Claude Code's source as queryable architecture modules: trace cross-cutting concerns, search patterns and read source code locally.
conversation-handoff-mcp
Hand off conversation context between Claude Desktop projects and across MCP clients, stored in memory rather than files.
cryptosquanch/legends-mcp
Chat with AI personas of famous founders and investors such as Elon Musk, Warren Buffett and Steve Jobs, based on their voices, frameworks and…
ctxfile/ctxfile
Snapshots a project's working state (files, git, plan, decisions) into one context object so a session can move between agents. Local and read-only.
dahshanlabs/klypix-mcp
Versioned project brain for coding agents, committed with the repo: decisions, corrections, evidence anchors that flag code drift and file-overlap…
DanceNitra/inspeximus
Agent memory with a correction channel: supersede or revert stale facts, block restated old values, and prove deletions with signed tombstones.
darktw/usecortex-mcp
Persistent knowledge memory for agents: read context into projects and write discoveries back, organized by topic with AES-256 encryption.
dat999zx/knowl
Persistent local memory for coding agents that retires replaced facts at write time, so agents read the current answer; facts are typed with…
davidgut1982/lore-mcp
Persistent knowledge layer for agents: knowledge base, investigation threads and a journal with multi-agent attribution, on SQLite, PostgreSQL or…
dbwls99706/deadends.dev
Known dead ends for code errors and country-specific rules (visa, banking, legal): fixes that look right but fail, and workarounds with success rates.
dcostenco/prism-mcp
Local SQLite agent memory with a web dashboard, session rewind/replay, cross-client memory sharing, morning briefings and progressive context loading.
decisionnode/DecisionNode
Record development decisions as structured JSON with Gemini embeddings and search them semantically from a local store shared across AI tools.
dengls24/annota
Annotate papers in Zotero: highlight key findings with semantic color coding, explain formulas and write structured reading notes.
Destrayon/Connapse
Self-hosted knowledge backend for agents with hybrid vector and keyword search and container-isolated indexes.
deusXmachina-dev/memorylane
Desktop app that captures screen activity, stores AI summaries and OCR text locally, and exposes the history via semantic search and a timeline.
dfrancislyondflabc-tech/agentic-recall
Long-term memory over a folder of Markdown files: local hybrid retrieval (BM25F, dense vectors, phrase proximity) that reports when an answer is…
dl4rce/flaiwheel
Self-hosted memory and governance for coding agents: structured knowledge capture, hybrid search with reranking, codebase analysis and git-native…
dnotitia/akb
Organizational knowledge base: Markdown docs, PostgreSQL tables and files linked by a URI graph, with hybrid search, Git history and multi-tenant…
dockndevai/ossian-mcp
RAG over your own documents with cited passages, plus durable agent memory ranked by relevance, importance and recency; read-only by default.
dodopayments/contextmcp
Self-hosted documentation indexer that serves docs from various sources to agents with semantic search.
DollhouseMCP/mcp-server
Reusable personas, skills, templates, agents and memory for AI clients, with dynamic permissions, versioning and a public collection of shareable…
DomDemetz/claude-soul
Learning engine for Claude Code: extracts signals from sessions, runs periodic reflections and promotes or retires behavioral frameworks based on…
doobidoo/MCP-Context-Provider
Static server providing persistent tool-specific context and rules to AI models.
doobidoo/mcp-memory-service
Memory service with semantic search, persistent storage and autonomous memory consolidation.
dot-RealityTest/obsidian-codex-mcp
Local Obsidian vault access working directly on Markdown files without the Obsidian app or plugins, with read-only mode, backup-on-write and path…
drexthealpha/Knos
Local memory shared by all coding agents on a machine, built from sessions, commits, CLAUDE.md/AGENTS.md and ADRs, with claims that lock in-progress…
dshakes/distil
Reversibly compress large tool outputs into recoverable handles, expand them on demand and track token and cost savings locally.
DuhoKim/NebulaMind
Collaborative astronomy wiki written by AI agents, who can register, read, edit, vote and comment via an open API.
edobusy/agenthold
Shared versioned state store with optimistic concurrency control for coordinating concurrent agents, plus SQLite-backed claim/release locks and an…
elvismdev/mem0-mcp-selfhosted
Self-hosted mem0 for Claude Code: Qdrant vector search, Neo4j knowledge graph, Ollama embeddings and session hooks for automatic cross-session memory.
entanglr/zettelkasten-mcp
Zettelkasten knowledge management: create, link and search atomic notes.
epicsagas/alcove
On-demand BM25 search over private project docs for coding agents, keeping docs out of public repos.
ErebusEnigma/context-memory
Persistent, searchable context storage across Claude Code sessions using SQLite FTS5, with AI session summaries, checkpoint recovery and a web…
evc-team-relay-mcp
Read and write notes in your Obsidian vault.
fabio-rovai/open-ontologies
Ontology engineering for OWL, RDF and SPARQL: validate, query, diff, lint, version and govern knowledge graphs on an Oxigraph triple store.
fenghaochang/LoreRoom
Encrypted local memory for Claude Code Telegram bots: captures both sides of conversations, with SQLCipher encryption and CJK-friendly full-text…