MCP Server Directory

45,118 Model Context Protocol servers for Claude Code, Claude Desktop, Cursor and every MCP client. Filter by what they do, whether they run locally or remotely, and whether they're free.

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866 servers in Knowledge, Memory & RAG

3dprint Oracle

1212

gregario/3dprint-oracle

3D printing filament knowledge base from SpoolmanDB: search filaments, compare material properties and print settings, and diagnose print issues.

LocalFreeTypeScriptKnowledge, Memory & RAG

ArkHive

1

sammyboi81/arkhive

Local-first, tamper-evident AI memory with a SHA-256 ledger, recall, verification, and governed decisions.

LocalFreePythonKnowledge, Memory & RAG

BovedIA

1180

jmpdsevilla/BovedIA

Personal memory for Claude Code in plain Markdown notes, with a router note that decides what context to load and a layer for thoughts and feelings.

LocalFreeTypeScriptKnowledge, Memory & RAG

Claude Handoff

1

Vasilispapg/claude-handoff

Claude Code session handoffs: turns any transcript, even crashed ones, into a handoff file and distills project history into a cited memory brief.

LocalFreePythonKnowledge, Memory & RAG

Compound Memory

1

chinwe/compound-memory

Local-first shared memory for multiple AI agents that compounds in value: feedback-driven confidence, cross-agent validation, neighbor recall and distillation; Markdown files with auto git history, 5 MCP tools + CLI.

LocalFreePythonKnowledge, Memory & RAG

Echocache

1218

kskurtveit/echocache

Cache expensive LLM results with HTTP-style freshness (TTL, stale-while-revalidate) and semantic recall of related past answers.

LocalFreeTypeScriptKnowledge, Memory & RAG

JidoSeal

1

Jidoseal/jidoseal-mcp

Checks a folder of Markdown docs for missing Open Knowledge Format (OKF) frontmatter fields, locally; writes only .jidoseal/ in that folder. MCP server Apache-2.0, scan engine proprietary; no network use during a scan is a vendor claim.

LocalFreePythonKnowledge, Memory & RAG

Knos

1

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 work.

Local + RemoteFreePythonKnowledge, Memory & RAG

LinkLore

1

linklore/linklore-mcp

Structured memory for coding agents: typed lore and doc entries with status and links that agents read and write.

LocalFreePythonKnowledge, Memory & RAG

LocalKeep

1

zuneracodes/localkeep

Local-first chronological memory: write dated, editable memory banks in a local UI, and Claude recalls them on demand via SQLite FTS5.

LocalFreePythonKnowledge, Memory & RAG

md-vision

1114

japlete/md-vision-mcp

Read Markdown with inlined images and heading indexes for agentic RAG over local docs or allowed URLs.

LocalFreeTypeScriptKnowledge, Memory & RAG

memex

1

ayushagrawal288/memex

Persistent agent memory with semantic search and recency decay, local ONNX embeddings, background summarization and Prometheus/Grafana observability.

LocalFreePythonKnowledge, Memory & RAG

NinFenz Content Gate

1864

Monyeah777/NinFenz

Content contract layer as a read-only MCP server: protocol specs, modules, pipelines, assets, and the knowledge library for long-form content; 12 read-only tools plus an assembly prompt, Python stdlib only, no write paths.

LocalFreePythonKnowledge, Memory & RAG

Project Memory

1

kaaustubh/project-memory-mcp

Persistent memory for coding agents in plain repo files (AGENTS.md, issues.jsonl): captures bugs, fixes, decisions and corrections and recalls them later.

LocalFreeTypeScriptKnowledge, Memory & RAG

RAG

1

jaimenbell/rag-mcp

Minimal local RAG that vector-searches a document corpus and returns cited passages.

LocalFreePythonKnowledge, Memory & RAG

Repo Memory

1

yubinkim444/repo-memory

Shared, git-tracked memory for AI agents on the same codebase: facts, decisions and gotchas stored in a committed repo directory and synced via git.

LocalFreePythonKnowledge, Memory & RAG

robo-cortex

1

robotel-limited/robo-cortex

Git-aware memory store for coding agents: memories anchored to git blob hashes are flagged for review when the linked code changes.

LocalFreePythonKnowledge, Memory & RAG

vivac

1

JAAvila-Of/vivac

A provenance tree for coding agents: every node records the node it was born from, so the agent can ask why the work is where it is. A session brief with the standing decisions and what not to touch, a close that refuses over open work, and decisions kept with the alternatives they rejected. Local JSON-lines file, no telemetry.

LocalFreeRustKnowledge, Memory & RAG

Aidimag

1569

AiDimag/aidimag

Persistent, verified memory for AI coding agents: recall, capture, guardrails, review queue.

LocalFreeKnowledge, Memory & RAG

AppWrangler

1

IntarsO/AppWrangler

Per-app CPU, efficiency-core and memory control for Apple Silicon Macs, with suggestions and undo.

LocalFreeKnowledge, Memory & RAG

AsterMind

1

AsterMindAI/astermind-mcp

On-device reranking that cuts RAG context tokens ~67% while keeping a relevant passage.

LocalFreeKnowledge, Memory & RAG

Booboo

1

jessymariau/booboo

Query your AI system's wiring, knowledge, memory, agents and crons as one rooted graph over MCP.

LocalFreeKnowledge, Memory & RAG

BookMCP

1

Prem5123/BookMCP

Cited book knowledge for agents working on system design and implementation.

LocalFreeKnowledge, Memory & RAG

Clarik

1191

Mikerichardmail/clarik-mcp-server

Clarity and memory persistent workspace context manager for Claude.

LocalFreeKnowledge, Memory & RAG

Coador

1

automaticqa/coador

Evidence-backed Android repository knowledge for humans and AI agents

LocalFreeKnowledge, Memory & RAG

codeagent-memory

1

HanochZhu/codeagent_memory

Local code graph and solution memory for coding agents via CLI and MCP.

LocalFreeKnowledge, Memory & RAG

Cognitive Substrate

1

JaysonAIOnline/mcp-cognitive-substrate

28-layer cognitive substrate with cross-session ToT evolutionary memory and self-telemetry tools

LocalFreeKnowledge, Memory & RAG

Cognos Session Memory

1

base76-research-lab/cognos-session-memory

CognOS trust scoring (C=p·(1-Ue-Ua)) and session trace storage as MCP tools.

LocalFreeKnowledge, Memory & RAG

CogSession

1

premanand8800/cogsession

Session memory for AI coding agents: records decisions and dead ends, flags what went stale.

LocalFreeKnowledge, Memory & RAG

Context Engine

1

shamsundarsk/contextengine-

Local-first persistent context memory MCP server for AI coding agents.

LocalFreeKnowledge, Memory & RAG

Context Keeper

1

jarmstrong158/context-keeper

Durable project-memory MCP: decisions, constraints, and pipelines across Claude sessions.

LocalFreeKnowledge, Memory & RAG

ContextDB Memory

1

mikhailbovt/ContextDB-Codex

Local-first durable AI memory with policy-bound recall and a typed project graph.

LocalFreeKnowledge, Memory & RAG

ContextLib

1

willykeenan/agentbrain-contextlib

A project's long-term memory as plain Markdown files, with an append-only, tamper-evident log.

LocalFreeKnowledge, Memory & RAG

Cortex

1

VBlackJack/Cortex

Local multi-client RAG server over the Model Context Protocol.

LocalFreeKnowledge, Memory & RAG

CP Memory

1

CJhuochai/cp-memory

Local-first, governable long-term memory for AI coding agents

LocalFreeKnowledge, Memory & RAG

Dense Knowledge

1

Lucky44k/dense-knowledge-mcp

Local-first MCP memory server for persistent LLM knowledge with BM25 retrieval.

LocalFreeKnowledge, Memory & RAG

Engram

1

devinmlowe/engram

Cognitive memory for coding agents: hybrid recall, remember/forget, knowledge graph, nightly dreams.

LocalFreeKnowledge, Memory & RAG

Factsets

1215

joshua-auchincloss/factsets

An MCP server that provides a local, persistent, self-maintaining knowledge base for AI agents

LocalFreeKnowledge, Memory & RAG

feedback-memory

1

ssap-pa/self-learning-agent-setup

Remembers why you approved, edited or rejected your agent's drafts; recalls the closest corrections

LocalFreeKnowledge, Memory & RAG

FL Studio Agent

1

origami-research/fl-studio-agent

Drive FL Studio from an AI agent: write notes, set tempo and levels, check what sounds, render.

LocalFreeKnowledge, Memory & RAG

heropen — AI Agent Memory

1

Koradji77/heropen

Persistent memory for AI agents: local-first MCP server, zero-config. No cloud, no API keys.

LocalFreeKnowledge, Memory & RAG

Inkbolt vector and raster editor

1

skulitom/Inkbolt

Local vector and raster editing engine for agents: layered documents, saved sessions and exports.

LocalFreeKnowledge, Memory & RAG

KitchenSink4PPT

1

KitchenSink4AI/KitchenSink4PPT

PowerPoint (.pptx) MCP server: editable vector diagrams, tables, budgeted reads, render-to-verify

LocalFreeKnowledge, Memory & RAG

Knowledge Graph

1

zcsabbagh/knowledge-graph-mcp

Knowledge graph MCP for student learning with spaced repetition and mastery tracking

LocalFreeKnowledge, Memory & RAG

loci

1

3M1RY33T/loci

Scoped memory for coding agents: picks the right project, answers in scope, or abstains.

LocalFreeKnowledge, Memory & RAG

Logbook

1

cocaxcode/logbook-mcp

Developer logbook MCP server. Notes, TODOs, standups, decisions, debug sessions, reminders.

LocalFreeKnowledge, Memory & RAG

Lore Memory for Windows

1

fayzkk889/lore

Cited local coding-agent history for fresh Codex and Claude Desktop chats on Windows.

LocalFreeKnowledge, Memory & RAG

macOS Apps

1

elfensky/macos-apps-mcp

Mail, Calendar, Reminders, Notes, Messages and more on macOS: cited pointers, previewed deletes

LocalFreeKnowledge, Memory & RAG