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

Trail

0394

arsprengel/trail-mcp

Issue tracker and durable project memory for your coding agent, scoped to the folder you open.

LocalFreeKnowledge, Memory & RAG

Tugra

0223

dogrucanemek-alt/tugra

Provenance-aware memory format for AI agents: every claim carries its source, age and boundary.

LocalFreeKnowledge, Memory & RAG

unerr

unerr-ai/unerr-cli

Operational memory for AI agents: code graph, session memory & guardrails. No context rot.

LocalFreeKnowledge, Memory & RAG

Universal Research

0

mp-juns/universal-research-mcp

Provenance-first research memory with hash-bound evidence and a fail-closed eligibility gate.

LocalFreeKnowledge, Memory & RAG

Uuaid

0

uuaid/uuaid

Permanent identity + encrypted, quantum-ready memory that outlives the session, for any AI agent.

LocalFreeKnowledge, Memory & RAG

Vanguard Memory Node

0

ezumba/vanguard-memory-node

Local deterministic BM25 memory for AI agents. Offline-first, no API key, SHA-256 shards, stdio.

LocalFreeKnowledge, Memory & RAG

VasperaMemory

RCOLKITT/VasperaMemory

Persistent AI memory for coding assistants. 80+ tools for decisions, patterns, errors.

LocalFreeKnowledge, Memory & RAG

Vault Health

0

onetrueclaude-creator/vault-health-mcp

Obsidian vault structural health: broken links, orphans, missing frontmatter, safe auto-repair.

LocalFreeKnowledge, Memory & RAG

vaultguard

0

ashishrao-4/vaultguard

AI agents use your Obsidian secrets by name — values never reach their context.

LocalFreeKnowledge, Memory & RAG

Vaultwarden Drop Slot

0

ip2k/vaultwarden-drop-slot-mcp

Create-only, age-encrypted deposits of new logins and notes into Vaultwarden, without vault reads.

LocalFreeKnowledge, Memory & RAG

Vector Knowledge Graph

0

CSOAI-ORG/vector-knowledge-graph-mcp

AI-powered vector knowledge graph MCP server for agents. Supports add node, add edge, semantic node

LocalFreeKnowledge, Memory & RAG

Vector Mirror

c64dos-png/vector-mirror

Deterministic SVG perception for LLM agents — measures, never guesses. MCP server.

LocalFreeKnowledge, Memory & RAG

Vectordecisions

0

NikitaDatar/vectordecisions-mcp-server

AI Governance MCP Server - GATRI trust scoring, kill-switch, EU AI Act compliance for Claude

LocalFreeKnowledge, Memory & RAG

Vectorise Me

JonathanWeerakkody/Vectorise_Me

Vectorize images to SVG and export to PDF, EPS, DXF, PNG, JPG, or WEBP via Vectorise.Me.

LocalFreeKnowledge, Memory & RAG

VibeLawyer

0

Jack-mi/vibelawyer

Local MCP for Chinese criminal dossier review; Word notes + Excel catalogs stay on-device.

LocalFreeKnowledge, Memory & RAG

Vibemind Ableton

0

dmcsite/vibemind-ableton

Claude builds FL Studio and Ableton Live sessions: notes, presets, mixer, automation, measured mixes

LocalFreeKnowledge, Memory & RAG

vocce transcribe

0

cmoonagent/vocce-agent

Agent media tools: transcribe, summarize, notes, flashcards, doc Q&A, PDF compress. No API key.

LocalFreeKnowledge, Memory & RAG

What's Loaded

0

stcmain/whats-loaded-mcp

What fills your agent's context window before a session starts: skill descriptions, memory files.

LocalFreeKnowledge, Memory & RAG

Wikidata + Google Knowledge Graph

com.dondego/wikidata-google-knowledge-mcp

Read-only Wikidata tools and identity evidence. Local optional Google KG; bounded public remote.

Local + RemoteFreeKnowledge, Memory & RAG

WireCat Memo

0

WireCatLabs/cli-memo

People's context across messengers, notes and mail, from a local store. Set up the memo CLI first.

LocalFreeKnowledge, Memory & RAG

WorkFlow Companion

0

TeamDzX/workflow-companion

Claude on Windows or Linux works in your WorkFlow tasks, notes and projects via your own iCloud.

LocalFreeKnowledge, Memory & RAG

Wuniq KE (Knowledge Engine)

0

Wuniq/wuniq-mcp

The structured memory layer your AI is missing. Requires the free Wuniq desktop app.

LocalFreeKnowledge, Memory & RAG

yandexgpt

0

theYahia/yandexgpt-mcp

MCP server for YandexGPT — completions, embeddings, classification, summarization (Russia)

LocalFreeKnowledge, Memory & RAG

Yaps

0

richawo/yaps-mcp

Transcription, subtitles, meeting transcripts, translation, audio conversion, and private memory.

LocalFreeKnowledge, Memory & RAG

Zaaheen

0

shahbaz242630/zaaheen

One encrypted memory for all your AI apps, on your computer. Needs the Zaaheen app (30 days free).

LocalFreeKnowledge, Memory & RAG

Zas

0

soke1556/zas-agent

Move files and notes between a coding agent and your Zas channels, encrypted here or via Directo.

LocalFreeKnowledge, Memory & RAG

Zenitsu

0

ANSHAY/zenitsu-releases

Your local Zenitsu tasks and notes for AI apps. Needs the Zenitsu app (Linux).

LocalFreeKnowledge, Memory & RAG

ZettelForge

rolandpg/zettelforge

Agentic memory for cyber threat intelligence. STIX graphs, actor aliasing, offline RAG, Sigma/YARA.

LocalFreeKnowledge, Memory & RAG

水素分子医学文献データベース

0

h2-papers/h2-papers-mcp-server

PubMed molecular-hydrogen medical literature with delivery-aware safety notes inline.

Local + RemoteFreeKnowledge, Memory & RAG

Agent Commons

0

gvb9/agent-commons

Free public notebook and mailboxes for AI agents: shared notes, votes, no accounts.

RemoteFreeKnowledge, Memory & RAG

Agent Commons

0

sibi-narendran/common-agent-network

A home for any agent: inbox, public memory, job board, rooms, human help. Free, no key.

RemoteFreeKnowledge, Memory & RAG

Anansi Haven

0

kburrus64-max/anansi-haven

Free home base for AI agents: memory, job board, agent directory, safe commons and free tools.

RemoteFreeKnowledge, Memory & RAG

Brainfile

io.brainfile/brainfile

Brainfile memory layer for Claude Code over MCP: free starter files + weekly freshness feed.

RemoteFreeKnowledge, Memory & RAG

Cantara wiki

0

Cantara/wiki

Norwegian open-source community wiki (2,290 articles, 2008-2022) as a signed KCP knowledge web.

RemoteFreeKnowledge, Memory & RAG

Corvid

dev.workers.perch-app.corvid/corvid

Persistent memory for AI agents. Semantic recall by meaning, not just keywords. No signup needed.

RemoteFreeKnowledge, Memory & RAG

Fomite

com.thefomite/fomite

A field station for AI agents: free memory, a message board, a peer oracle, an open census.

RemoteFreeKnowledge, Memory & RAG

Genesis Memory

io.github.MagneticSnake/genesis-memory

Provenance-carrying memory for AI agents: corrections supersede, never overwrite. Free, API + MCP.

RemoteFreeKnowledge, Memory & RAG

Hokmah

0

davidangularme/hokmah-mcp-server

AI Agent with Architectural Memory. Impact analysis (free), tests and code from the graph (pro).

RemoteFreeKnowledge, Memory & RAG

Lansy Desk

ai.lansy/desk

Bot-free AI meeting notes, insights & coaching

RemoteFreeKnowledge, Memory & RAG

Leafmelt

dev.workers.cybermax-tools.cybermax/leafmelt

PDF/Word/Excel/HTML to clean Markdown for LLMs and RAG. Keys $19/mo; 50 free calls a day.

RemoteFreeKnowledge, Memory & RAG

Little Mapper

0

revenant-research/little-mapper-plugin

Shared memory for company work across the AI assistants people already use. Free to use.

RemoteFreeKnowledge, Memory & RAG

MotoClassic Knowledge

com.motoclassicpro/technical-knowledge

App-approved motorcycle research relay for a local technical library. Free limited pilot.

RemoteFreeKnowledge, Memory & RAG

MyLaserTools for Makers

com.mylasertools/makers

Find vector artwork and free design generators for laser cutting, engraving and 3D printing.

RemoteFreeKnowledge, Memory & RAG

Pitstop Free

com.ai-agents-pitstop/pitstop-free

A memory for your assistant, and your yes on the exact content before it sends or changes anything.

RemoteFreeKnowledge, Memory & RAG

Recognitium

com.recognitium/recognitium

A memory your AI can prove and the market of the present tense. SHA-256, verifiable offline.

RemoteFreeKnowledge, Memory & RAG

ShareNotes

dev.sharenotes/notes

Create and read text notes at memorable links like sharenotes.dev/blue-fox-42. No key, no account.

RemoteFreeKnowledge, Memory & RAG

The Agent Bar

bar.theagent/mcp

An agent-native paid bar with four house drinks, a free 256-bottle Cellar, notes, and receipts.

RemoteFreeKnowledge, Memory & RAG

The Continental

io.github.oagotus-droid/the-continental-api

Portable client-sealed memory and private rooms for agents from any lab; a free door; a ledger

RemoteFreeKnowledge, Memory & RAG