Knowledge & Memory MCP Servers

890 reviewed MCP servers in this category · page 11 of 15 · all categories

Knowledge and memory MCP servers give assistants a persistent brain: knowledge graphs that survive between sessions, structured reasoning scratchpads, and connectors into your personal notes. They fix the most annoying thing about LLMs — walking into every conversation with total amnesia.

Nautilus Compass

Drift-aware cross-agent memory · MCP/A2A · LongMemEval-S 56.6% · 1/15 Zep cost

Knowledge & MemoryRemotePython

Neo4j

Neo4j graph database server (schema + read/write-cypher) and separate graph database backed memory

Databases

NeoCoder Neo4j Ai Workflow

An MCP server implementation that enables AI assistants like Claude to use a Neo4j knowledge graph as their primary, dynamic "instruction manual" and

DatabasesPython

Netskope NPA

# Netskope NPA MCP Server A comprehensive Model Context Protocol (MCP) server for managing Netskope Private Access (NPA) infrastructure through

Cloud & DevOpsRemoteTypeScript

Neural Memory

<strong>Website</strong> · Quickstart · MCP Tools · Pro · Changelog

Knowledge & MemoryPython

Neurodivergent

Persistent knowledge graph MCP server for neurodivergent thinking. BM25 search, no cloud LLM.

Knowledge & MemoryTypeScript

Neuromcp

Semantic memory for AI agents with hybrid search, knowledge graph, and consolidation

Knowledge & Memory

Nexs MCP

NEXS MCP Server - Model Context Protocol server for portfolio management with NPM distribution

Knowledge & MemoryGo

Nexus

Persistent semantic memory for AI agents with knowledge graphs and Intelligence Packs.

Knowledge & Memory

Nexus MCP Claude Desktop Server

Lightweight bridge between VSCode and Claude Desktop MCP

File Systems & Storage

Nhtsa

Vehicle safety data from NHTSA — recalls, complaints, crash ratings, investigations, VIN decoding.

File Systems & StorageRemote

NMEMORY

Hermetic local memory for coding agents: provenance-mandatory capture, honest recall, zero sockets.

Knowledge & MemoryPython

Noaa

Find NOAA tide stations and NDBC buoys, fetch tide predictions, currents, and live conditions.

CommunicationRemote

Notemd MCP

A standalone backend server for the Notemd Obsidian plugin, providing AI-powered text processing and knowledge management.

Knowledge & MemoryPython

Nova Memory

Zero-config AI project memory with live file watching and MCP integration

Knowledge & MemoryTypeScript

Npi

Look up US healthcare providers in the NPPES NPI registry and resolve NUCC specialty codes.

File Systems & StorageRemote

Npi Registry

A Model Context Protocol (MCP) server for searching the National Provider Identifier (NPI) registry. This server provides tools to search and

Knowledge & MemoryPython

Nucleus MCP

Every AI coding session starts by re-explaining context the last session already knew. `.brain` is a folder in your repo that Claude Code, Cursor

Knowledge & MemoryPython

NVIDIA Elements

NVIDIA Elements UI design system and agent tools for AI/ML, robotics, and autonomous vehicles.

Developer ToolsGo

Obsidian

Give AI agents access to your Obsidian vault via local files or Self-hosted LiveSync.

Productivity & Project ManagementRemoteTypeScript

OCI Documentation

Model Context Protocol (MCP) server for OCI Documentation

Knowledge & MemoryPython

Octobrain

Persistent memory for AI assistants with semantic search and knowledge graph relationships.

Knowledge & Memory

Ogham MCP

AI coding agents forget everything between sessions. Switch from Claude Code to Cursor to Kiro to OpenCode and the context is gone -- decisions

Developer ToolsRemotePython

Omega Memory

AI coding agents are stateless. Every new session starts from zero. The "solutions" either lock you into one model provider or send your codebase

Knowledge & MemoryPython

Omni

An MCP server for natural language inference

Knowledge & Memory

Omni

An MCP server for automatic license plate recognition

Cloud & DevOpsPython

OmniClip RAG

Read-only local-first MCP server for private Markdown, PDF, and Tika-backed search on Windows.

Knowledge & MemoryPython

Onetool MCP

<strong>🧿 One MCP for developers - no tool tax, no context rot. 250+ tools your agent calls as Python code: search, docs, files, databases

Knowledge & MemoryPython

Onplana

Open-source MCP server template + Onplana MCP client SDK. Workspace root; do not publish.

Developer ToolsRemoteTypeScript

Onvif

Client to ONVIF NVT devices Profile S: cameras

Knowledge & MemoryTypeScript

Openai

MCP server for OpenAI Agents SDK documentation

AI & ML ServicesPython

OpenClaw Intel MCP

49 AI tools across 9 MCP servers. Enterprise AGI Runtime (1,054 tests). Free tier. ☕ buymeacoffee.com/yesinyagami

Knowledge & Memory

Opencode

MCP server for opencode documentation, generated by doc2mcp.

Knowledge & MemoryRemoteTypeScript

Open Context

A high-performance MCP (Model Context Protocol) server that provides up-to-date documentation for programming languages, frameworks, and tools. Built

Knowledge & MemoryPython

Openexp

<strong>How did this happen? — a hippocampus for AI agents.</strong>

Knowledge & MemoryPython

Openeye

Procedure verification for AR/XR with memory, visual sessions, and DPO trajectory export.

Productivity & Project ManagementRemotePython

Opengrok

MCP server bridging OpenGrok search engine with AI for instant context across massive codebases

Developer ToolsPython

OpenInvest

Investment runtime for AI agents — LLM investment committee, portfolio ledger, decision accounting

Knowledge & MemoryRemotePython

OpenMemBrain

OpenMemBrain is the intelligent membrane for AI coding memory. It autonomously reads and learns from your coding sessions — you never have to tell it

Knowledge & MemoryRemoteGo

Openmemory

> **real long-term memory for ai agents. not rag. not a vector db. self-hosted.**

AI & ML ServicesRemotePython

OpenOCD Debugger

Debug microcontrollers from Claude via OpenOCD: flash, breakpoints, memory and registers by name.

Knowledge & MemoryPython

Opentofu

OpenTofu MCP Server for accessing the OpenTofu Registry

Knowledge & MemoryRemote

Opentrons MCP

MCP server for Opentrons HTTP API documentation and endpoint discovery

Knowledge & MemoryPython

Opet MCP

A Model Context Protocol (MCP) server that provides access to OPET fuel prices data through Claude AI.

Knowledge & MemoryPython

Orbit MCP

A comprehensive Model Context Protocol (MCP) server for satellite orbital mechanics calculations with natural language processing capabilities.

Knowledge & MemoryPython

Orderly

MCP Server for Orderly Network - Documentation and SDK patterns

Knowledge & MemoryRemote

OrgX MCP

Agent orchestration + org memory via MCP. Manage initiatives and decisions from any client.

Knowledge & MemoryRemote

Otp MCP

Model Context Protocol (MCP) server that provides OTP (One-Time Password) generation

Knowledge & Memory

Packmind

A second brain for Claude Code: project memory, estimated token & cost activity, semantic recall, and active guardrails.

Knowledge & MemoryGo

Pampa

PAMPA – Protocol for Augmented Memory of Project Artifacts (MCP compatible)

File Systems & StoragePython

ParticlePhysics

A Model Context Protocol server that lets Claude Desktop, IDEs, and other MCP clients look up particle properties and decay modes.

Knowledge & MemoryPython

Pdf Splitter MCP

MCP server for random access to PDF contents

File Systems & Storage

Pensyve

Universal memory runtime for AI agents — episodic, semantic, and procedural memory.

Knowledge & MemoryRemotePython

Perplexity

A Model Context Protocol (MCP) server for research and documentation assistance using Perplexity AI. Won 1st @ Cline Hackathon

Knowledge & Memory

Perplexity MCP Zerver

MCP web search using perplexity without any API KEYS

Search & Web ScrapingTypeScript

Perseus: And Live Context Engine

Live context MCP server: resolves git, services, and tests into agent context. Local-first, MIT.

Knowledge & MemoryRemotePython

Perseus Vault (Formerly Mimir/Mneme), Persistent Memory Engine For AI Agents

Local-first MCP memory server: SQLite, FTS5 and vector search, AES-256-GCM. 49 tools, no cloud.

Knowledge & MemoryRemotePython

Pi

Pi extension for Cognee AI memory — supports both direct SDK and MCP bridge modes. Remember, recall, forget, and manage knowledge graphs from your

Knowledge & MemoryRemote

Pieces

Turn your Pieces Long-Term Memory into an AGENTS.md your coding agents can read.

Knowledge & MemoryGo

Piia

AI identity layer — syncs who you are across Claude Code, Codex, Cursor and any MCP tool.

Knowledge & MemoryPython