1,603 published MCP servers in this category · page 1 of 27 · all categories
Knowledge and memory MCP integrations store or retrieve supported notes, graph records or other retained context. Persistence means a service can preserve data between sessions; it does not guarantee that an assistant will retrieve the right record.
Check how a server identifies records, links related facts and handles updates or deletion. Distinguish a source note from an assistant-generated summary. Keep provenance and dates where later decisions depend on them.
Save a small record, retrieve it in a new session and update a specific field. Then confirm that the intended version is returned. Include contradictory or outdated notes in an evaluation so you can see whether the workflow preserves source context instead of repeating an old conclusion.
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Store entities, relations and observations in a local knowledge graph with the reference Memory MCP server.
A structured scratchpad for hard problems — stepwise reasoning with revisions, branches and visible logic.
Symbol-level code navigation, refactoring and memory for coding agents — the IDE brain your assistant has been missing.
Stop letting your assistant hallucinate n8n node parameters — this server hands it the real schemas, templates and validation.
Chat with your second brain — search, read and write vault notes through the Local REST API.
Enables AI assistants to securely interact with Azure DevOps through a standardized protocol.
Connects AI models to an Obsidian knowledge base for direct access and manipulation of notes and folders.
Manage Proxmox hypervisors through a Model Context Protocol server, providing a clean interface for nodes, VMs, and containers.
Enables semantic search and retrieval of documentation using a vector database, allowing users to add and query documentation from URLs or local
Manages memory banks, enabling AI assistants to store and retrieve information across sessions for maintaining context.
Retrieves package documentation from multiple language ecosystems for use with LLMs.
Enables web searches using DuckDuckGo and integrates with Model Context Protocol (MCP) for advanced result exploration.
Enables semantic analysis of chat conversations through vector embeddings and knowledge graphs.
Provides an MCP server to manage, build, check, and search Rust documentation locally.
Searches and retrieves images from Wikipedia Commons, ensuring adherence to Creative Commons licenses.
Enables saving, searching, and formatting memories with semantic understanding directly from Cline and Claude Desktop using a Memory Box instance.
Connects AI agents to Apache Jena for SPARQL query execution and RDF data manipulation.
Enables Claude, and other Model Context Protocol (MCP) clients, to manage and access memories stored in a simple text file for enhanced context
Enables semantic search in Qdrant vector databases using OpenAI embeddings.
Provides a persistent memory solution using a local knowledge graph, allowing applications to remember information across interactions.
Downloads websites and their assets for use with Retrieval-Augmented Generation (RAG) systems.
Provides persistent memory storage for Infrastructure-as-Code (IaC) components, focusing on version tracking and relationship mapping.
Retrieves MCP servers using semantic search capabilities.
Enables AI assistants to access and update personalized context data, creating persistent memory between sessions.
Integrates ClickUp with the Model Context Protocol to enable note management and summarization.
Simulate code reviews from expert personas using AI and a knowledge graph.
Provides an SSE service for knowledge graph management, based on the MCP protocol.
Enables semantic search and retrieval over Apple Notes within the Cursor IDE.
Enables programmatic access to the IACR Cryptology ePrint Archive for efficient retrieval of cryptographic research papers.
Enhances Claude AI's Infrastructure-as-Code (IaC) capabilities by providing persistent memory storage with version tracking and relationship mapping.
Provides a Model Context Protocol server implementation for memory stream functionality with Mem0 integration.
Manages model context protocol operations with efficient memory usage, designed for integration with Claude Desktop.
Manages contextual boundaries for AI agents based on defined roles.
Manage educational context based on courses, assignments, and exams using a knowledge graph.
Long-term memory for AI agents that actually works.
Persistent memory layer for AI agents. Sub-100ms recall, semantic search, knowledge graphs.
Dependency intelligence for AI agents. CVE scanning, health checks, upgrade planning.
Self-evolving memory system for AI agents
A comprehensive Model Context Protocol (MCP) server suite for Red Hat's automation and infrastructure ecosystem, enabling AI assistants to interact
Aarna MCP server — 138 tools for AI agent integration. Hosted by Junct.
Hosted at [aave.mcp.junct.dev/mcp](https://aave.mcp.junct.dev/mcp). Free to use. No auth. No API key required.
MCP server with tools to search, fetch, analyze, and report on scientific papers and datasets.
Scholarly search: OpenAlex, Crossref, arXiv, OpenCitations and PubMed in one endpoint.
Academic paper search, scientific literature, citation analysis, arXiv & semantic related-work.
Scholarly search: OpenAlex, Crossref, arXiv, OpenCitations and PubMed in one endpoint.
ArXiv preprints + Google Scholar papers, with citation counts in one query.
Search arXiv, Google Scholar, and Wikipedia for academic papers and knowledge
Academic research search across PubMed and arXiv
Persistent memory for AI agents. Semantic search, memory graph, W3C DID identity.
Semantic search through Dickens' A Christmas Carol by meaning, theme, or character.
A Model Context Protocol (MCP) server that exposes the [APLCart](https://aplcart.info) idiom collection with semantic search capabilities. APLCart is
Read and edit your Acorn Reply knowledge base from any MCP client.
A bridge server that connects **Agent Communication Protocol (ACP)** agents with **Model Context Protocol (MCP)** clients, enabling seamless
Verifiable agent memory with signed ledger receipts — verify every write offline.
Search and download academic papers from arXiv, PubMed, bioRxiv, medRxiv, Google Scholar, Semantic…
Persistent memory tools for Claude Desktop. Search your vault or Obsidian notes mid-conversation.
Persistent memory for Claude via weighted, interconnected knowledge nodes.
Adaptive memory system for AI applications. Multi-strategy retrieval, cognitive scoring, knowledge graph, and self-improving ML. Connects via MCP or
A Model Context Protocol server
Elite Obsidian RAG System - Second Brain with Claude Code Integration