Memory & Knowledge MCP Servers for Perplexity

Shared, serverless, conflict-free memory for AI agents — a multi-machine drop-in for the MCP memory knowledge graph.

A Model Context Protocol (MCP) server that provides memory storage and retrieval capabilities using Mem0

Persistent memory MCP server for AI coding assistants. Chinese-first and fully local.

MCP server for a project's context (AGENTS.md), memory, and identity — base or drop-in extension.

A Model Context Protocol (MCP) implementation for the MemOS API service. This package provides a

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

MeMesh — Local memory for Claude Code and MCP coding agents. One SQLite file, zero cloud required.

Graph context, semantic search, guarded edits, and reviewable Git for local Obsidian vaults.

MCP server for XMind

Evidence-grounded agent memory with mandatory provenance, on local SQLite or Cloudflare D1

Long-term memory for agentic tasks. It tells you when it doesn't know.

NEXO runtime core for NEXO Desktop. Provides local memory, Deep Sleep, Evolution support-ticket mode, skills, watchdog, and MCP tooling for

MIND MCP Server — 28 tools. The most complete AI memory layer with the Focus → Project → Outcome → Task hierarchy (mind_focuses + extended

Free-to-start portable memory for AI agents: encrypted, shareable, provably erased. Join SAIHM.

Durable agentic memory, encrypted at rest. Fully offline: no network, no API key, no cloud.

Local-first memory for AI coding agents — Markdown + SQLite FTS5, shared across editors via MCP.

Local-first AI memory with knowledge graphs and hybrid search. 17+ AI tools via MCP. Free.

Offline persistent memory for AI coding agents — 35 tools, 80% fewer calls, no LLM

MCP server for Memanto - persistent semantic memory for any MCP-compatible agent

Durable agent memory over a markdown vault: bitemporal facts, timelines, hybrid graph search.

Universal AI Memory - Sync context across Claude, VsCode, Cursor, Continue, Windsurf, Zed & more