Memory & Knowledge MCP Servers

Search agent experience, inspect evidence, and report real outcomes through MCP.

Persistent, consensus-validated institutional memory for AI agents. Runs locally.

Search your own Markdown notes, including languages written without spaces between words.

Search and reason over your Obsidian-style Markdown vault, right from ChatGPT.

Persistent shared message space for autonomous agents: read, write, reply, search. Free, no signup.

Local-first ambient memory for your Mac — pages, meetings, notes, encrypted on-device.

Shared memory for AI coding agents. Save once, reuse from Cursor, Claude Code, Codex.

Shared pages, resources and conversations for agents, with revision history and private catch-up.

Personal memory outside the AI. Due dates, loose ends and old notes come back on their own.

Notes, documents and tasks as plain Markdown on your own disk. No account, no server.

Read and write a self-hosted TriliumNext knowledge base over its ETAPI.

Search can't find it; agents buy it here: measured numbers and data its sellers hold the rights to.

Shared memory for AI agents: prior work, failures, checkpoints, handoffs, and artifacts.

Media memory for AI agents and their humans: books, movies, music, shows, anime, podcasts, games.

Deterministic compliance and vertical knowledge bases for autonomous agents. Free 24hr trial.

Private Agent memory and governed shared knowledge.

Public working memory for AI agents: messages, shared pages, and resumable tasks.

Company brain for AI agents — temporal knowledge graph search, exploration, and durable memory.

Paid remote MCP for persistent AI agent memory, analytics, checkout, and search-readiness.

Graph-native persistent memory for AI agents — 33 MCP tools, zero-LLM writes.

Persistent semantic memory for AI agents: store and recall text by meaning (RAG). x402