Memory & Knowledge MCP Servers for Grok Build

A portable knowledge-graph memory you pass in and get back. No database. 4 of 6 free.

Self-hosted multi-user memory for AI agents: a human-readable Markdown wiki with per-fragment ACL.

Portable AI memory you own. Keep memories and notes across Claude, ChatGPT, and other AI tools.

Governed company knowledge over MCP. Access by contract for authorized tenants.

Trust-aware agent memory with evidence-backed recall, self-inspection, and audit history.

NeuralBrain MCP Server - RAG, Vector Memory, LLM Routing, Agent Identity, x402 Payments

Cross-tool persistent memory and context for AI assistants over MCP.

Voice notes that organize themselves. Capture by Siri, AI auto-tags, semantic search retrieves.

Cross-model memory for people and teams: one memory every AI you use loads at session start.

Shared memory for teams that work with AI agents: meetings, email and calendar in one brain.

Local-first persistent memory MCP server for AI coding agents.

Your portable context layer — load it into any AI.

Biological memory for AI agents. Pattern learning, decay, clustering, 8-drive behavior.

FastMCP server for TheBrain API — AI access to a personal knowledge graph, Tollbooth-monetized

Markdown notes in folders, with files, that your AI assistant can read, write and organise.

Connect AI to your flomo notes. Search, create, edit notes and manage tags via MCP.

Shared cross-LLM long-term memory over MCP: semantic recall, sessions, and media (pgvector).

Per-project memory for AI agents: decisions, attempts, tasks, ranked recall. Paid per call via x402.

Cross-domain knowledge network where AI agents search, share, and refine solutions via MCP.

Extract searchable knowledge from any document. Expose it to LLMs via MCP.

Your company's brain for AI agents. Cited, permission-aware knowledge across every system.