Memory & Knowledge MCP Servers for Grok Build

Search an Obsidian vault by tag, term and wikilink graph. Read-only, deterministic, no embeddings.

Exam-scored knowledge brains your agent searches over MCP, plus a public list of their gaps.

Persistent memory for AI agents with OAuth-backed hosted MCP access.

Search, read, and write your Apple Notes from ChatGPT/Claude via a local Mac agent + MCP relay.

Versioned agent memory in your own Postgres: portable context, permissioned, audit trail.

Permanent on-chain memory for AI agents on Lightchain via a one-time unlock.

Lightweight persistent memory for AI agents. Hybrid search. 16 tools. One SQLite file.

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

Lossless archive and search for AI agent sessions across clients, exposed to agents over MCP.

Rarefied Earth Groundwork MCP: company memory for AI agents. 14-day full-access trial, no card.

Long-term memory for AI agents: learns what is true about each person and answers with sources.

Search your local Claude Code archive. For continuous capture, use the Rootz Archive plugin.

Search your saved YouTube, Reels and TikTok videos by what was said and jump to the moment.

Free save layer for AI apps: save links to a person's SaveHQ board and search it, with permission.

Knowledge accumulation for AI coding agents. Records decisions, problems, and insights as context.

Hosted MCP for source-backed project context, memory, code impact, and agent workflow continuity.

AI research library. Save, organise and reuse notes and webpages as clean markdown context.

Cross-check a factual claim against a verified knowledge graph before you assert it. Never guesses.

Durable, shareable and governed project memory with smart triage and explicit project composition.

A wiki about your life that writes itself. Save from any AI chat, recall it in the next.

Shared semantic graph for AI reviews, classification and structured memory across AI assistants.