Memory & Knowledge MCP Servers for Claude Desktop

Save, search, read, tag, and organize your bookmarks from AI assistants with OAuth sign-in.

Local knowledge graph memory for agents. SHACL rules refuse bad facts; SPARQL and time travel.

Persistent memory for AI tools. Local-first knowledge graph with hybrid search.

Shared work memory for Claude Code, Codex, Cursor and chat, scoped to each repository.

SigB (Signal Bureau): maintained, source-traced record of entities and events in your named domain.

Neuro-symbolic memory for LLMs (POC)

Read public sources and manage a smry library, feeds, notes, highlights, files, and page monitors.

Read-only search of your Sortio knowledge graph (files and entities) for Claude and ChatGPT.

Read-only access to your SpeakPen voice notes: search, read transcripts, list recent ideas.

Your local project library: hand any AI a project pack, search it, and write findings back.

End-to-end agent-managed company brain. Docs, diagrams, plans, databases, agents, Knowledge Graph.

Search, read, and organize your saves from X, Reddit, TikTok, Instagram, and more.

Durable identity and memory for AI agents, anchored on the Emercoin blockchain.

An AI-native context platform that accumulates an organization's judgment. Built by South Gate Inc.

Bi-temporal AI memory. 56 tools, knowledge graph, semantic search. EU-hosted, free tier.

Write pages into your notes vault, search them, and publish one as a shareable link.

MCP-native Trust Infrastructure for AI Agents. Persistent encrypted memory with Trust Quotient.

Persistent, structured project memory for AI coding agents, stored locally in SQLite.

Persistent memory layer for AI tools. Save and recall notes across Claude and other MCP clients.

Team experience database service based on MCP protocol

The second brain your AI agents share. It builds itself from your work and keeps itself current.