What makes Merkraum different
Fixed Schema
8 node types, 14 relationship types. No open-vocabulary extraction — the system categorizes automatically. Quality over data noise.
Beliefs & Contradictions
Knowledge with confidence scores. Merkraum detects when new knowledge contradicts existing knowledge — and flags it, instead of silently overwriting.
Dreaming
Periodic consolidation: Merkraum reviews stored knowledge, finds patterns, strengthens connections. Your AI learns even when you're not working.
How it works — in 3 steps
Create an account
Sign up at merkraum.de. No API key needed, no infrastructure, no DevOps knowledge.
Connect via MCP
Add the MCP configuration to Claude Desktop or claude.ai. One JSON block, done.
Build knowledge
Your AI instantly has access to 11 knowledge tools: store, search, connect, manage beliefs, traverse the graph. The more you use it, the better your memory gets.
{
"mcpServers": {
"merkraum": {
"type": "streamable-http",
"url": "https://mcp.merkraum.de/mcp"
}
}
}
Why not just use ChatGPT Memory?
| ChatGPT / Claude Memory | Mem0 | Merkraum | |
|---|---|---|---|
| Structured Graph | No — flat list | Partial | Yes — fixed schema |
| Beliefs & Confidence | No | No | Yes |
| Contradiction Detection | No | No | Yes |
| Dreaming / Consolidation | No | No | Yes |
| EU Hosting / GDPR | US servers | US servers | Frankfurt (eu-central-1) |
| Data Export | No export | API | Full export, anytime |
| Vendor Lock-in | ChatGPT / Claude only | API-bound | MCP standard — open |
Security & Privacy — from day one
EU-hosted
AWS Frankfurt (eu-central-1). Your data never leaves the EU.
Encrypted
TLS everywhere. Encryption at rest. OAuth 2.0 + PKCE authentication.
Audit Trail
Every operation logged: who, what, when. Fully traceable for your compliance officer.
Tenant Isolation
Your knowledge is fully isolated. No other user can see your data.
Right to Deletion
GDPR Art. 17: Complete data deletion at the push of a button. No fine print.
MCP Standard
Open protocol. Works with Claude and any MCP-compatible client.
The story behind it
Merkraum didn't come from a market analysis — it came from a real problem: I built an autonomous AI agent based on Stafford Beer's cybernetics, and it forgot everything. Every session a fresh start. So I built it a memory: first a vector database, then a Knowledge Graph, then Beliefs, then Dreaming.
After more than 1,000 autonomous cycles, this system works. It's not a prototype — it runs in production, with over 3,600 knowledge nodes and real contradiction detections. Merkraum makes this technology accessible to everyone.
“The purpose of a system is what it does — not what it claims to do.”
Stafford Beer