Everything you need to model complex systems

hub

Visual Modeling

Stocks, flows, converters, and connectors with drag-and-drop precision. Auto-layout and polarity analysis built in.

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Advanced Simulation

Euler and RK4 integration. Sensitivity analysis, Monte Carlo, and scenario comparison — all in the browser.

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AI Intelligence

Chat with AI about your model. Upload documents and let AI extract system dynamics structures automatically.

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Cloud & Collaborate

Save models to the cloud. Share with teams via role-based access (owner, editor, viewer). Audit trails, comments, and public links built in.

database

20+ Data Sources

World Bank, OECD, ECB, IMF, Eurostat, WHO, PubMed, and 15 EU government portals. Bind real data directly to your model variables.

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Sovereign by Design

Your data stays yours. BYOK encryption, EU-hosted infrastructure, GDPR-compliant by architecture.

Built for decision-makers

Government

Policy & Governance

Model regulatory impact, compliance costs, and governance maturity across digital ecosystems.

Enterprise

Business Strategy

Simulate market entry, pricing strategies, and competitive dynamics before committing resources.

Academia

Research & Education

Teach system thinking with interactive models. Publish simulations as shareable artifacts.

API & Integrations

REST API

Deploy your models as REST API endpoints. Auto-generated documentation, API key management, and 1000 calls/month included in Creator tier.

View API Docs →

ToolUniverse & MCP

Federated search across PubMed, WHO, OpenAlex, and more. Native integrations with 4 EU government MCP servers (France, Spain, Italy, Netherlands) for direct access to public datasets.

Explore ToolUniverse →

20+ External Data Sources

Pre-integrated: World Bank, OECD, ECB, IMF, Eurostat, WHO, CoinGecko, CVE/NVD, Open-Meteo, Disease.sh, and 15 EU government open data portals via universal CKAN adapter. BYOK sources: FRED, EIA, ACLED — bring your own API key.

Export & Interoperability

Export models as JSON, CSV, PNG, SVG, or PDF. Import/export XMILE format for compatibility with Vensim, Stella, and iThink.

Choose your architecture

Scalable modeling systems — from local simulations to distributed enterprise infrastructure.

info All paid tiers include a 30-day free trial, no payment required.

Core Layer

Free

€0

check_circle Full modeling + simulation (Euler/RK4)
check_circle Advanced analysis (sensitivity, Monte Carlo)
check_circle Export CSV/PNG/SVG/JSON locally
check_circle 8 templates included
check_circle Save/Load local only (no cloud)

Continue Free

Standard

€3.99 / month

Includes everything in Free, plus:

add_circle AI Chat (Mistral) - pay as you go tokens
add_circle Cloud Save & Load (10 MB, 5 models)
add_circle Model Sharing (roles, comments, audit trail)
add_circle Export PDF & Chat History
add_circle 20+ Data Sources (World Bank, OECD, ECB, IMF, Eurostat, EU Gov Portals)
add_circle BYOK Data Sources (FRED, EIA, ACLED)
add_circle Agent runtime defaults to Mistral

Start Trial

Popular

Pro Node

Premium

€7.49 / month

Includes everything in Standard, plus:

bolt Document Intelligence (RAG)
add_circle Upload PDF → Model Extraction
add_circle Knowledge Base & Graph Explorer
add_circle 100 MB Cloud Storage (docs + models)
add_circle AI American Models (OpenAI, Anthropic, Google) - pay as you go tokens
add_circle Agent provider & model selection (OpenAI, Anthropic, Google, Mistral)

Choose Premium

Developer

Creator

€14.99 / month

Includes everything in Premium, plus:

add_circle BYOM (Bring Your Own Model)
add_circle API Deploy: €10/month per model
add_circle 200 MB Cloud Storage
add_circle Agent provider & model selection (Premium+)

Choose Creator

30-Day Trial Policy

All Standard, Premium, and Creator plans start with a free 30-day trial. No payment details required for activation. After 30 days, access to paid features is locked until a subscription is confirmed.

Security & Sovereignty

Moltke Architect prioritizes user control. Regardless of the tier chosen, your modeling data can be stored locally. In the cloud, we use industry-standard encryption protocols to ensure the integrity of your architectures.