Threat Model Studio · Free tool
Industry-standard threat models in minutes.
Describe your app, API or AI agent, or paste Terraform / Docker Compose IaC. Get a data-flow diagram, STRIDE-per-element and CSA MAESTRO 7-layer AI threat registers rated with OWASP Risk Rating Methodology, and mitigations mapped to ASVS 5.0 and NIST 800-53.
- Runs entirely in your browser
- Terraform & Compose IaC import
- Apps, APIs & SaaS
- LLM apps, RAG, agents & MCP
- PDF, CSV & JSON export
What are you building?
Name the system and pick the closest match. You can fine-tune components next.
Methodology
Built on the standards security teams already use
Four Question Framework
Shostack / OWASP Threat Modeling Manifesto structure: what are we working on, what can go wrong, what will we do, did we do a good job.
CSA MAESTRO Framework
Multi-Agent Environment, Security, Threat, Risk, and Outcome: the Cloud Security Alliance standard decomposing agentic AI systems into 7 layers from Foundation Models to the Multi-Agent Ecosystem.
Infrastructure as Code (IaC)
Import Terraform (.tf), Docker Compose or Kubernetes manifests. Auto-maps cloud resources to DFD components, identifies trust boundaries, and audits for static misconfigurations client-side.
Data-flow diagram
External entities, processes, data stores, numbered data flows and trust boundaries in conventional DFD notation.
STRIDE-per-element
Each element is analysed only for the STRIDE categories that apply to its type, with a coverage matrix.
OWASP Risk Rating
Every threat rated by likelihood × impact on the standard 3 × 3 matrix.
Threat grammar
Statements written as source, prerequisites, action, impact and affected assets.
Mapped references
OWASP Top 10, API, LLM (2025), Agentic (2026) and Mobile lists, plus CWE, CAPEC, MITRE ATT&CK and ATLAS, with ASVS 5.0 and NIST SP 800-53 Rev 5 controls.