Draw your architecture from code.
The SchemaFlow MCP lets Claude Code, Codex, or any MCP-compatible assistant read a repository and produce a system-design diagram — components, connections, and plain-English descriptions, laid out and ready to edit.
Install as a Claude Code plugin
One command adds the marketplace, then one installs the plugin. The MCP server is bundled in — no clone, no npm install.
claude plugin marketplace add tom-pettit/schemaflow
Then, inside Claude Code:
/plugin install schemaflow-mcp@schemaflow
That enables the schemaflow MCP — then just ask your assistant to draw a diagram (below).
Generate a diagram
Open your repo in the assistant and ask:
"Read this repo and create a SchemaFlow diagram of the architecture."
It reads the code, describes the system as components and connections, and the MCP lays it out and returns an import link.
Open & save it
Click the link to open the diagram on the canvas — or paste it (or a .json file) into Import in the app. Sign in to save it to your account, where it's encrypted on your device before it's stored.
Reference
Tools
create_system_diagram — { name, components[], links[] } → an import link. Layout is automatic.list_component_types — the available shape types.Configuration
SCHEMAFLOW_URL — override the base URL (defaults to https://schemaflow.dev) if you self-host.
Component type is one of: service, process, gateway, balancer, database, cache, storage, queue, cloud, client, note. The model supplies the logical graph; SchemaFlow handles the layout and routing.