3dstreet MCP server

What it does

An MCP relay that connects Claude Desktop or Claude Code to a 3DStreet scene running in your browser, allowing you to control urban design and street scene editing through Claude. This is a fallback for MCP clients without native WebMCP support.

• Ask Claude to modify a 3DStreet scene such as adding a bike lane or changing the environment preset, with Claude issuing tool calls to the browser tab.
• Query scene data from Claude, such as asking what entities exist in the current scene or getting information about selected objects.
• Iterate on street and urban design by describing changes in natural language while Claude handles the underlying scene mutations through the relay.

Tools this server exposes

Tool	Does
getScene	Retrieve the full scene data from the current 3DStreet tab.
getEntity	Get details about a specific entity in the scene.
getSelectedEntity	Get details about the currently selected entity.
getManagedStreet	Retrieve information about the managed street object.
listMixins	List available mixins in the scene.
getSessionInfo	Get information about the current session.
selectEntity	Select an entity in the scene.
focusCamera	Move the camera focus to a specific location or entity.
entityCreate	Create a new entity in the scene.
entityUpdate	Update properties of an existing entity.
entityRemove	Delete an entity from the scene.
entityClone	Duplicate an entity in the scene.
entityReparent	Change the parent of an entity.
componentAdd	Add a component to an entity.
componentRemove	Remove a component from an entity.
segmentAdd	Add a segment to the scene.
segmentUpdate	Update properties of a segment.
segmentRemove	Delete a segment from the scene.
replaceManagedStreet	Replace the managed street with a different configuration.
undo	Undo the last action in the scene.
redo	Redo the last undone action in the scene.

Before you enable it

An MCP server runs with whatever access you give it. Start with a development account rather than production, and check which tools the server exposes before you let an agent call them unattended.