diff --git a/packages/shared/cadmium-api.ts b/packages/shared/cadmium-api.ts
new file mode 100644
index 00000000..9ea7a4d3
--- /dev/null
+++ b/packages/shared/cadmium-api.ts
@@ -0,0 +1,51 @@
+import { Direction, IDType, Message, MessageResult, Mode, Plane, PlaneDescription, ProjectRename } from "cadmium";
+import { sendWasmMessage } from "./projectUtils";
+
+export function projectRename(new_name: string): MessageResult {
+	const message: Message = { ProjectRename: { new_name } }
+	return sendWasmMessage(message)
+}
+export function workbenchRename(workbench_id: IDType, new_name: string): MessageResult {
+	const message: Message = { WorkbenchRename: { id: workbench_id, inner: { new_name } } }
+	return sendWasmMessage(message)
+}
+export function workbenchPointAdd(workbench_id: IDType, x: number, y: number, z: number): MessageResult {
+	const message: Message = { WorkbenchPointAdd: { id: workbench_id, inner: { x, y, z } } }
+	return sendWasmMessage(message)
+}
+export function workbenchPlaneAdd(workbench_id: IDType, plane: Plane, width: number, height: number): MessageResult {
+	const message: Message = { WorkbenchPlaneAdd: { id: workbench_id, inner: { plane, width, height } } }
+	return sendWasmMessage(message)
+}
+export function workbenchSketchAdd(workbench_id: IDType, plane_description: PlaneDescription): MessageResult {
+	const message: Message = { WorkbenchSketchAdd: { id: workbench_id, inner: { plane_description } } }
+	return sendWasmMessage(message)
+}
+export function workbenchPointUpdate(workbench_id: IDType, point_id: IDType, x: number, y: number, z: number): MessageResult {
+	const message: Message = { WorkbenchPointUpdate: { id: workbench_id, inner: { id: point_id, inner: { x, y, z } } } }
+	return sendWasmMessage(message)
+}
+export function sketchAddPoint(workbench_id: IDType, sketch_id: IDType, x: number, y: number, z: number): MessageResult {
+	const message: Message = { SketchAddPoint: { id: workbench_id, inner: { id: sketch_id, inner: { x, y, z } } } }
+	return sendWasmMessage(message)
+}
+export function sketchAddArc(workbench_id: IDType, sketch_id: IDType, center: IDType, radius: number, clockwise: boolean, start_angle: number, end_angle: number): MessageResult {
+	const message: Message = { SketchAddArc: { id: workbench_id, inner: { id: sketch_id, inner: { center, radius, clockwise, start_angle, end_angle } } } }
+	return sendWasmMessage(message)
+}
+export function sketchAddCircle(workbench_id: IDType, sketch_id: IDType, center: IDType, radius: number): MessageResult {
+	const message: Message = { SketchAddCircle: { id: workbench_id, inner: { id: sketch_id, inner: { center, radius } } } }
+	return sendWasmMessage(message)
+}
+export function sketchAddLine(workbench_id: IDType, sketch_id: IDType, start: IDType, end: IDType): MessageResult {
+	const message: Message = { SketchAddLine: { id: workbench_id, inner: { id: sketch_id, inner: { start, end } } } }
+	return sendWasmMessage(message)
+}
+export function sketchDeletePrimitive(workbench_id: IDType, sketch_id: IDType, primitive_id: IDType): MessageResult {
+	const message: Message = { SketchDeletePrimitive: { id: workbench_id, inner: { id: sketch_id, inner: { id: primitive_id } } } }
+	return sendWasmMessage(message)
+}
+export function solidExtrusionAdd(workbench_id: IDType, sketch_id: IDType, faces: Face[], length: number, offset: number, direction: Direction, mode: Mode): MessageResult {
+	const message: Message = { SolidExtrusionAdd: { id: workbench_id, inner: { sketch_id, faces, length, offset, direction, mode } } }
+	return sendWasmMessage(message)
+}
diff --git a/packages/shared/projectUtils.ts b/packages/shared/projectUtils.ts
index 5f9229e8..2f412106 100644
--- a/packages/shared/projectUtils.ts
+++ b/packages/shared/projectUtils.ts
@@ -24,7 +24,7 @@ import type {
 	WithTarget,
 	WorkBench
 } from "./types"
-import type { Realization as WasmRealization, Message, Primitive, StepData, Workbench } from "cadmium"
+import type { Realization as WasmRealization, Message, Primitive, StepData, Workbench, MessageResult } from "cadmium"
 import { isMessage } from "./typeGuards"
 // import { isDevelopment } from "../+layout"
 
@@ -54,7 +54,7 @@ export function arraysEqual(a: any[], b: any[]) {
 	return true
 }
 
-function sendWasmMessage(message: Message) {
+export function sendWasmMessage(message: Message): MessageResult {
 	let wp = get(wasmProject)
 	log("[sendWasmMessage] sending message:", message)
 	let result = wp.send_message(message)