diff --git a/jsoncanvas.schema.json b/jsoncanvas.schema.json
new file mode 100644
index 0000000..ba68bb7
--- /dev/null
+++ b/jsoncanvas.schema.json
@@ -0,0 +1,163 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "$ref": "#/definitions/JsonCanvas",
+  "definitions": {
+    "JsonCanvas": {
+      "type": "object",
+      "properties": {
+        "nodes": {
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/CanvasNode"
+          }
+        },
+        "edges": {
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/Edge"
+          }
+        }
+      },
+      "additionalProperties": false,
+      "description": "Top-level interface for the JSON Canvas Spec"
+    },
+    "CanvasNode": {
+      "type": "object",
+      "properties": {
+        "id": {
+          "type": "string"
+        },
+        "type": {
+          "type": "string",
+          "enum": [
+            "text",
+            "file",
+            "link",
+            "group"
+          ]
+        },
+        "x": {
+          "type": "number"
+        },
+        "y": {
+          "type": "number"
+        },
+        "width": {
+          "type": "number"
+        },
+        "height": {
+          "type": "number"
+        },
+        "color": {
+          "$ref": "#/definitions/CanvasColor"
+        }
+      },
+      "required": [
+        "id",
+        "type",
+        "x",
+        "y",
+        "width",
+        "height"
+      ],
+      "additionalProperties": false,
+      "description": "Base node interface for common attributes"
+    },
+    "CanvasColor": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "number",
+          "const": 1
+        },
+        {
+          "type": "number",
+          "const": 2
+        },
+        {
+          "type": "number",
+          "const": 3
+        },
+        {
+          "type": "number",
+          "const": 4
+        },
+        {
+          "type": "number",
+          "const": 5
+        },
+        {
+          "type": "number",
+          "const": 6
+        }
+      ],
+      "description": "Type for color, either a string for hex values or a number for preset colors"
+    },
+    "Edge": {
+      "type": "object",
+      "properties": {
+        "id": {
+          "type": "string"
+        },
+        "fromNode": {
+          "type": "string"
+        },
+        "fromSide": {
+          "type": "string",
+          "enum": [
+            "top",
+            "right",
+            "bottom",
+            "left"
+          ],
+          "description": "Optional side of the node where the edge starts"
+        },
+        "fromEnd": {
+          "type": "string",
+          "enum": [
+            "none",
+            "arrow"
+          ],
+          "description": "Optional style of the edge end"
+        },
+        "toNode": {
+          "type": "string"
+        },
+        "toSide": {
+          "type": "string",
+          "enum": [
+            "top",
+            "right",
+            "bottom",
+            "left"
+          ],
+          "description": "Optional side of the node where the edge ends"
+        },
+        "toEnd": {
+          "type": "string",
+          "enum": [
+            "none",
+            "arrow"
+          ],
+          "description": "Optional style of the edge end"
+        },
+        "color": {
+          "$ref": "#/definitions/CanvasColor"
+        },
+        "label": {
+          "type": "string",
+          "description": "Optional label for the edge"
+        }
+      },
+      "required": [
+        "id",
+        "fromNode",
+        "toNode"
+      ],
+      "additionalProperties": false,
+      "description": "Edge interface for connections between nodes"
+    }
+  }
+}
\ No newline at end of file
diff --git a/src/index.ts b/src/index.ts
new file mode 100644
index 0000000..4690034
--- /dev/null
+++ b/src/index.ts
@@ -0,0 +1,118 @@
+/**
+ * Top-level interface for the JSON Canvas Spec
+ */
+export interface JsonCanvas {
+	nodes?: CanvasNode[];
+	edges?: Edge[];
+}
+
+export default JsonCanvas;
+
+/**
+ * Base node interface for common attributes
+ */
+export interface CanvasNode {
+	id: string;
+	type: "text" | "file" | "link" | "group";
+	x: number;
+	y: number;
+	width: number;
+	height: number;
+	color?: CanvasColor;
+}
+
+/**
+ * Extended node interface for TextNode type
+ */
+export interface TextNode extends CanvasNode {
+	type: "text";
+	/**
+	 * Text content with Markdown syntax
+	 */
+	text: string;
+}
+
+/**
+ * Extended node interface for FileNode type
+ */
+export interface FileNode extends CanvasNode {
+	type: "file";
+	/**
+	 * Path to the file
+	 */
+	file: string;
+	/**
+	 * Optional subpath within the file
+	 */
+	subpath?: string;
+}
+
+/**
+ * Extended node interface for LinkNode type
+ */
+export interface LinkNode extends CanvasNode {
+	type: "link";
+	/**
+	 * URL the node references
+	 */
+	url: string;
+}
+
+/**
+ * Extended node interface for GroupNode type
+ */
+export interface GroupNode extends CanvasNode {
+	type: "group";
+	/**
+	 * Optional text label for the group
+	 */
+	label?: string;
+	/**
+	 * Optional path to a background image
+	 */
+	background?: string;
+	/**
+	 * Optional rendering style of the background
+	 */
+	backgroundStyle?: "cover" | "ratio" | "repeat";
+}
+
+/**
+ * Union type for all node types
+ */
+export type AllNodes = TextNode | FileNode | LinkNode | GroupNode;
+
+/**
+ * Edge interface for connections between nodes
+ */
+export interface Edge {
+	id: string;
+	fromNode: string;
+	/**
+	 * Optional side of the node where the edge starts
+	 */
+	fromSide?: "top" | "right" | "bottom" | "left";
+	/**
+	 * Optional style of the edge end
+	 */
+	fromEnd?: "none" | "arrow";
+	toNode: string;
+	/**
+	 * Optional side of the node where the edge ends
+	 */
+	toSide?: "top" | "right" | "bottom" | "left";
+	/**
+	 * Optional style of the edge end
+	 */
+	toEnd?: "none" | "arrow";
+	color?: CanvasColor;
+	/**
+	 * Optional label for the edge
+	 */
+	label?: string;
+}
+
+/**
+ * Type for color, either a string for hex values or a number for preset colors
+ */
+export type CanvasColor = string | 1 | 2 | 3 | 4 | 5 | 6;