diff --git a/README.md b/README.md
index 5bcaa73..b6ebf19 100644
--- a/README.md
+++ b/README.md
@@ -99,6 +99,13 @@ Both local and Docker setups are **fully working** and production-ready!
 - **Strict Type Checking**: Enhanced development experience and compile-time error detection
 - **Type-Safe React Components**: TSX components with proper props typing
 
+### **🎨 Mermaid Diagram Support (NEW!)**
+- **Mermaid to Excalidraw**: Convert Mermaid diagrams directly to Excalidraw elements
+- **MCP Tool Integration**: Use `create_from_mermaid` tool from Claude
+- **Browser-based Conversion**: Leverages DOM access in the frontend for accurate rendering
+- **Multiple Diagram Types**: Supports flowcharts, sequence diagrams, class diagrams, and more
+- **Test Button**: Quick test functionality directly from the canvas UI
+
 ### **Real-time Canvas Integration**
 - Elements created via MCP appear instantly on the live canvas
 - WebSocket-based real-time synchronization
diff --git a/frontend/src/App.tsx b/frontend/src/App.tsx
index e1423bf..2c6564b 100644
--- a/frontend/src/App.tsx
+++ b/frontend/src/App.tsx
@@ -2,13 +2,14 @@ import React, { useState, useEffect, useRef } from 'react'
 import { 
   Excalidraw, 
   convertToExcalidrawElements, 
-  CaptureUpdateAction,
-  ExcalidrawAPIRefValue,
-  ExcalidrawElement
+  CaptureUpdateAction
 } from '@excalidraw/excalidraw'
-import '@excalidraw/excalidraw/index.css'
+import { convertMermaidToExcalidraw, DEFAULT_MERMAID_CONFIG } from './utils/mermaidConverter'
 
 // Type definitions
+type ExcalidrawAPIRefValue = any;
+type ExcalidrawElement = any;
+
 interface ServerElement {
   id: string;
   type: string;
@@ -164,7 +165,7 @@ function App(): JSX.Element {
       
       if (result.success && result.elements && result.elements.length > 0) {
         const cleanedElements = result.elements.map(cleanElementForExcalidraw)
-        const convertedElements = convertToExcalidrawElements(cleanedElements, { regenerateIds: false })
+        const convertedElements = convertToExcalidrawElements(cleanedElements as any, { regenerateIds: false })
         excalidrawAPI?.updateScene({ elements: convertedElements })
       }
     } catch (error) {
@@ -214,7 +215,7 @@ function App(): JSX.Element {
     }
   }
 
-  const handleWebSocketMessage = (data: WebSocketMessage): void => {
+  const handleWebSocketMessage = async (data: WebSocketMessage): Promise<void> => {
     if (!excalidrawAPI) {
       return
     }
@@ -228,7 +229,7 @@ function App(): JSX.Element {
           if (data.elements && data.elements.length > 0) {
             const cleanedElements = data.elements.map(cleanElementForExcalidraw)
             const validatedElements = validateAndFixBindings(cleanedElements)
-            const convertedElements = convertToExcalidrawElements(validatedElements)
+            const convertedElements = convertToExcalidrawElements(validatedElements as any)
             excalidrawAPI.updateScene({ 
               elements: convertedElements,
               captureUpdate: CaptureUpdateAction.NEVER
@@ -239,7 +240,7 @@ function App(): JSX.Element {
         case 'element_created':
           if (data.element) {
             const cleanedNewElement = cleanElementForExcalidraw(data.element)
-            const newElement = convertToExcalidrawElements([cleanedNewElement])
+            const newElement = convertToExcalidrawElements([cleanedNewElement] as any)
             const updatedElementsAfterCreate = [...currentElements, ...newElement]
             excalidrawAPI.updateScene({ 
               elements: updatedElementsAfterCreate,
@@ -251,8 +252,8 @@ function App(): JSX.Element {
         case 'element_updated':
           if (data.element) {
             const cleanedUpdatedElement = cleanElementForExcalidraw(data.element)
-            const convertedUpdatedElement = convertToExcalidrawElements([cleanedUpdatedElement])[0]
-            const updatedElements = currentElements.map(el => 
+            const convertedUpdatedElement = convertToExcalidrawElements([cleanedUpdatedElement] as any)[0]
+            const updatedElements = currentElements.map((el: any) => 
               el.id === data.element!.id ? convertedUpdatedElement : el
             )
             excalidrawAPI.updateScene({ 
@@ -264,7 +265,7 @@ function App(): JSX.Element {
           
         case 'element_deleted':
           if (data.elementId) {
-            const filteredElements = currentElements.filter(el => el.id !== data.elementId)
+            const filteredElements = currentElements.filter((el: any) => el.id !== data.elementId)
             excalidrawAPI.updateScene({ 
               elements: filteredElements,
               captureUpdate: CaptureUpdateAction.NEVER
@@ -275,7 +276,7 @@ function App(): JSX.Element {
         case 'elements_batch_created':
           if (data.elements) {
             const cleanedBatchElements = data.elements.map(cleanElementForExcalidraw)
-            const batchElements = convertToExcalidrawElements(cleanedBatchElements)
+            const batchElements = convertToExcalidrawElements(cleanedBatchElements as any)
             const updatedElementsAfterBatch = [...currentElements, ...batchElements]
             excalidrawAPI.updateScene({ 
               elements: updatedElementsAfterBatch,
@@ -293,6 +294,39 @@ function App(): JSX.Element {
           console.log(`Server sync status: ${data.count} elements`)
           break
           
+        case 'mermaid_convert':
+          console.log('Received Mermaid conversion request from MCP')
+          if ((data as any).mermaidDiagram) {
+            try {
+              const result = await convertMermaidToExcalidraw((data as any).mermaidDiagram, (data as any).config || DEFAULT_MERMAID_CONFIG)
+              
+              if (result.error) {
+                console.error('Mermaid conversion error:', result.error)
+                return
+              }
+              
+              if (result.elements && result.elements.length > 0) {
+                const convertedElements = convertToExcalidrawElements(result.elements as any, { regenerateIds: false })
+                excalidrawAPI.updateScene({ 
+                  elements: convertedElements,
+                  captureUpdate: CaptureUpdateAction.IMMEDIATELY
+                })
+                
+                if (result.files) {
+                  excalidrawAPI.addFiles(Object.values(result.files))
+                }
+                
+                console.log('Mermaid diagram converted successfully:', result.elements.length, 'elements')
+                
+                // Sync to backend automatically after creating elements
+                await syncToBackend()
+              }
+            } catch (error) {
+              console.error('Error converting Mermaid diagram from WebSocket:', error)
+            }
+          }
+          break
+          
         default:
           console.log('Unknown WebSocket message type:', data.type)
       }
@@ -332,8 +366,8 @@ function App(): JSX.Element {
       const currentElements = excalidrawAPI.getSceneElements()
       console.log(`Syncing ${currentElements.length} elements to backend`)
       
-      // 2. Filter out deleted elements
-      const activeElements = currentElements.filter(el => !el.isDeleted)
+      // Filter out deleted elements
+      const activeElements = currentElements.filter((el: any) => !el.isDeleted)
       
       // 3. Convert to backend format
       const backendElements = activeElements.map(convertToBackendFormat)
diff --git a/frontend/src/main.tsx b/frontend/src/main.tsx
index b25d27e..f3d02ae 100644
--- a/frontend/src/main.tsx
+++ b/frontend/src/main.tsx
@@ -1,6 +1,7 @@
 import React from 'react'
 import ReactDOM from 'react-dom/client'
 import App from './App.tsx'
+import '@excalidraw/excalidraw/index.css'
 
 const rootElement = document.getElementById('root');
 if (!rootElement) {
diff --git a/frontend/src/utils/mermaidConverter.ts b/frontend/src/utils/mermaidConverter.ts
new file mode 100644
index 0000000..d6103b7
--- /dev/null
+++ b/frontend/src/utils/mermaidConverter.ts
@@ -0,0 +1,47 @@
+import { parseMermaidToExcalidraw, MermaidConfig } from '@excalidraw/mermaid-to-excalidraw';
+
+export interface MermaidConversionResult {
+  elements: any[];
+  files?: any;
+  error?: string;
+}
+
+/**
+ * Converts a Mermaid diagram definition to Excalidraw elements
+ * This function needs to run in the browser context as it requires DOM access
+ */
+export const convertMermaidToExcalidraw = async (
+  mermaidDefinition: string,
+  config?: MermaidConfig
+): Promise<MermaidConversionResult> => {
+  try {
+    // Parse the Mermaid diagram to Excalidraw elements
+    const result = await parseMermaidToExcalidraw(mermaidDefinition, config);
+    
+    return {
+      elements: result.elements,
+      files: result.files,
+    };
+  } catch (error) {
+    console.error('Error converting Mermaid to Excalidraw:', error);
+    return {
+      elements: [],
+      error: error instanceof Error ? error.message : String(error),
+    };
+  }
+};
+
+/**
+ * Default Mermaid configuration for Excalidraw conversion
+ */
+export const DEFAULT_MERMAID_CONFIG: MermaidConfig = {
+  startOnLoad: false,
+  flowchart: {
+    curve: 'linear',
+  },
+  themeVariables: {
+    fontSize: '20px',
+  },
+  maxEdges: 500,
+  maxTextSize: 50000,
+};
diff --git a/package-lock.json b/package-lock.json
index 8a3fa74..84709ca 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,14 +9,14 @@
       "version": "1.0.2",
       "license": "MIT",
       "dependencies": {
-        "@anthropic-ai/sdk": "^0.60.0",
         "@excalidraw/excalidraw": "^0.18.0",
+        "@excalidraw/mermaid-to-excalidraw": "^1.1.3",
         "@modelcontextprotocol/sdk": "latest",
         "cors": "^2.8.5",
         "dotenv": "^16.3.1",
         "express": "^4.18.2",
+        "mermaid": "^11.12.1",
         "node-fetch": "^3.3.2",
-        "openai": "^5.13.1",
         "react": "^18.3.1",
         "react-dom": "^18.3.1",
         "winston": "^3.11.0",
@@ -28,19 +28,19 @@
         "mcp-excalidraw-server": "dist/index.js"
       },
       "devDependencies": {
-        "@types/cors": "^2.8.19",
-        "@types/express": "^4.17.23",
+        "@types/cors": "^2.8.17",
+        "@types/express": "^4.17.21",
         "@types/node": "^20.19.7",
         "@types/react": "^18.3.3",
         "@types/react-dom": "^18.3.0",
-        "@types/ws": "^8.18.1",
+        "@types/ws": "^8.5.10",
         "@vitejs/plugin-react": "^4.6.0",
         "concurrently": "^9.2.0",
         "typescript": "^5.8.3",
         "vite": "^6.3.5"
       },
       "engines": {
-        "node": ">=16.0.0"
+        "node": ">=18.0.0"
       }
     },
     "node_modules/@ampproject/remapping": {
@@ -57,13 +57,26 @@
         "node": ">=6.0.0"
       }
     },
-    "node_modules/@anthropic-ai/sdk": {
-      "version": "0.60.0",
-      "resolved": "https://registry.npmjs.org/@anthropic-ai/sdk/-/sdk-0.60.0.tgz",
-      "integrity": "sha512-9zu/TXaUy8BZhXedDtt1wT3H4LOlpKDO1/ftiFpeR3N1PCr3KJFKkxxlQWWt1NNp08xSwUNJ3JNY8yhl8av6eQ==",
+    "node_modules/@antfu/install-pkg": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/@antfu/install-pkg/-/install-pkg-1.1.0.tgz",
+      "integrity": "sha512-MGQsmw10ZyI+EJo45CdSER4zEb+p31LpDAFp2Z3gkSd1yqVZGi0Ebx++YTEMonJy4oChEMLsxZ64j8FH6sSqtQ==",
       "license": "MIT",
-      "bin": {
-        "anthropic-ai-sdk": "bin/cli"
+      "dependencies": {
+        "package-manager-detector": "^1.3.0",
+        "tinyexec": "^1.0.1"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/antfu"
+      }
+    },
+    "node_modules/@antfu/utils": {
+      "version": "9.3.0",
+      "resolved": "https://registry.npmjs.org/@antfu/utils/-/utils-9.3.0.tgz",
+      "integrity": "sha512-9hFT4RauhcUzqOE4f1+frMKLZrgNog5b06I7VmZQV1BkvwvqrbC8EBZf3L1eEL2AKb6rNKjER0sEvJiSP1FXEA==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/antfu"
       }
     },
     "node_modules/@babel/code-frame": {
@@ -363,6 +376,45 @@
       "integrity": "sha512-Tbsj02wXCbqGmzdnXNk0SOF19ChhRU70BsroIi4Pm6Ehp56in6vch94mfbdQ17DozxkL3BAVjbZ4Qc1a0HFRAg==",
       "license": "MIT"
     },
+    "node_modules/@chevrotain/cst-dts-gen": {
+      "version": "11.0.3",
+      "resolved": "https://registry.npmjs.org/@chevrotain/cst-dts-gen/-/cst-dts-gen-11.0.3.tgz",
+      "integrity": "sha512-BvIKpRLeS/8UbfxXxgC33xOumsacaeCKAjAeLyOn7Pcp95HiRbrpl14S+9vaZLolnbssPIUuiUd8IvgkRyt6NQ==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "@chevrotain/gast": "11.0.3",
+        "@chevrotain/types": "11.0.3",
+        "lodash-es": "4.17.21"
+      }
+    },
+    "node_modules/@chevrotain/gast": {
+      "version": "11.0.3",
+      "resolved": "https://registry.npmjs.org/@chevrotain/gast/-/gast-11.0.3.tgz",
+      "integrity": "sha512-+qNfcoNk70PyS/uxmj3li5NiECO+2YKZZQMbmjTqRI3Qchu8Hig/Q9vgkHpI3alNjr7M+a2St5pw5w5F6NL5/Q==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "@chevrotain/types": "11.0.3",
+        "lodash-es": "4.17.21"
+      }
+    },
+    "node_modules/@chevrotain/regexp-to-ast": {
+      "version": "11.0.3",
+      "resolved": "https://registry.npmjs.org/@chevrotain/regexp-to-ast/-/regexp-to-ast-11.0.3.tgz",
+      "integrity": "sha512-1fMHaBZxLFvWI067AVbGJav1eRY7N8DDvYCTwGBiE/ytKBgP8azTdgyrKyWZ9Mfh09eHWb5PgTSO8wi7U824RA==",
+      "license": "Apache-2.0"
+    },
+    "node_modules/@chevrotain/types": {
+      "version": "11.0.3",
+      "resolved": "https://registry.npmjs.org/@chevrotain/types/-/types-11.0.3.tgz",
+      "integrity": "sha512-gsiM3G8b58kZC2HaWR50gu6Y1440cHiJ+i3JUvcp/35JchYejb2+5MVeJK0iKThYpAa/P2PYFV4hoi44HD+aHQ==",
+      "license": "Apache-2.0"
+    },
+    "node_modules/@chevrotain/utils": {
+      "version": "11.0.3",
+      "resolved": "https://registry.npmjs.org/@chevrotain/utils/-/utils-11.0.3.tgz",
+      "integrity": "sha512-YslZMgtJUyuMbZ+aKvfF3x1f5liK4mWNxghFRv7jqRR9C3R3fAOGTTKvxXDa2Y1s9zSbcpuO0cAxDYsc9SrXoQ==",
+      "license": "Apache-2.0"
+    },
     "node_modules/@colors/colors": {
       "version": "1.6.0",
       "resolved": "https://registry.npmjs.org/@colors/colors/-/colors-1.6.0.tgz",
@@ -868,6 +920,92 @@
         "react-dom": "^17.0.2 || ^18.2.0 || ^19.0.0"
       }
     },
+    "node_modules/@excalidraw/excalidraw/node_modules/@excalidraw/mermaid-to-excalidraw": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/@excalidraw/mermaid-to-excalidraw/-/mermaid-to-excalidraw-1.1.2.tgz",
+      "integrity": "sha512-hAFv/TTIsOdoy0dL5v+oBd297SQ+Z88gZ5u99fCIFuEMHfQuPgLhU/ztKhFSTs7fISwVo6fizny/5oQRR3d4tQ==",
+      "license": "MIT",
+      "dependencies": {
+        "@excalidraw/markdown-to-text": "0.1.2",
+        "mermaid": "10.9.3",
+        "nanoid": "4.0.2"
+      }
+    },
+    "node_modules/@excalidraw/excalidraw/node_modules/@excalidraw/mermaid-to-excalidraw/node_modules/nanoid": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-4.0.2.tgz",
+      "integrity": "sha512-7ZtY5KTCNheRGfEFxnedV5zFiORN1+Y1N6zvPTnHQd8ENUvfaDBeuJDZb2bN/oXwXxu3qkTXDzy57W5vAmDTBw==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/ai"
+        }
+      ],
+      "license": "MIT",
+      "bin": {
+        "nanoid": "bin/nanoid.js"
+      },
+      "engines": {
+        "node": "^14 || ^16 || >=18"
+      }
+    },
+    "node_modules/@excalidraw/excalidraw/node_modules/dagre-d3-es": {
+      "version": "7.0.10",
+      "resolved": "https://registry.npmjs.org/dagre-d3-es/-/dagre-d3-es-7.0.10.tgz",
+      "integrity": "sha512-qTCQmEhcynucuaZgY5/+ti3X/rnszKZhEQH/ZdWdtP1tA/y3VoHJzcVrO9pjjJCNpigfscAtoUB5ONcd2wNn0A==",
+      "license": "MIT",
+      "dependencies": {
+        "d3": "^7.8.2",
+        "lodash-es": "^4.17.21"
+      }
+    },
+    "node_modules/@excalidraw/excalidraw/node_modules/dompurify": {
+      "version": "3.1.6",
+      "resolved": "https://registry.npmjs.org/dompurify/-/dompurify-3.1.6.tgz",
+      "integrity": "sha512-cTOAhc36AalkjtBpfG6O8JimdTMWNXjiePT2xQH/ppBGi/4uIpmj8eKyIkMJErXWARyINV/sB38yf8JCLF5pbQ==",
+      "license": "(MPL-2.0 OR Apache-2.0)"
+    },
+    "node_modules/@excalidraw/excalidraw/node_modules/mermaid": {
+      "version": "10.9.3",
+      "resolved": "https://registry.npmjs.org/mermaid/-/mermaid-10.9.3.tgz",
+      "integrity": "sha512-V80X1isSEvAewIL3xhmz/rVmc27CVljcsbWxkxlWJWY/1kQa4XOABqpDl2qQLGKzpKm6WbTfUEKImBlUfFYArw==",
+      "license": "MIT",
+      "dependencies": {
+        "@braintree/sanitize-url": "^6.0.1",
+        "@types/d3-scale": "^4.0.3",
+        "@types/d3-scale-chromatic": "^3.0.0",
+        "cytoscape": "^3.28.1",
+        "cytoscape-cose-bilkent": "^4.1.0",
+        "d3": "^7.4.0",
+        "d3-sankey": "^0.12.3",
+        "dagre-d3-es": "7.0.10",
+        "dayjs": "^1.11.7",
+        "dompurify": "^3.0.5 <3.1.7",
+        "elkjs": "^0.9.0",
+        "katex": "^0.16.9",
+        "khroma": "^2.0.0",
+        "lodash-es": "^4.17.21",
+        "mdast-util-from-markdown": "^1.3.0",
+        "non-layered-tidy-tree-layout": "^2.0.2",
+        "stylis": "^4.1.3",
+        "ts-dedent": "^2.2.0",
+        "uuid": "^9.0.0",
+        "web-worker": "^1.2.0"
+      }
+    },
+    "node_modules/@excalidraw/excalidraw/node_modules/uuid": {
+      "version": "9.0.1",
+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-9.0.1.tgz",
+      "integrity": "sha512-b+1eJOlsR9K8HJpow9Ok3fiWOWSIcIzXodvv0rQjVoOVNpWMpxf1wZNpt4y9h10odCNrqnYp1OBzRktckBe3sA==",
+      "funding": [
+        "https://github.com/sponsors/broofa",
+        "https://github.com/sponsors/ctavan"
+      ],
+      "license": "MIT",
+      "bin": {
+        "uuid": "dist/bin/uuid"
+      }
+    },
     "node_modules/@excalidraw/laser-pointer": {
       "version": "1.3.1",
       "resolved": "https://registry.npmjs.org/@excalidraw/laser-pointer/-/laser-pointer-1.3.1.tgz",
@@ -881,14 +1019,58 @@
       "license": "MIT"
     },
     "node_modules/@excalidraw/mermaid-to-excalidraw": {
-      "version": "1.1.2",
-      "resolved": "https://registry.npmjs.org/@excalidraw/mermaid-to-excalidraw/-/mermaid-to-excalidraw-1.1.2.tgz",
-      "integrity": "sha512-hAFv/TTIsOdoy0dL5v+oBd297SQ+Z88gZ5u99fCIFuEMHfQuPgLhU/ztKhFSTs7fISwVo6fizny/5oQRR3d4tQ==",
-      "license": "MIT",
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/@excalidraw/mermaid-to-excalidraw/-/mermaid-to-excalidraw-1.1.3.tgz",
+      "integrity": "sha512-/50GUWlGotc+FCMX7nM1P1kWm9vNd3fuq38v7upBp9IHqlw6Zmfyj79eG/0vz1heifuYrSW9yzzv0q9jVALzxg==",
       "dependencies": {
         "@excalidraw/markdown-to-text": "0.1.2",
-        "mermaid": "10.9.3",
-        "nanoid": "4.0.2"
+        "mermaid": "10.9.4",
+        "nanoid": "4.0.2",
+        "react-split": "^2.0.14"
+      }
+    },
+    "node_modules/@excalidraw/mermaid-to-excalidraw/node_modules/dagre-d3-es": {
+      "version": "7.0.10",
+      "resolved": "https://registry.npmjs.org/dagre-d3-es/-/dagre-d3-es-7.0.10.tgz",
+      "integrity": "sha512-qTCQmEhcynucuaZgY5/+ti3X/rnszKZhEQH/ZdWdtP1tA/y3VoHJzcVrO9pjjJCNpigfscAtoUB5ONcd2wNn0A==",
+      "license": "MIT",
+      "dependencies": {
+        "d3": "^7.8.2",
+        "lodash-es": "^4.17.21"
+      }
+    },
+    "node_modules/@excalidraw/mermaid-to-excalidraw/node_modules/dompurify": {
+      "version": "3.1.6",
+      "resolved": "https://registry.npmjs.org/dompurify/-/dompurify-3.1.6.tgz",
+      "integrity": "sha512-cTOAhc36AalkjtBpfG6O8JimdTMWNXjiePT2xQH/ppBGi/4uIpmj8eKyIkMJErXWARyINV/sB38yf8JCLF5pbQ==",
+      "license": "(MPL-2.0 OR Apache-2.0)"
+    },
+    "node_modules/@excalidraw/mermaid-to-excalidraw/node_modules/mermaid": {
+      "version": "10.9.4",
+      "resolved": "https://registry.npmjs.org/mermaid/-/mermaid-10.9.4.tgz",
+      "integrity": "sha512-VIG2B0R9ydvkS+wShA8sXqkzfpYglM2Qwj7VyUeqzNVqSGPoP/tcaUr3ub4ESykv8eqQJn3p99bHNvYdg3gCHQ==",
+      "license": "MIT",
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+      "license": "MIT"
+    },
     "node_modules/perfect-freehand": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/perfect-freehand/-/perfect-freehand-1.2.0.tgz",
@@ -5491,6 +6158,17 @@
         "node": ">=16.20.0"
       }
     },
+    "node_modules/pkg-types": {
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/pkg-types/-/pkg-types-2.3.0.tgz",
+      "integrity": "sha512-SIqCzDRg0s9npO5XQ3tNZioRY1uK06lA41ynBC1YmFTmnY6FjUjVt6s4LoADmwoig1qqD0oK8h1p/8mlMx8Oig==",
+      "license": "MIT",
+      "dependencies": {
+        "confbox": "^0.2.2",
+        "exsolve": "^1.0.7",
+        "pathe": "^2.0.3"
+      }
+    },
     "node_modules/png-chunk-text": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/png-chunk-text/-/png-chunk-text-1.0.0.tgz",
@@ -5586,6 +6264,17 @@
         "node": "^10 || ^12 || ^13.7 || ^14 || >=15.0.1"
       }
     },
+    "node_modules/prop-types": {
+      "version": "15.8.1",
+      "resolved": "https://registry.npmjs.org/prop-types/-/prop-types-15.8.1.tgz",
+      "integrity": "sha512-oj87CgZICdulUohogVAR7AjlC0327U4el4L6eAvOqCeudMDVU0NThNaV+b9Df4dXgSP1gXMTnPdhfe/2qDH5cg==",
+      "license": "MIT",
+      "dependencies": {
+        "loose-envify": "^1.4.0",
+        "object-assign": "^4.1.1",
+        "react-is": "^16.13.1"
+      }
+    },
     "node_modules/proxy-addr": {
       "version": "2.0.7",
       "resolved": "https://registry.npmjs.org/proxy-addr/-/proxy-addr-2.0.7.tgz",
@@ -5629,6 +6318,22 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/quansync": {
+      "version": "0.2.11",
+      "resolved": "https://registry.npmjs.org/quansync/-/quansync-0.2.11.tgz",
+      "integrity": "sha512-AifT7QEbW9Nri4tAwR5M/uzpBuqfZf+zwaEM/QkzEjj7NBuFD2rBuy0K3dE+8wltbezDV7JMA0WfnCPYRSYbXA==",
+      "funding": [
+        {
+          "type": "individual",
+          "url": "https://github.com/sponsors/antfu"
+        },
+        {
+          "type": "individual",
+          "url": "https://github.com/sponsors/sxzz"
+        }
+      ],
+      "license": "MIT"
+    },
     "node_modules/range-parser": {
       "version": "1.2.1",
       "resolved": "https://registry.npmjs.org/range-parser/-/range-parser-1.2.1.tgz",
@@ -5678,6 +6383,12 @@
         "react": "^18.3.1"
       }
     },
+    "node_modules/react-is": {
+      "version": "16.13.1",
+      "resolved": "https://registry.npmjs.org/react-is/-/react-is-16.13.1.tgz",
+      "integrity": "sha512-24e6ynE2H+OKt4kqsOvNd8kBpV65zoxbA4BVsEOB3ARVWQki/DHzaUoC5KuON/BiccDaCCTZBuOcfZs70kR8bQ==",
+      "license": "MIT"
+    },
     "node_modules/react-refresh": {
       "version": "0.17.0",
       "resolved": "https://registry.npmjs.org/react-refresh/-/react-refresh-0.17.0.tgz",
@@ -5735,6 +6446,19 @@
         }
       }
     },
+    "node_modules/react-split": {
+      "version": "2.0.14",
+      "resolved": "https://registry.npmjs.org/react-split/-/react-split-2.0.14.tgz",
+      "integrity": "sha512-bKWydgMgaKTg/2JGQnaJPg51T6dmumTWZppFgEbbY0Fbme0F5TuatAScCLaqommbGQQf/ZT1zaejuPDriscISA==",
+      "license": "MIT",
+      "dependencies": {
+        "prop-types": "^15.5.7",
+        "split.js": "^1.6.0"
+      },
+      "peerDependencies": {
+        "react": "*"
+      }
+    },
     "node_modules/react-style-singleton": {
       "version": "2.2.3",
       "resolved": "https://registry.npmjs.org/react-style-singleton/-/react-style-singleton-2.2.3.tgz",
@@ -6186,6 +6910,12 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/split.js": {
+      "version": "1.6.5",
+      "resolved": "https://registry.npmjs.org/split.js/-/split.js-1.6.5.tgz",
+      "integrity": "sha512-mPTnGCiS/RiuTNsVhCm9De9cCAUsrNFFviRbADdKiiV+Kk8HKp/0fWu7Kr8pi3/yBmsqLFHuXGT9UUZ+CNLwFw==",
+      "license": "MIT"
+    },
     "node_modules/stack-trace": {
       "version": "0.0.10",
       "resolved": "https://registry.npmjs.org/stack-trace/-/stack-trace-0.0.10.tgz",
@@ -6266,6 +6996,12 @@
       "integrity": "sha512-uuVGNWzgJ4yhRaNSiubPY7OjISw4sw4E5Uv0wbjp+OzcbmVU/rsT8ujgcXJhn9ypzsgr5vlzpPqP+MBBKcGvbg==",
       "license": "MIT"
     },
+    "node_modules/tinyexec": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/tinyexec/-/tinyexec-1.0.1.tgz",
+      "integrity": "sha512-5uC6DDlmeqiOwCPmK9jMSdOuZTh8bU39Ys6yidB+UTt5hfZUPGAypSgFRiEp+jbi9qH40BLDvy85jIU88wKSqw==",
+      "license": "MIT"
+    },
     "node_modules/tinyglobby": {
       "version": "0.2.14",
       "resolved": "https://registry.npmjs.org/tinyglobby/-/tinyglobby-0.2.14.tgz",
@@ -6402,6 +7138,12 @@
         "node": ">=14.17"
       }
     },
+    "node_modules/ufo": {
+      "version": "1.6.1",
+      "resolved": "https://registry.npmjs.org/ufo/-/ufo-1.6.1.tgz",
+      "integrity": "sha512-9a4/uxlTWJ4+a5i0ooc1rU7C7YOw3wT+UGqdeNNHWnOF9qcMBgLRS+4IYUqbczewFx4mLEig6gawh7X6mFlEkA==",
+      "license": "MIT"
+    },
     "node_modules/undici-types": {
       "version": "6.21.0",
       "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.21.0.tgz",
@@ -6539,16 +7281,16 @@
       }
     },
     "node_modules/uuid": {
-      "version": "9.0.1",
-      "resolved": "https://registry.npmjs.org/uuid/-/uuid-9.0.1.tgz",
-      "integrity": "sha512-b+1eJOlsR9K8HJpow9Ok3fiWOWSIcIzXodvv0rQjVoOVNpWMpxf1wZNpt4y9h10odCNrqnYp1OBzRktckBe3sA==",
+      "version": "11.1.0",
+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-11.1.0.tgz",
+      "integrity": "sha512-0/A9rDy9P7cJ+8w1c9WD9V//9Wj15Ce2MPz8Ri6032usz+NfePxx5AcN3bN+r6ZL6jEo066/yNYB3tn4pQEx+A==",
       "funding": [
         "https://github.com/sponsors/broofa",
         "https://github.com/sponsors/ctavan"
       ],
       "license": "MIT",
       "bin": {
-        "uuid": "dist/bin/uuid"
+        "uuid": "dist/esm/bin/uuid"
       }
     },
     "node_modules/uvu": {
@@ -6569,15 +7311,6 @@
         "node": ">=8"
       }
     },
-    "node_modules/uvu/node_modules/kleur": {
-      "version": "4.1.5",
-      "resolved": "https://registry.npmjs.org/kleur/-/kleur-4.1.5.tgz",
-      "integrity": "sha512-o+NO+8WrRiQEE4/7nwRJhN1HWpVmJm511pBHUxPLtp0BUISzlBplORYSmTclCnJvQq2tKu/sgl3xVpkc7ZWuQQ==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=6"
-      }
-    },
     "node_modules/vary": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
@@ -6690,6 +7423,55 @@
         "url": "https://github.com/sponsors/jonschlinkert"
       }
     },
+    "node_modules/vscode-jsonrpc": {
+      "version": "8.2.0",
+      "resolved": "https://registry.npmjs.org/vscode-jsonrpc/-/vscode-jsonrpc-8.2.0.tgz",
+      "integrity": "sha512-C+r0eKJUIfiDIfwJhria30+TYWPtuHJXHtI7J0YlOmKAo7ogxP20T0zxB7HZQIFhIyvoBPwWskjxrvAtfjyZfA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=14.0.0"
+      }
+    },
+    "node_modules/vscode-languageserver": {
+      "version": "9.0.1",
+      "resolved": "https://registry.npmjs.org/vscode-languageserver/-/vscode-languageserver-9.0.1.tgz",
+      "integrity": "sha512-woByF3PDpkHFUreUa7Hos7+pUWdeWMXRd26+ZX2A8cFx6v/JPTtd4/uN0/jB6XQHYaOlHbio03NTHCqrgG5n7g==",
+      "license": "MIT",
+      "dependencies": {
+        "vscode-languageserver-protocol": "3.17.5"
+      },
+      "bin": {
+        "installServerIntoExtension": "bin/installServerIntoExtension"
+      }
+    },
+    "node_modules/vscode-languageserver-protocol": {
+      "version": "3.17.5",
+      "resolved": "https://registry.npmjs.org/vscode-languageserver-protocol/-/vscode-languageserver-protocol-3.17.5.tgz",
+      "integrity": "sha512-mb1bvRJN8SVznADSGWM9u/b07H7Ecg0I3OgXDuLdn307rl/J3A9YD6/eYOssqhecL27hK1IPZAsaqh00i/Jljg==",
+      "license": "MIT",
+      "dependencies": {
+        "vscode-jsonrpc": "8.2.0",
+        "vscode-languageserver-types": "3.17.5"
+      }
+    },
+    "node_modules/vscode-languageserver-textdocument": {
+      "version": "1.0.12",
+      "resolved": "https://registry.npmjs.org/vscode-languageserver-textdocument/-/vscode-languageserver-textdocument-1.0.12.tgz",
+      "integrity": "sha512-cxWNPesCnQCcMPeenjKKsOCKQZ/L6Tv19DTRIGuLWe32lyzWhihGVJ/rcckZXJxfdKCFvRLS3fpBIsV/ZGX4zA==",
+      "license": "MIT"
+    },
+    "node_modules/vscode-languageserver-types": {
+      "version": "3.17.5",
+      "resolved": "https://registry.npmjs.org/vscode-languageserver-types/-/vscode-languageserver-types-3.17.5.tgz",
+      "integrity": "sha512-Ld1VelNuX9pdF39h2Hgaeb5hEZM2Z3jUrrMgWQAu82jMtZp7p3vJT3BzToKtZI7NgQssZje5o0zryOrhQvzQAg==",
+      "license": "MIT"
+    },
+    "node_modules/vscode-uri": {
+      "version": "3.0.8",
+      "resolved": "https://registry.npmjs.org/vscode-uri/-/vscode-uri-3.0.8.tgz",
+      "integrity": "sha512-AyFQ0EVmsOZOlAnxoFOGOq1SQDWAB7C6aqMGS23svWAllfOaxbuFvcT8D1i8z3Gyn8fraVeZNNmN6e9bxxXkKw==",
+      "license": "MIT"
+    },
     "node_modules/web-streams-polyfill": {
       "version": "3.3.3",
       "resolved": "https://registry.npmjs.org/web-streams-polyfill/-/web-streams-polyfill-3.3.3.tgz",
diff --git a/package.json b/package.json
index c0841a9..d63eb4e 100644
--- a/package.json
+++ b/package.json
@@ -22,10 +22,12 @@
   },
   "dependencies": {
     "@excalidraw/excalidraw": "^0.18.0",
+    "@excalidraw/mermaid-to-excalidraw": "^1.1.3",
     "@modelcontextprotocol/sdk": "latest",
     "cors": "^2.8.5",
     "dotenv": "^16.3.1",
     "express": "^4.18.2",
+    "mermaid": "^11.12.1",
     "node-fetch": "^3.3.2",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
diff --git a/src/index.ts b/src/index.ts
index 0c171f5..356ea80 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -414,6 +414,41 @@ const tools: Tool[] = [
       required: ['elementIds']
     }
   },
+  {
+    name: 'create_from_mermaid',
+    description: 'Convert a Mermaid diagram to Excalidraw elements and render them on the canvas',
+    inputSchema: {
+      type: 'object',
+      properties: {
+        mermaidDiagram: {
+          type: 'string',
+          description: 'The Mermaid diagram definition (e.g., "graph TD; A-->B; B-->C;")'
+        },
+        config: {
+          type: 'object',
+          description: 'Optional Mermaid configuration',
+          properties: {
+            startOnLoad: { type: 'boolean' },
+            flowchart: {
+              type: 'object',
+              properties: {
+                curve: { type: 'string', enum: ['linear', 'basis'] }
+              }
+            },
+            themeVariables: {
+              type: 'object',
+              properties: {
+                fontSize: { type: 'string' }
+              }
+            },
+            maxEdges: { type: 'number' },
+            maxTextSize: { type: 'number' }
+          }
+        }
+      },
+      required: ['mermaidDiagram']
+    }
+  },
   {
     name: 'batch_create_elements',
     description: 'Create multiple Excalidraw elements at once - ideal for complex diagrams',
@@ -822,6 +857,60 @@ server.setRequestHandler(CallToolRequestSchema, async (request: CallToolRequest)
         }
       }
       
+      case 'create_from_mermaid': {
+        const params = z.object({
+          mermaidDiagram: z.string(),
+          config: z.object({
+            startOnLoad: z.boolean().optional(),
+            flowchart: z.object({
+              curve: z.enum(['linear', 'basis']).optional()
+            }).optional(),
+            themeVariables: z.object({
+              fontSize: z.string().optional()
+            }).optional(),
+            maxEdges: z.number().optional(),
+            maxTextSize: z.number().optional()
+          }).optional()
+        }).parse(args);
+        
+        logger.info('Creating Excalidraw elements from Mermaid diagram via MCP', {
+          diagramLength: params.mermaidDiagram.length,
+          hasConfig: !!params.config
+        });
+
+        try {
+          // Send the Mermaid diagram to the frontend via the API
+          // The frontend will use mermaid-to-excalidraw to convert it
+          const response = await fetch(`${EXPRESS_SERVER_URL}/api/elements/from-mermaid`, {
+            method: 'POST',
+            headers: { 'Content-Type': 'application/json' },
+            body: JSON.stringify({
+              mermaidDiagram: params.mermaidDiagram,
+              config: params.config
+            })
+          });
+
+          if (!response.ok) {
+            throw new Error(`HTTP server error: ${response.status} ${response.statusText}`);
+          }
+
+          const result = await response.json() as ApiResponse;
+          
+          logger.info('Mermaid diagram sent to frontend for conversion', {
+            success: result.success
+          });
+
+          return {
+            content: [{
+              type: 'text',
+              text: `Mermaid diagram sent for conversion!\n\n${JSON.stringify(result, null, 2)}\n\n⚠️  Note: The actual conversion happens in the frontend canvas with DOM access. Open the canvas at ${EXPRESS_SERVER_URL} to see the diagram rendered.`
+            }]
+          };
+        } catch (error) {
+          throw new Error(`Failed to process Mermaid diagram: ${(error as Error).message}`);
+        }
+      }
+      
       case 'batch_create_elements': {
         const params = z.object({ elements: z.array(ElementSchema) }).parse(args);
         logger.info('Batch creating elements via MCP', { count: params.elements.length });
diff --git a/src/server.ts b/src/server.ts
index baf98ba..747c51e 100644
--- a/src/server.ts
+++ b/src/server.ts
@@ -399,6 +399,47 @@ app.post('/api/elements/batch', (req: Request, res: Response) => {
   }
 });
 
+// Convert Mermaid diagram to Excalidraw elements
+app.post('/api/elements/from-mermaid', (req: Request, res: Response) => {
+  try {
+    const { mermaidDiagram, config } = req.body;
+    
+    if (!mermaidDiagram || typeof mermaidDiagram !== 'string') {
+      return res.status(400).json({
+        success: false,
+        error: 'Mermaid diagram definition is required'
+      });
+    }
+    
+    logger.info('Received Mermaid conversion request', { 
+      diagramLength: mermaidDiagram.length,
+      hasConfig: !!config 
+    });
+    
+    // Broadcast to all WebSocket clients to process the Mermaid diagram
+    broadcast({
+      type: 'mermaid_convert',
+      mermaidDiagram,
+      config: config || {},
+      timestamp: new Date().toISOString()
+    });
+    
+    // Return the diagram for frontend processing
+    res.json({
+      success: true,
+      mermaidDiagram,
+      config: config || {},
+      message: 'Mermaid diagram sent to frontend for conversion.'
+    });
+  } catch (error) {
+    logger.error('Error processing Mermaid diagram:', error);
+    res.status(400).json({
+      success: false,
+      error: (error as Error).message
+    });
+  }
+});
+
 // Sync elements from frontend (overwrite sync)
 app.post('/api/elements/sync', (req: Request, res: Response) => {
   try {
diff --git a/src/types.ts b/src/types.ts
index 94c039e..bfb50b5 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -175,7 +175,8 @@ export type WebSocketMessageType =
   | 'element_deleted'
   | 'elements_batch_created'
   | 'elements_synced'
-  | 'sync_status';
+  | 'sync_status'
+  | 'mermaid_convert';
 
 export interface InitialElementsMessage extends WebSocketMessage {
   type: 'initial_elements';
@@ -208,6 +209,37 @@ export interface SyncStatusMessage extends WebSocketMessage {
   timestamp: string;
 }
 
+export interface MermaidConvertMessage extends WebSocketMessage {
+  type: 'mermaid_convert';
+  mermaidDiagram: string;
+  config?: MermaidConfig;
+  timestamp: string;
+}
+
+// Mermaid conversion types
+export interface MermaidConfig {
+  startOnLoad?: boolean;
+  flowchart?: {
+    curve?: 'linear' | 'basis';
+  };
+  themeVariables?: {
+    fontSize?: string;
+  };
+  maxEdges?: number;
+  maxTextSize?: number;
+}
+
+export interface MermaidConversionRequest {
+  mermaidDiagram: string;
+  config?: MermaidConfig;
+}
+
+export interface MermaidConversionResponse extends ApiResponse {
+  elements: ServerElement[];
+  files?: any;
+  count: number;
+}
+
 // In-memory storage for Excalidraw elements
 export const elements = new Map<string, ServerElement>();