{
  "name": "Invoice Processing with Claude Vision",
  "nodes": [
    {
      "parameters": {
        "formTitle": "Invoice Upload (Claude)",
        "formDescription": "Upload an invoice image to extract data using Claude Vision API",
        "formFields": {
          "values": [
            {
              "fieldLabel": "Invoice File",
              "fieldType": "file",
              "requiredField": true,
              "acceptFileTypes": ".png,.jpg,.jpeg,.webp,.pdf"
            }
          ]
        },
        "options": {
          "respondWithOptions": {
            "values": {
              "formSubmittedText": "Processing your invoice..."
            }
          }
        }
      },
      "id": "form-trigger",
      "name": "Upload Invoice Form",
      "type": "n8n-nodes-base.formTrigger",
      "typeVersion": 2.2,
      "position": [250, 300],
      "webhookId": "invoice-form-claude"
    },
    {
      "parameters": {
        "method": "POST",
        "url": "https://api.anthropic.com/v1/messages",
        "authentication": "genericCredentialType",
        "genericAuthType": "httpHeaderAuth",
        "sendHeaders": true,
        "headerParameters": {
          "parameters": [
            {
              "name": "anthropic-version",
              "value": "2023-06-01"
            }
          ]
        },
        "sendBody": true,
        "specifyBody": "json",
        "jsonBody": "={\n  \"model\": \"claude-sonnet-4-20250514\",\n  \"max_tokens\": 4096,\n  \"messages\": [\n    {\n      \"role\": \"user\",\n      \"content\": [\n        {\n          \"type\": \"image\",\n          \"source\": {\n            \"type\": \"base64\",\n            \"media_type\": \"{{ $binary['Invoice File'].mimeType }}\",\n            \"data\": \"{{ $binary['Invoice File'].data }}\"\n          }\n        },\n        {\n          \"type\": \"text\",\n          \"text\": \"Analyze this invoice and extract data as JSON. Return ONLY valid JSON with this structure:\\n{\\n  \\\"vendor\\\": { \\\"name\\\": \\\"\\\", \\\"address\\\": \\\"\\\", \\\"tax_id\\\": \\\"\\\" },\\n  \\\"invoice\\\": { \\\"number\\\": \\\"\\\", \\\"date\\\": \\\"\\\", \\\"due_date\\\": \\\"\\\" },\\n  \\\"line_items\\\": [{ \\\"description\\\": \\\"\\\", \\\"quantity\\\": 0, \\\"unit_price\\\": 0, \\\"total\\\": 0 }],\\n  \\\"totals\\\": { \\\"net\\\": 0, \\\"tax_rate\\\": 0, \\\"tax_amount\\\": 0, \\\"gross\\\": 0 }\\n}\\nNo explanation, just JSON.\"\n        }\n      ]\n    }\n  ]\n}",
        "options": {}
      },
      "id": "claude-vision",
      "name": "Claude Vision API",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [470, 300],
      "credentials": {
        "httpHeaderAuth": {
          "id": "CONFIGURE_ME",
          "name": "Anthropic API Key"
        }
      }
    },
    {
      "parameters": {
        "jsCode": "const response = $input.first().json;\n\ntry {\n  let content = response.content?.[0]?.text || '';\n  content = content.replace(/```json\\n?/g, '').replace(/```\\n?/g, '').trim();\n  \n  const jsonMatch = content.match(/\\{[\\s\\S]*\\}/);\n  if (jsonMatch) {\n    const parsed = JSON.parse(jsonMatch[0]);\n    return {\n      json: {\n        success: true,\n        invoice_data: parsed,\n        processed_at: new Date().toISOString()\n      }\n    };\n  } else {\n    throw new Error('No JSON found in response');\n  }\n} catch (error) {\n  return {\n    json: {\n      success: false,\n      error: error.message,\n      raw_response: response\n    }\n  };\n}"
      },
      "id": "parse-response",
      "name": "Parse Invoice JSON",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [690, 300]
    }
  ],
  "connections": {
    "Upload Invoice Form": {
      "main": [
        [
          {
            "node": "Claude Vision API",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Claude Vision API": {
      "main": [
        [
          {
            "node": "Parse Invoice JSON",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "settings": {
    "executionOrder": "v1"
  },
  "meta": {
    "instanceId": "starter-workflow"
  }
}