Daily Summary with Letta

The workflow JSON

Copy or download the full n8n JSON below. Paste it into a new n8n workflow, add your credentials, activate. Full import guide →

{
  "name": "Daily Summary with Letta",
  "nodes": [
    {
      "parameters": {
        "rule": {
          "interval": [
            {
              "field": "cronExpression",
              "expression": "0 9 * * *"
            }
          ]
        }
      },
      "id": "a1b2c3d4-e5f6-7a8b-9c0d-1e2f3a4b5c6d",
      "name": "Schedule Trigger",
      "type": "n8n-nodes-base.scheduleTrigger",
      "typeVersion": 1.2,
      "position": [
        250,
        300
      ]
    },
    {
      "parameters": {
        "jsCode": "// Get yesterday's date\nconst yesterday = new Date();\nyesterday.setDate(yesterday.getDate() - 1);\n\nreturn {\n  date: yesterday.toISOString().split('T')[0],\n  agentId: 'agent-123'\n};"
      },
      "id": "b2c3d4e5-f6a7-8b9c-0d1e-2f3a4b5c6d7e",
      "name": "Prepare Data",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        470,
        300
      ]
    },
    {
      "parameters": {
        "operation": "sendMessage",
        "agentId": "={{ $json.agentId }}",
        "role": "user",
        "message": "Please provide a summary of all our conversations from {{ $json.date }}. Include key topics discussed, decisions made, and any action items.",
        "additionalOptions": {
          "max_steps": 15,
          "enable_thinking": false,
          "use_assistant_message": true
        }
      },
      "id": "c3d4e5f6-a7b8-9c0d-1e2f-3a4b5c6d7e8f",
      "name": "Letta",
      "type": "@letta-ai/n8n-nodes-letta.letta",
      "typeVersion": 1,
      "position": [
        690,
        300
      ],
      "credentials": {
        "lettaApi": {
          "name": "<your credential>"
        }
      }
    },
    {
      "parameters": {
        "jsCode": "// Extract summary from Letta response\nconst messages = $input.item.json.messages || [];\nconst assistantMessage = messages.find(msg => msg.role === 'assistant');\nconst summary = assistantMessage?.text || assistantMessage?.content || 'No summary available';\n\nreturn {\n  date: $('Prepare Data').item.json.date,\n  summary: summary,\n  timestamp: new Date().toISOString()\n};"
      },
      "id": "d4e5f6a7-b8c9-0d1e-2f3a-4b5c6d7e8f9a",
      "name": "Format Summary",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        910,
        300
      ]
    },
    {
      "parameters": {
        "fromEmail": "notifications@yourdomain.com",
        "toEmail": "team@yourdomain.com",
        "subject": "=Daily Summary - {{ $json.date }}",
        "emailFormat": "html",
        "message": "=<h2>Daily Summary for {{ $json.date }}</h2>\n<p>{{ $json.summary }}</p>\n<hr>\n<p><small>Generated at {{ $json.timestamp }}</small></p>",
        "options": {}
      },
      "id": "e5f6a7b8-c9d0-1e2f-3a4b-5c6d7e8f9a0b",
      "name": "Send Email",
      "type": "n8n-nodes-base.emailSend",
      "typeVersion": 2.1,
      "position": [
        1130,
        300
      ],
      "credentials": {
        "smtp": {
          "name": "<your credential>"
        }
      }
    }
  ],
  "connections": {
    "Schedule Trigger": {
      "main": [
        [
          {
            "node": "Prepare Data",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Prepare Data": {
      "main": [
        [
          {
            "node": "Letta",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Letta": {
      "main": [
        [
          {
            "node": "Format Summary",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Format Summary": {
      "main": [
        [
          {
            "node": "Send Email",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "settings": {
    "executionOrder": "v1"
  },
  "staticData": null,
  "tags": [],
  "triggerCount": 0,
  "updatedAt": "2025-01-07T00:00:00.000Z",
  "versionId": "1"
}

Credentials you'll need

Each integration node will prompt for credentials when you import. We strip credential IDs before publishing — you'll add your own.

• lettaApi
• smtp

About this workflow

Daily Summary with Letta. Uses @letta-ai/n8n-nodes-letta, emailSend. Scheduled trigger; 5 nodes.

Source: https://github.com/letta-ai/n8n-nodes-letta/blob/6cf2d1da050c4c0deb9f2a57273f91721cef4936/demo/workflows/scheduled-summary.json — original creator credit. Request a take-down →

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