This workflow follows the Agent → Anthropic Chat recipe pattern — see all workflows that pair these two integrations.
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": "n8nCal \u00b7 /command",
"nodes": [
{
"parameters": {
"httpMethod": "POST",
"path": "n8ncal/command",
"responseMode": "responseNode",
"options": {
"allowedOrigins": "*"
}
},
"type": "n8n-nodes-base.webhook",
"typeVersion": 2,
"position": [
-400,
0
],
"id": "75cdbf83-7a20-4af4-92e0-52704e5486d2",
"name": "Webhook \u00b7 /command"
},
{
"parameters": {
"conditions": {
"options": {
"caseSensitive": true,
"typeValidation": "strict",
"version": 2
},
"conditions": [
{
"id": "auth-token-check",
"leftValue": "={{ $json.headers['x-n8ncal-token'] }}",
"rightValue": "={{ $env.N8NCAL_TOKEN }}",
"operator": {
"type": "string",
"operation": "equals"
}
}
],
"combinator": "and"
},
"options": {}
},
"type": "n8n-nodes-base.if",
"typeVersion": 2.2,
"position": [
-180,
0
],
"id": "78db2ead-3e3b-4ef5-ae00-82e9cb7299d0",
"name": "Auth check"
},
{
"parameters": {
"respondWith": "json",
"responseBody": "={\n \"error\": \"unauthorized\"\n}",
"options": {
"responseCode": 401
}
},
"type": "n8n-nodes-base.respondToWebhook",
"typeVersion": 1.1,
"position": [
60,
200
],
"id": "e74b34d2-4ad3-42e2-9608-49c73e9dadf1",
"name": "Respond 401"
},
{
"parameters": {
"promptType": "define",
"text": "={{ $('Webhook \u00b7 /command').item.json.body.text }}",
"options": {
"systemMessage": "=You are n8nCal, a calendar copilot.\n\nUser persona instructions:\n{{ $('Webhook \u00b7 /command').item.json.body.persona || 'Be concise. Default to action over commentary.' }}\n\nGround rules:\n- Current time: {{ $now.toISO() }}\n- User timezone: {{ $('Webhook \u00b7 /command').item.json.body.timezone || 'UTC' }}\n- Prior conversation turns are loaded from memory automatically. Use them.\n- For event creation/modification/deletion: on first mention, DRAFT the change in your reply and ask for confirmation. Do NOT call create_event yet. On the next turn, when the user says confirm/yes/do it, call the tool using the details you proposed earlier (visible in memory).\n- For read intents (\"what's on my calendar\"), call list_events directly and summarize.\n- For reminders, call set_reminder immediately \u2014 they're easy to undo.\n- For notification tests (\"ping me\", \"test\"), call send_notification.\n- Replies under 3 sentences unless asked for detail.\n- Never invent attendees, times, or links. If vague, ask one clarifying question.",
"maxIterations": 5,
"returnIntermediateSteps": false
}
},
"type": "@n8n/n8n-nodes-langchain.agent",
"typeVersion": 2,
"position": [
140,
0
],
"id": "5eafef8e-39d1-449b-8a0c-05d61ee69b27",
"name": "AI Agent"
},
{
"parameters": {
"model": "claude-sonnet-4-6",
"options": {
"maxTokensToSample": 1024,
"temperature": 0.2
}
},
"type": "@n8n/n8n-nodes-langchain.lmChatAnthropic",
"typeVersion": 1.3,
"position": [
-40,
240
],
"id": "c2c730de-df37-4e61-a087-bea6d1b44106",
"name": "Anthropic \u00b7 Sonnet",
"credentials": {
"anthropicApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"sessionIdType": "customKey",
"sessionKey": "={{ $('Webhook \u00b7 /command').item.json.body.conversation_id || 'default' }}",
"tableName": "n8ncal_chat_history",
"contextWindowLength": 12
},
"type": "@n8n/n8n-nodes-langchain.memoryPostgresChat",
"typeVersion": 1.3,
"position": [
120,
240
],
"id": "c79ec751-9598-4a3a-b9f8-f0be104f23da",
"name": "Chat Memory \u00b7 Postgres",
"credentials": {
"postgres": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"name": "list_events",
"description": "List calendar events in a date/time range. Use for any 'what's on my calendar' or 'am I free' question.",
"workflowId": {
"__rl": true,
"value": "REPLACE_WITH_TOOL_LIST_EVENTS_WORKFLOW_ID",
"mode": "id"
},
"specifyInputSchema": true,
"schemaType": "manual",
"inputSchema": "{\n \"type\": \"object\",\n \"properties\": {\n \"from\": { \"type\": \"string\", \"description\": \"ISO 8601 start of range\" },\n \"to\": { \"type\": \"string\", \"description\": \"ISO 8601 end of range\" }\n },\n \"required\": [\"from\", \"to\"]\n}"
},
"type": "@n8n/n8n-nodes-langchain.toolWorkflow",
"typeVersion": 2.2,
"position": [
280,
240
],
"id": "3285a961-c568-4759-be77-33a1e9a7a1cf",
"name": "tool \u00b7 list_events"
},
{
"parameters": {
"name": "create_event",
"description": "Create a calendar event. ONLY call after user confirmation in a previous turn (now visible in memory). Never on first mention.",
"workflowId": {
"__rl": true,
"value": "REPLACE_WITH_TOOL_CREATE_EVENT_WORKFLOW_ID",
"mode": "id"
},
"specifyInputSchema": true,
"schemaType": "manual",
"inputSchema": "{\n \"type\": \"object\",\n \"properties\": {\n \"title\": { \"type\": \"string\" },\n \"start\": { \"type\": \"string\", \"description\": \"ISO 8601\" },\n \"end\": { \"type\": \"string\", \"description\": \"ISO 8601\" },\n \"attendees\":{ \"type\": \"array\", \"items\": { \"type\": \"string\" } },\n \"location\": { \"type\": \"string\" },\n \"notes\": { \"type\": \"string\" }\n },\n \"required\": [\"title\", \"start\", \"end\"]\n}"
},
"type": "@n8n/n8n-nodes-langchain.toolWorkflow",
"typeVersion": 2.2,
"position": [
400,
240
],
"id": "75a54210-e35d-4b2e-9147-a443d9d5881a",
"name": "tool \u00b7 create_event"
},
{
"parameters": {
"name": "set_reminder",
"description": "Set a follow-up reminder. Fires a notification at the due time.",
"workflowId": {
"__rl": true,
"value": "REPLACE_WITH_TOOL_SET_REMINDER_WORKFLOW_ID",
"mode": "id"
},
"specifyInputSchema": true,
"schemaType": "manual",
"inputSchema": "{\n \"type\": \"object\",\n \"properties\": {\n \"text\": { \"type\": \"string\" },\n \"due\": { \"type\": \"string\", \"description\": \"ISO 8601\" },\n \"priority\": { \"type\": \"string\", \"enum\": [\"low\", \"med\", \"high\"] }\n },\n \"required\": [\"text\", \"due\"]\n}"
},
"type": "@n8n/n8n-nodes-langchain.toolWorkflow",
"typeVersion": 2.2,
"position": [
520,
240
],
"id": "ed891bf4-3a1e-4592-948b-536002962b08",
"name": "tool \u00b7 set_reminder"
},
{
"parameters": {
"name": "send_notification",
"description": "Notify the user via iotPush, Telegram, or SMS. Use for confirmations, pings, reminder fires.",
"workflowId": {
"__rl": true,
"value": "REPLACE_WITH_TOOL_NOTIFY_WORKFLOW_ID",
"mode": "id"
},
"specifyInputSchema": true,
"schemaType": "manual",
"inputSchema": "{\n \"type\": \"object\",\n \"properties\": {\n \"channel\": { \"type\": \"string\", \"enum\": [\"iotpush\", \"telegram\", \"sms\", \"all\"] },\n \"title\": { \"type\": \"string\" },\n \"body\": { \"type\": \"string\" },\n \"priority\":{ \"type\": \"string\", \"enum\": [\"low\", \"normal\", \"high\"] }\n },\n \"required\": [\"channel\", \"body\"]\n}"
},
"type": "@n8n/n8n-nodes-langchain.toolWorkflow",
"typeVersion": 2.2,
"position": [
640,
240
],
"id": "d09eb1fe-8e34-4f8e-8021-c0f262bb8ede",
"name": "tool \u00b7 send_notification"
},
{
"parameters": {
"assignments": {
"assignments": [
{
"id": "r",
"name": "reply",
"value": "={{ $json.output }}",
"type": "string"
},
{
"id": "se",
"name": "sideEffects",
"value": "={{ $json.intermediateSteps || [] }}",
"type": "array"
},
{
"id": "cid",
"name": "conversation_id",
"value": "={{ $('Webhook \u00b7 /command').item.json.body.conversation_id || 'default' }}",
"type": "string"
},
{
"id": "ts",
"name": "ts",
"value": "={{ $now.toISO() }}",
"type": "string"
}
]
},
"options": {}
},
"type": "n8n-nodes-base.set",
"typeVersion": 3.4,
"position": [
460,
0
],
"id": "03281f27-3640-43c0-ae2e-7dd996f53875",
"name": "Shape response"
},
{
"parameters": {
"respondWith": "json",
"responseBody": "={{ $json }}",
"options": {}
},
"type": "n8n-nodes-base.respondToWebhook",
"typeVersion": 1.1,
"position": [
680,
0
],
"id": "e6f28bfb-8cf3-4343-b2b9-20321d013486",
"name": "Respond"
}
],
"connections": {
"Webhook \u00b7 /command": {
"main": [
[
{
"node": "Auth check",
"type": "main",
"index": 0
}
]
]
},
"Auth check": {
"main": [
[
{
"node": "AI Agent",
"type": "main",
"index": 0
}
],
[
{
"node": "Respond 401",
"type": "main",
"index": 0
}
]
]
},
"Anthropic \u00b7 Sonnet": {
"ai_languageModel": [
[
{
"node": "AI Agent",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Chat Memory \u00b7 Postgres": {
"ai_memory": [
[
{
"node": "AI Agent",
"type": "ai_memory",
"index": 0
}
]
]
},
"tool \u00b7 list_events": {
"ai_tool": [
[
{
"node": "AI Agent",
"type": "ai_tool",
"index": 0
}
]
]
},
"tool \u00b7 create_event": {
"ai_tool": [
[
{
"node": "AI Agent",
"type": "ai_tool",
"index": 0
}
]
]
},
"tool \u00b7 set_reminder": {
"ai_tool": [
[
{
"node": "AI Agent",
"type": "ai_tool",
"index": 0
}
]
]
},
"tool \u00b7 send_notification": {
"ai_tool": [
[
{
"node": "AI Agent",
"type": "ai_tool",
"index": 0
}
]
]
},
"AI Agent": {
"main": [
[
{
"node": "Shape response",
"type": "main",
"index": 0
}
]
]
},
"Shape response": {
"main": [
[
{
"node": "Respond",
"type": "main",
"index": 0
}
]
]
}
},
"settings": {
"executionOrder": "v1"
},
"tags": [
{
"name": "n8nCal"
}
]
}
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.
anthropicApipostgres
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About this workflow
n8nCal · /command. Uses agent, lmChatAnthropic, memoryPostgresChat, toolWorkflow. Webhook trigger; 12 nodes.
Source: https://github.com/dasecure/n8ncal/blob/dd9a67e052fb7ba52c03770283ea1a95f0595fc2/workflows/01-command.json — original creator credit. Request a take-down →
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