Voice AI Chatbot with Document Retrieval & Guardrails for Wordpress
描述
分类
🤖 AI & Machine Learning
使用的节点
n8n-nodes-base.waitn8n-nodes-base.webhookn8n-nodes-base.stickyNoten8n-nodes-base.stickyNoten8n-nodes-base.stickyNoten8n-nodes-base.stickyNoten8n-nodes-base.stickyNoten8n-nodes-base.stickyNoten8n-nodes-base.stickyNoten8n-nodes-base.googleDrive
价格免费
浏览量0
最后更新11/28/2025
workflow.json
{
"id": "T6qmIQKNGZtoGSts",
"meta": {
"instanceId": "a4bfc93e975ca233ac45ed7c9227d84cf5a2329310525917adaf3312e10d5462",
"templateCredsSetupCompleted": true
},
"name": "Voice AI Chatbot with Document Retrieval & Guardrails for Wordpress",
"tags": [
{
"id": "oFVn9SpkmyjWZwco",
"name": "Qdrant",
"createdAt": "2024-12-04T16:52:58.409Z",
"updatedAt": "2024-12-04T16:52:58.409Z"
},
{
"id": "paTcf5QZDJsC2vKY",
"name": "OpenAI",
"createdAt": "2024-12-04T16:52:10.768Z",
"updatedAt": "2024-12-04T16:52:10.768Z"
},
{
"id": "vzwUgh7P86cIspCW",
"name": "Test",
"createdAt": "2024-12-04T16:52:25.021Z",
"updatedAt": "2024-12-04T16:52:25.021Z"
}
],
"nodes": [
{
"id": "84dfbed6-1969-4b52-9984-49dfb52f7843",
"name": "OpenAI Chat Model",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
1184,
16
],
"parameters": {
"model": "gpt-5.1",
"options": {}
},
"credentials": {
"openAiApi": {
"id": "4zwP0MSr8zkNvvV9",
"name": "OpenAi account"
}
},
"typeVersion": 1
},
{
"id": "eac2aee4-a8aa-49f8-9246-01de9026ef61",
"name": "Window Buffer Memory",
"type": "@n8n/n8n-nodes-langchain.memoryBufferWindow",
"position": [
1328,
16
],
"parameters": {
"sessionKey": "={{ $('Webhook').item.json.headers[\"session-id\"] }}",
"sessionIdType": "customKey",
"contextWindowLength": 200
},
"typeVersion": 1.3
},
{
"id": "0634abd7-07be-43eb-8499-63b368e43f7e",
"name": "Calculator",
"type": "@n8n/n8n-nodes-langchain.toolCalculator",
"position": [
1472,
16
],
"parameters": {},
"typeVersion": 1
},
{
"id": "87dec119-9774-407d-9512-bb30ae7614cb",
"name": "Qdrant Vector Store",
"type": "@n8n/n8n-nodes-langchain.vectorStoreQdrant",
"position": [
1600,
208
],
"parameters": {
"options": {},
"qdrantCollection": {
"__rl": true,
"mode": "list",
"value": "documents",
"cachedResultName": "documents"
}
},
"credentials": {
"qdrantApi": {
"id": "iyQ6MQiVaF3VMBmt",
"name": "QdrantApi account (Hetzner)"
}
},
"typeVersion": 1
},
{
"id": "58656ef3-bd6a-42f1-b5a5-fa8b8a63479a",
"name": "Embeddings OpenAI",
"type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi",
"position": [
1584,
368
],
"parameters": {
"options": {}
},
"credentials": {
"openAiApi": {
"id": "4zwP0MSr8zkNvvV9",
"name": "OpenAi account"
}
},
"typeVersion": 1.1
},
{
"id": "eb62f6a3-9004-4b3c-b555-290c1804a8ad",
"name": "OpenAI Chat Model1",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
1872,
208
],
"parameters": {
"options": {}
},
"credentials": {
"openAiApi": {
"id": "4zwP0MSr8zkNvvV9",
"name": "OpenAi account"
}
},
"typeVersion": 1
},
{
"id": "e14baaa6-fa70-408c-bfef-63698b56807a",
"name": "Respond to Webhook",
"type": "n8n-nodes-base.respondToWebhook",
"position": [
1808,
-192
],
"parameters": {
"options": {},
"respondWith": "binary"
},
"typeVersion": 1.1
},
{
"id": "c0711c84-945c-43a3-a704-6b7a3399a881",
"name": "Webhook",
"type": "n8n-nodes-base.webhook",
"position": [
208,
128
],
"webhookId": "7de25617-5e89-4a54-b9aa-5a353705ddc4",
"parameters": {
"path": "7de25617-5e89-4a54-b9aa-5a353705ddc4",
"options": {
"allowedOrigins": "*"
},
"httpMethod": "POST",
"responseMode": "responseNode"
},
"typeVersion": 2
},
{
"id": "78e48172-8879-436d-b236-fd233ca0ec35",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
160,
0
],
"parameters": {
"color": 7,
"width": 428,
"height": 528,
"content": "## STEP 4 - Wordpress Agent\nInstall the Wordpress [Voicebot AI Agent plugin](https://n3wstorage.b-cdn.net/n3witalia/voice-chatbot-n8n.zip) and enter the Webhook URL in the plugin settings."
},
"typeVersion": 1
},
{
"id": "d9b56072-ee50-41ff-b5f4-be4694bbee9e",
"name": "Guardrails",
"type": "@n8n/n8n-nodes-langchain.guardrails",
"position": [
672,
128
],
"parameters": {
"text": "={{ $json.text }}",
"guardrails": {
"jailbreak": {
"value": {
"threshold": 0.7
}
}
}
},
"typeVersion": 1
},
{
"id": "0aec07f5-572a-4316-94ca-7b176cf36231",
"name": "OpenAI Chat Model2",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
656,
304
],
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4.1-mini"
},
"options": {},
"builtInTools": {}
},
"credentials": {
"openAiApi": {
"id": "TefveNaDaMERl1hY",
"name": "OpenAi account (Eure)"
}
},
"typeVersion": 1.3
},
{
"id": "d33b2c95-2f32-435a-893e-67daff6f3ffe",
"name": "RAG",
"type": "@n8n/n8n-nodes-langchain.toolVectorStore",
"position": [
1696,
16
],
"parameters": {
"name": "n3witalia_regreat_knowledgebase",
"description": "Retrieve the data about the business"
},
"typeVersion": 1
},
{
"id": "e8f757c1-bf0e-4b7c-9745-04ac6fa0368c",
"name": "When clicking ‘Test workflow’",
"type": "n8n-nodes-base.manualTrigger",
"position": [
-80,
-1120
],
"parameters": {},
"typeVersion": 1
},
{
"id": "890070d2-820f-471b-8cad-fdcd89cacda4",
"name": "Embeddings OpenAI1",
"type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi",
"position": [
1312,
-720
],
"parameters": {
"options": {}
},
"credentials": {
"openAiApi": {
"id": "4zwP0MSr8zkNvvV9",
"name": "OpenAi account"
}
},
"typeVersion": 1.1
},
{
"id": "f5adb8cd-6022-4cde-a9d5-a0b239851951",
"name": "Default Data Loader1",
"type": "@n8n/n8n-nodes-langchain.documentDefaultDataLoader",
"position": [
1456,
-720
],
"parameters": {
"options": {
"metadata": {
"metadataValues": [
{
"name": "file_id",
"value": "={{ $('Get files').item.json.id }}"
},
{
"name": "file_name",
"value": "={{ $('Get files').item.json.name }}"
}
]
}
},
"dataType": "binary",
"binaryMode": "specificField"
},
"typeVersion": 1
},
{
"id": "0388a450-4628-4d22-a26c-3e430ea1410a",
"name": "Create collection",
"type": "n8n-nodes-base.httpRequest",
"position": [
224,
-1248
],
"parameters": {
"url": "http:///collections/test_sparse",
"method": "PUT",
"options": {},
"jsonBody": "{\n \"vectors\": {\n \"size\": 1536,\n \"distance\": \"Cosine\" \n },\n \"sparse_vectors\": {\n \"text\": { }\n },\n \"shard_number\": 1, \n \"replication_factor\": 1, \n \"write_consistency_factor\": 1 \n}",
"sendBody": true,
"sendHeaders": true,
"specifyBody": "json",
"authentication": "genericCredentialType",
"genericAuthType": "httpHeaderAuth",
"headerParameters": {
"parameters": [
{
"name": "Content-Type",
"value": "application/json"
}
]
}
},
"credentials": {
"httpHeaderAuth": {
"id": "qhny6r5ql9wwotpn",
"name": "Qdrant API (Hetzner)"
}
},
"typeVersion": 4.2
},
{
"id": "26cb54cf-cdcf-46f1-89e7-cf942aab3647",
"name": "Recursive Character Text Splitter",
"type": "@n8n/n8n-nodes-langchain.textSplitterRecursiveCharacterTextSplitter",
"position": [
1456,
-528
],
"parameters": {
"options": {},
"chunkSize": 500,
"chunkOverlap": 50
},
"typeVersion": 1
},
{
"id": "60b6d1e3-dff7-4da7-845c-364df343d797",
"name": "Loop Over Items",
"type": "n8n-nodes-base.splitInBatches",
"position": [
800,
-976
],
"parameters": {
"options": {}
},
"typeVersion": 3
},
{
"id": "21bea24b-759e-46cf-b68d-9a33207754ad",
"name": "Clear collection",
"type": "n8n-nodes-base.httpRequest",
"position": [
224,
-976
],
"parameters": {
"url": "http://QDRANTURL/collections/COLLECTION/points/delete",
"method": "POST",
"options": {},
"jsonBody": "{\n \"filter\": {}\n}",
"sendBody": true,
"sendHeaders": true,
"specifyBody": "json",
"authentication": "genericCredentialType",
"genericAuthType": "httpHeaderAuth",
"headerParameters": {
"parameters": [
{
"name": "Content-Type",
"value": "application/json"
}
]
}
},
"credentials": {
"httpHeaderAuth": {
"id": "qhny6r5ql9wwotpn",
"name": "Qdrant API (Hetzner)"
}
},
"typeVersion": 4.2
},
{
"id": "ac2b368c-2a3c-4f2f-8e63-d185da5e3e85",
"name": "Search files",
"type": "n8n-nodes-base.googleDrive",
"position": [
528,
-976
],
"parameters": {
"filter": {
"driveId": {
"__rl": true,
"mode": "list",
"value": "My Drive",
"cachedResultUrl": "https://drive.google.com/drive/my-drive",
"cachedResultName": "My Drive"
},
"folderId": {
"__rl": true,
"mode": "list",
"value": "1RO5ByPhq2yvYLmbapTNC_kKdU5lZd4W5",
"cachedResultUrl": "https://drive.google.com/drive/folders/1RO5ByPhq2yvYLmbapTNC_kKdU5lZd4W5",
"cachedResultName": "Test Negozio"
}
},
"options": {},
"resource": "fileFolder"
},
"credentials": {
"googleDriveOAuth2Api": {
"id": "HEy5EuZkgPZVEa9w",
"name": "Google Drive account (n3w.it)"
}
},
"typeVersion": 3
},
{
"id": "e50584cd-c03c-4423-9c2d-f841223afeaf",
"name": "Wait 5 sec.",
"type": "n8n-nodes-base.wait",
"position": [
1760,
-960
],
"webhookId": "138d379f-88a5-44a1-b45b-1595a05a1eb9",
"parameters": {},
"typeVersion": 1.1
},
{
"id": "286bed0a-8b87-4dbd-970c-05dd8eee54ae",
"name": "Insert file",
"type": "@n8n/n8n-nodes-langchain.vectorStoreQdrant",
"position": [
1376,
-960
],
"parameters": {
"mode": "insert",
"options": {},
"qdrantCollection": {
"__rl": true,
"mode": "list",
"value": "negozio-emporio-verde",
"cachedResultName": "negozio-emporio-verde"
}
},
"credentials": {
"qdrantApi": {
"id": "iyQ6MQiVaF3VMBmt",
"name": "QdrantApi account (Hetzner)"
}
},
"typeVersion": 1
},
{
"id": "0333ad8f-301e-46be-ae14-15d10249b717",
"name": "Get files",
"type": "n8n-nodes-base.googleDrive",
"position": [
1072,
-960
],
"parameters": {
"fileId": {
"__rl": true,
"mode": "id",
"value": "={{ $json.id }}"
},
"options": {
"googleFileConversion": {
"conversion": {
"docsToFormat": "text/plain"
}
}
},
"operation": "download"
},
"credentials": {
"googleDriveOAuth2Api": {
"id": "HEy5EuZkgPZVEa9w",
"name": "Google Drive account (n3w.it)"
}
},
"typeVersion": 3
},
{
"id": "d6b9dccf-a331-426a-9927-4ffcc1c428bf",
"name": "Sticky Note4",
"type": "n8n-nodes-base.stickyNote",
"position": [
128,
-1056
],
"parameters": {
"color": 7,
"width": 348,
"height": 476,
"content": "## STEP 2 - Documents vectorization\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\nDocuments vectorization with Qdrant and Google Drive\nChange:\n- QDRANTURL\n- COLLECTION"
},
"typeVersion": 1
},
{
"id": "2ab1d275-6389-44be-a7b7-f1b87c22552c",
"name": "Sticky Note3",
"type": "n8n-nodes-base.stickyNote",
"position": [
128,
-1440
],
"parameters": {
"color": 7,
"width": 352,
"height": 348,
"content": "## STEP 1 - Create collection\n\nCreate Qdrant Collection\nChange:\n- QDRANTURL\n- COLLECTION"
},
"typeVersion": 1
},
{
"id": "e46c40e6-cef5-4d2e-902e-8c209c85e99e",
"name": "Sticky Note5",
"type": "n8n-nodes-base.stickyNote",
"position": [
496,
-1056
],
"parameters": {
"color": 7,
"width": 1500,
"height": 476,
"content": "## STEP 3 - Add documents in Qdrant collection\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n"
},
"typeVersion": 1
},
{
"id": "1ee62ad7-06d6-44e6-ab5f-ccc77540333b",
"name": "Sticky Note6",
"type": "n8n-nodes-base.stickyNote",
"position": [
608,
0
],
"parameters": {
"color": 7,
"width": 348,
"height": 524,
"content": "## STEP 5 - Guardrail\nAdd Guardrail to prevent jailbrek\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n"
},
"typeVersion": 1
},
{
"id": "ca642fc5-d19f-4117-ab50-9a2858ddfaf0",
"name": "Sticky Note7",
"type": "n8n-nodes-base.stickyNote",
"position": [
1136,
-288
],
"parameters": {
"color": 7,
"width": 908,
"height": 812,
"content": "## STEP 6 - Generate voice\nVoicebot AI agent and generate output audio\n\n\n\n\n\n\n\n\n\n\n\n\n\n"
},
"typeVersion": 1
},
{
"id": "3a86fc93-3718-40c1-bec6-4e557e747f69",
"name": "Voicebot AI Agent",
"type": "@n8n/n8n-nodes-langchain.agent",
"position": [
1264,
-192
],
"parameters": {
"text": "={{ $json.guardrailsInput }}",
"options": {
"systemMessage": "=You are an assistant and your name is Jarvis. You must answer questions regarding the company and be as helpful as possible.\n\nWhen you respond, especially about opening hours, take into account the current date and time {{$now}}.\n\nIf you don’t have answers based on the query asked, you must say that you don’t know."
},
"promptType": "define"
},
"typeVersion": 1.7
},
{
"id": "f9a2730e-3fb1-46fd-a52f-1bbb27dcf57c",
"name": "Generate audio (TTS)",
"type": "@n8n/n8n-nodes-langchain.openAi",
"position": [
1600,
-192
],
"parameters": {
"input": "={{ $json.output }}",
"voice": "onyx",
"options": {},
"resource": "audio"
},
"credentials": {
"openAiApi": {
"id": "4zwP0MSr8zkNvvV9",
"name": "OpenAi account"
}
},
"typeVersion": 1.7
},
{
"id": "e1b57053-a570-47c3-bac6-b9b4fd15d217",
"name": "Generate text (STT)",
"type": "@n8n/n8n-nodes-langchain.openAi",
"position": [
432,
128
],
"parameters": {
"options": {},
"resource": "audio",
"operation": "transcribe",
"binaryPropertyName": "audio"
},
"credentials": {
"openAiApi": {
"id": "4zwP0MSr8zkNvvV9",
"name": "OpenAi account"
}
},
"typeVersion": 1.7
},
{
"id": "36e3ffa5-6e05-4d58-913e-078a3e76f6b0",
"name": "Default response (TTS)",
"type": "@n8n/n8n-nodes-langchain.openAi",
"position": [
1200,
368
],
"parameters": {
"input": "=I’m sorry, but I’m unable to answer this question because it does not comply with our policies.",
"voice": "onyx",
"options": {},
"resource": "audio"
},
"credentials": {
"openAiApi": {
"id": "4zwP0MSr8zkNvvV9",
"name": "OpenAi account"
}
},
"typeVersion": 1.7
},
{
"id": "128b873f-6e1e-4f0a-afc2-29b926a93f39",
"name": "Respond default to Webhook",
"type": "n8n-nodes-base.respondToWebhook",
"position": [
1360,
368
],
"parameters": {
"options": {},
"respondWith": "binary"
},
"typeVersion": 1.1
},
{
"id": "4faa2789-f44a-46db-8389-e42c1288a33b",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"position": [
512,
-1744
],
"parameters": {
"width": 912,
"height": 656,
"content": "# Voice AI Chatbot with Document Retrieval & Guardrails for Wordpress\n\n\nThis workflow implements a **complete Voice AI Chatbot system** for **Wordress** that integrates speech recognition, guardrails for safety, retrieval-augmented generation (RAG), Qdrant vector search, and audio responses. It is designed to be connected to a **WordPress Voicebot AI plugin** through a webhook endpoint.\n\nThis workflow creates a Wordpress voice-enabled AI chatbot that processes audio inputs and provides contextual responses using RAG (Retrieval-Augmented Generation) from a Qdrant vector database.\n\n## **How it works:**\n\nThis workflow powers a voice-enabled AI chatbot for WordPress that interprets audio inputs and generates contextual spoken responses using Retrieval-Augmented Generation (RAG). It begins by converting audio to text with OpenAI STT, filtering unsafe content via a guardrail model. Safe queries are passed to an AI agent equipped with contextual memory, a calculator, and a RAG tool that retrieves company-specific data from a Qdrant vector store. The system then formulates a suitable response, converts it back to audio using OpenAI TTS (“onyx” voice), and returns it to the webhook for real-time playback.\n\n## **Setup steps:**\n\nSet up a Qdrant vector database and clear or create collections before uploading documents. Integrate Google Drive to source business documents, process them into text chunks, and store their embeddings in Qdrant. Configure a webhook to handle audio input and link multiple OpenAI accounts for STT, TTS, moderation, and chat tasks. Establish Qdrant API connections and manage conversation memory via session IDs. Finally, install and configure the WordPress Voicebot AI plugin with the workflow’s webhook URL to enable real-time voice query handling.\n"
},
"typeVersion": 1
}
],
"active": true,
"pinData": {},
"settings": {
"executionOrder": "v1"
},
"versionId": "2dad0709-c252-40b0-9c5e-a76131f3e227",
"connections": {
"RAG": {
"ai_tool": [
[
{
"node": "Voicebot AI Agent",
"type": "ai_tool",
"index": 0
}
]
]
},
"Webhook": {
"main": [
[
{
"node": "Generate text (STT)",
"type": "main",
"index": 0
}
]
]
},
"Get files": {
"main": [
[
{
"node": "Insert file",
"type": "main",
"index": 0
}
]
]
},
"Calculator": {
"ai_tool": [
[
{
"node": "Voicebot AI Agent",
"type": "ai_tool",
"index": 0
}
]
]
},
"Guardrails": {
"main": [
[
{
"node": "Voicebot AI Agent",
"type": "main",
"index": 0
}
],
[
{
"node": "Default response (TTS)",
"type": "main",
"index": 0
}
]
]
},
"Insert file": {
"main": [
[
{
"node": "Wait 5 sec.",
"type": "main",
"index": 0
}
]
]
},
"Wait 5 sec.": {
"main": [
[
{
"node": "Loop Over Items",
"type": "main",
"index": 0
}
]
]
},
"Search files": {
"main": [
[
{
"node": "Loop Over Items",
"type": "main",
"index": 0
}
]
]
},
"Loop Over Items": {
"main": [
[],
[
{
"node": "Get files",
"type": "main",
"index": 0
}
]
]
},
"Clear collection": {
"main": [
[
{
"node": "Search files",
"type": "main",
"index": 0
}
]
]
},
"Embeddings OpenAI": {
"ai_embedding": [
[
{
"node": "Qdrant Vector Store",
"type": "ai_embedding",
"index": 0
}
]
]
},
"OpenAI Chat Model": {
"ai_languageModel": [
[
{
"node": "Voicebot AI Agent",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Voicebot AI Agent": {
"main": [
[
{
"node": "Generate audio (TTS)",
"type": "main",
"index": 0
}
]
]
},
"Embeddings OpenAI1": {
"ai_embedding": [
[
{
"node": "Insert file",
"type": "ai_embedding",
"index": 0
}
]
]
},
"OpenAI Chat Model1": {
"ai_languageModel": [
[
{
"node": "RAG",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"OpenAI Chat Model2": {
"ai_languageModel": [
[
{
"node": "Guardrails",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Generate text (STT)": {
"main": [
[
{
"node": "Guardrails",
"type": "main",
"index": 0
}
]
]
},
"Qdrant Vector Store": {
"ai_vectorStore": [
[
{
"node": "RAG",
"type": "ai_vectorStore",
"index": 0
}
]
]
},
"Default Data Loader1": {
"ai_document": [
[
{
"node": "Insert file",
"type": "ai_document",
"index": 0
}
]
]
},
"Generate audio (TTS)": {
"main": [
[
{
"node": "Respond to Webhook",
"type": "main",
"index": 0
}
]
]
},
"Window Buffer Memory": {
"ai_memory": [
[
{
"node": "Voicebot AI Agent",
"type": "ai_memory",
"index": 0
}
]
]
},
"Default response (TTS)": {
"main": [
[
{
"node": "Respond default to Webhook",
"type": "main",
"index": 0
}
]
]
},
"Recursive Character Text Splitter": {
"ai_textSplitter": [
[
{
"node": "Default Data Loader1",
"type": "ai_textSplitter",
"index": 0
}
]
]
},
"When clicking ‘Test workflow’": {
"main": [
[
{
"node": "Create collection",
"type": "main",
"index": 0
},
{
"node": "Clear collection",
"type": "main",
"index": 0
}
]
]
}
}
}