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n8n-workflows/workflows/Query n8n Credentials with AI SQL Agent.json
Eliad Shahar 136eca34eb adding the workflow collection to git
2025-05-14 11:58:29 +03:00

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{
"meta": {
"instanceId": "26ba763460b97c249b82942b23b6384876dfeb9327513332e743c5f6219c2b8e"
},
"nodes": [
{
"id": "382dddd4-da50-49fa-90a2-f7d6d160afdf",
"name": "When clicking \"Test workflow\"",
"type": "n8n-nodes-base.manualTrigger",
"position": [
920,
280
],
"parameters": {},
"typeVersion": 1
},
{
"id": "efa8f415-62f7-43b3-a76a-a2eabf779cb8",
"name": "Map Workflows & Credentials",
"type": "n8n-nodes-base.set",
"position": [
1360,
280
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "0fd19a68-c561-4cc2-94d6-39848977e6d2",
"name": "workflow_id",
"type": "string",
"value": "={{ $json.id }}"
},
{
"id": "a81f9e6f-9c78-4c3d-9b79-e820f8c5ba29",
"name": "workflow_name",
"type": "string",
"value": "={{ $json.name }}"
},
{
"id": "58ab0f2f-7598-48de-bea1-f3373c5731fe",
"name": "credentials",
"type": "array",
"value": "={{ $json.nodes.map(node => node.credentials).compact().reduce((acc,cred) => { const keys = Object.keys(cred); const items = keys.map(key => ({ type: key, ...cred[key] })); acc.push(...items); return acc; }, []) }}"
}
]
}
},
"typeVersion": 3.3
},
{
"id": "9e9b4f9c-12b7-47ba-8cf4-a9818902a538",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
1084,
252
],
"parameters": {
"width": 216,
"height": 299.56273929030715,
"content": "\n\n\n\n\n\n\n\n\n\n\n\n\n\n### \ud83d\udea8Required\nYou'll need an n8n API key. Note: available workflows will be scoped to your key."
},
"typeVersion": 1
},
{
"id": "cf04eff5-12b2-42fb-9089-2d0c992af1b8",
"name": "Save to Database",
"type": "n8n-nodes-base.code",
"position": [
1540,
280
],
"parameters": {
"language": "python",
"pythonCode": "import json\nimport sqlite3\ncon = sqlite3.connect(\"n8n_workflow_credentials.db\")\n\ncur = con.cursor()\ncur.execute(\"CREATE TABLE IF NOT EXISTS n8n_workflow_credentials (workflow_id TEXT PRIMARY KEY, workflow_name TEXT, credentials TEXT);\")\n\nfor item in _input.all():\n cur.execute('INSERT OR REPLACE INTO n8n_workflow_credentials VALUES(?,?,?)', (\n item.json.workflow_id,\n item.json.workflow_name,\n json.dumps(item.json.credentials.to_py())\n ))\n\ncon.commit()\ncon.close()\n\nreturn [{ \"affected_rows\": len(_input.all()) }]"
},
"typeVersion": 2
},
{
"id": "7e32cf83-0498-4666-8677-7fd32eec779c",
"name": "Chat Trigger",
"type": "@n8n/n8n-nodes-langchain.chatTrigger",
"position": [
1880,
280
],
"webhookId": "993ce267-a1e5-4657-a38c-08f86715063d",
"parameters": {},
"typeVersion": 1
},
{
"id": "8c37f2ae-192b-4f98-a6fa-5aabf870e9e0",
"name": "Query Workflow Credentials Database",
"type": "@n8n/n8n-nodes-langchain.toolCode",
"position": [
2320,
440
],
"parameters": {
"name": "query_workflow_credentials_database",
"language": "python",
"pythonCode": "import json\nimport sqlite3\ncon = sqlite3.connect(\"n8n_workflow_credentials.db\")\n\ncur = con.cursor()\nres = cur.execute(query);\n\noutput = json.dumps(res.fetchall())\n\ncon.close()\nreturn output;",
"description": "Call this tool to query the workflow credentials database. The database is already set. The available tables are as follows:\n* n8n_workflow_credentials (workflow_id TEXT PRIMARY KEY, workflow_name TEXT, credentials TEXT);\n * n8n_workflow_credentials.credentials are stored as json string and the app name may be obscured. Prefer querying using the %LIKE% operation for best results.\n\nPass a SQL SELECT query to this tool for the available tables."
},
"typeVersion": 1.1
},
{
"id": "60b2ab16-dc7c-4cb8-a58f-696f721b8d6f",
"name": "OpenAI Chat Model",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
2060,
440
],
"parameters": {
"options": {}
},
"credentials": {
"openAiApi": {
"id": "8gccIjcuf3gvaoEr",
"name": "OpenAi account"
}
},
"typeVersion": 1
},
{
"id": "adf576c1-ddb0-4fef-980c-5b485a3204f2",
"name": "Window Buffer Memory",
"type": "@n8n/n8n-nodes-langchain.memoryBufferWindow",
"position": [
2180,
440
],
"parameters": {},
"typeVersion": 1.2
},
{
"id": "4335b038-3e9f-4173-986d-cabdb87cc0b4",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"position": [
860,
100
],
"parameters": {
"color": 7,
"width": 930.8402221561373,
"height": 488.8805508857059,
"content": "## Step 1. Store Workflows Credential Mappings to Database\n\nWe'll achieve this by querying n8n's built-in API to query all workflows, extract the credentials list from the nodes within and then store them in a SQLite database. Don't worry, the actual credential data won't be exposed! For the database, we'll abuse the fact that the code node is able to create Sqlite databases - however, this is created in memory and will be wiped if the n8n instance is restarted."
},
"typeVersion": 1
},
{
"id": "c1f557ee-1176-4f3e-8431-d162f1a59990",
"name": "Sticky Note2",
"type": "n8n-nodes-base.stickyNote",
"position": [
1820,
100
],
"parameters": {
"color": 7,
"width": 688.6507290693205,
"height": 527.3794193342486,
"content": "## Step 2. Use Agent as Search Interface\n\nInstead of building a form interface like a regular person, we'll just use an AI tools agent who is given aaccess to perform queries on our database. You can ask it things like \"which workflows are using slack + airtable + googlesheets?\""
},
"typeVersion": 1
},
{
"id": "9bdc3fa9-d4a0-4040-bb32-6c76aaca3ad9",
"name": "Workflow Credentials Helper Agent",
"type": "@n8n/n8n-nodes-langchain.agent",
"position": [
2080,
280
],
"parameters": {
"options": {
"systemMessage": "=You help find information on n8n workflow credentials. When user mentions an app, assume they mean the workflow credential for the app.\n* Only if the user requests to provide a link to the workflow, replace $workflow_id with the workflow id in the following url schema: {{ window.location.protocol + '//' + window.location.host }}/workflow/$workflow_id"
}
},
"typeVersion": 1.6
},
{
"id": "ff39f504-9953-47c9-81eb-3146dfd6c8c5",
"name": "Sticky Note4",
"type": "n8n-nodes-base.stickyNote",
"position": [
420,
100
],
"parameters": {
"width": 415.13049730628427,
"height": 347.7398931123371,
"content": "## Try It Out!\n\n### This workflow let's you query workflow credentials using an AI SQL agent. Example use-case could be:\n* \"Which workflows are using Slack and Google Calendar?\"\n* \"Which workflows have AI in their name but are not using openAI?\"\n\n### Run the Steps separately!\n* Step 1 populates a local database\n* Step 2 engages with the chatbot"
},
"typeVersion": 1
},
{
"id": "3db2116c-abde-4856-bd1e-a15e0275477f",
"name": "n8n",
"type": "n8n-nodes-base.n8n",
"position": [
1140,
280
],
"parameters": {
"filters": {},
"requestOptions": {}
},
"credentials": {
"n8nApi": {
"id": "5vELmsVPmK4Bkqkg",
"name": "n8n account"
}
},
"typeVersion": 1
}
],
"pinData": {},
"connections": {
"n8n": {
"main": [
[
{
"node": "Map Workflows & Credentials",
"type": "main",
"index": 0
}
]
]
},
"Chat Trigger": {
"main": [
[
{
"node": "Workflow Credentials Helper Agent",
"type": "main",
"index": 0
}
]
]
},
"OpenAI Chat Model": {
"ai_languageModel": [
[
{
"node": "Workflow Credentials Helper Agent",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Window Buffer Memory": {
"ai_memory": [
[
{
"node": "Workflow Credentials Helper Agent",
"type": "ai_memory",
"index": 0
}
]
]
},
"Map Workflows & Credentials": {
"main": [
[
{
"node": "Save to Database",
"type": "main",
"index": 0
}
]
]
},
"When clicking \"Test workflow\"": {
"main": [
[
{
"node": "n8n",
"type": "main",
"index": 0
}
]
]
},
"Query Workflow Credentials Database": {
"ai_tool": [
[
{
"node": "Workflow Credentials Helper Agent",
"type": "ai_tool",
"index": 0
}
]
]
}
}
}
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