{ "workflow": { "id": 2347, "name": "Query n8n credentials with AI SQL agent", "views": 5321, "recentViews": 0, "totalViews": 5321, "createdAt": "2024-07-15T20:42:12.214Z", "description": "This n8n workflow is a fun way to query and search over your credentials on your n8n instance.\n\n**Good to know**\nYour credentials should remain safe as this workflow does not decrypt or use any decrypted data.\n\n## Example Usage\n* \"Which workflows are using Slack and Google Calendar?\"\n* \"Which workflows have AI in their name but are not using openAI?\"\n\n## How it works\n* Using the n8n API, it fetches all workflow data on the instance. Workflow data contains references to credentials used so this will be extracted.\n* With some necessary reformatting, the workflows and their credentials metadata are stored to a SQLite database.\n* Next, an AI agent is used with a custom SQL tool that reads the SQLite database created in the previous step. \n* The AI agent is instructed to perform SQL queries against our workflow credential table when asked about credentials by the user.\n\n## Requirements\n* You'll need an n8n API key. Please note that only workflows will be scoped to your API key.\n\n## Customising the workflow\n\nAdd extra table fields to the SQLite database to answer even more complex queries such as:\n* workflow status to differentiate between active and inactive workflows.", "workflow": { "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### 🚨Required\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": "credential-id", "name": "openAiApi Credential" } }, "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": "credential-id", "name": "n8nApi Credential" } }, "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 } ] ] } } }, "lastUpdatedBy": 16, "workflowInfo": { "nodeCount": 13, "nodeTypes": { "n8n-nodes-base.n8n": { "count": 1 }, "n8n-nodes-base.set": { "count": 1 }, "n8n-nodes-base.code": { "count": 1 }, "n8n-nodes-base.stickyNote": { "count": 4 }, "n8n-nodes-base.manualTrigger": { "count": 1 }, "@n8n/n8n-nodes-langchain.agent": { "count": 1 }, "@n8n/n8n-nodes-langchain.toolCode": { "count": 1 }, "@n8n/n8n-nodes-langchain.chatTrigger": { "count": 1 }, "@n8n/n8n-nodes-langchain.lmChatOpenAi": { "count": 1 }, "@n8n/n8n-nodes-langchain.memoryBufferWindow": { "count": 1 } } }, "status": "published", "user": { "name": "Jimleuk", "username": "jimleuk", "bio": "Founder @ Subworkflow.ai - the fastest way to build durable RAG applications.\n\nFreelance AI Automation Engineer based in London, UK. Since 2024, my n8n templates have documented my journey into applied AI and have helped hundreds of businesses and organisations get up to speed with AI automation. Today, I continue to explore use-cases as AI evolves and occasionally upload templates which I find novel and interesting.\n\nSubscribe to the RSS Feed: https://cdn.subworkflow.ai/n8n-templates/rss.xml", "verified": true, "links": [ "https://linkedin.com/in/jimleuk" ], "avatar": "https://gravatar.com/avatar/4ab99e51473df76838beeaac908747f7928c625f869794815cabe34016967d51?r=pg&d=retro&size=200" }, "nodes": [ { "id": 38, "icon": "fa:pen", "name": "n8n-nodes-base.set", "codex": { "data": { "alias": [ "Set", "JS", "JSON", "Filter", "Transform", "Map" ], "resources": { "generic": [ { "url": "https://n8n.io/blog/learn-to-automate-your-factorys-incident-reporting-a-step-by-step-guide/", "icon": "🏭", "label": "Learn to Automate Your Factory's Incident Reporting: A Step by Step Guide" }, { "url": "https://n8n.io/blog/2021-the-year-to-automate-the-new-you-with-n8n/", "icon": "☀️", "label": "2021: The Year to Automate the New You with n8n" }, { "url": 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