๐๐-๐๐จ๐ฐ๐๐ซ๐๐ ๐๐ฎ๐ญ๐จ๐ฆ๐๐ญ๐ข๐จ๐ง: ๐๐จ๐ง๐ง๐๐๐ญ ๐๐ก๐๐ญ๐๐๐ ๐ญ๐จ ๐ง๐๐ง
- Amar Harolikar
- Mar 21
- 3 min read
Updated: 7 days ago
Seamlessly integrate with Python processing, APIs, Databases, Google Apps Script, Sheets and more for real-timeย updates, workflow automation, reports, PDF & decks

ย ย ๐๐ฎ๐ญ๐จ๐ฆ๐๐ญ๐ข๐จ๐ง๐ฌ
n8n's extensive workflow nodes, routing nodes, connectors, and AI nodes make it a powerful tool for automation and apps - AI-enabled or otherwise. Handle processing within n8n or connect to any external system or custom code. Self-hosted version is free - with unlimited executions, workflows, and access to community nodes.
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๐๐จ๐ง๐ง๐๐๐ญ ๐ง๐๐ง ๐ญ๐จ ๐๐ง๐ฒ ๐๐ฌ๐๐ซ ๐๐ง๐ญ๐๐ซ๐๐๐๐
Connect n8n to any UI, including ChatGPT. Can also be easily connected to a custom UI like AI Co-Analyst (React JS) at rex.tigzig.comโฆ or simply use native n8n UI
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๐๐ก๐๐ญ๐๐๐ ๐๐๐ฏ๐๐ง๐ญ๐๐ ๐
Simple to set up, and provides off-the-shelf access to GPT-4o capabilities: AI Agent, Mobile App, Web Search, Realtime Voice, Python Code Interpreter...
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๐๐จ๐ฐ ๐ญ๐จ ๐๐จ๐ง๐ง๐๐๐ญ ๐ง๐๐ง ๐ญ๐จ ๐๐ก๐๐ญ๐๐๐
Update custom actions in Custom GPT using an OpenAPI schema to connect to an n8n workflow. Any LLM /AI coder can generate one โexample schema shared in comments
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๐๐ฌ๐ ๐๐๐ฌ๐๐ฌ
โ ย Automate backend update
Update any backend system accessible via an API. Example shared - Postgres DB / Google Sheets
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โ ย Process with Python with file output passed through
Example: On-the-fly Markdown to PDF via FastAPI server
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โ ย Automate with Google Apps Script
Apps Script enables JavaScript-based processing, deployed as an API endpointโa powerful tool. Example: generate formatted PDF & Slides, then email them out
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โ ย Process and transform data within n8n
Example - simple update via Edit Node. Combined with Code node and Routing nodes, you can do a fairly complex processing within n8n
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โ ย Dynamic database connections
Example shared - connect to any database on-the-fly and review records. Uses a custom FastAPI server - you could also use a n8n Switch node, routing to MySQL/Postgres nodes
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โ ย AI powered content enhancement
Enhance content with LLM + web searches. Example sharedโstructure rough user input into a coherent data row and suggest business use cases
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Note: sharing a small set of common use cases. Also, multiple ways to do these - depends on the use case.
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ย ๐๐ซ๐ฒ ๐ข๐ญย / ๐๐๐ฉ๐ฅ๐ข๐๐๐ญ๐ ๐ข๐ญ
Custom GPT, n8n schema, source code, and resource links in comments. Video has demo + architecture and workflow walkthrough.
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๐๐ฎ๐ข๐ฅ๐ ๐๐ ๐๐จ-๐๐ง๐๐ฅ๐ฒ๐ฌ๐ญ ๐๐ฉ๐ฉ๐ฌ ๐๐จ๐ซ ๐๐ง๐๐ฅ๐ฒ๐ญ๐ข๐๐ฌ
Explore 15+ open-source AI analytics apps at rex.tigzig.comย
๐นAI Co-Analyst ๐๐๐ฏ๐๐ง๐๐๐ ๐๐ง๐๐ฅ๐ฒ๐ฌ๐ข๐ฌย App: https://lnkd.in/g8xPQvb8
๐นAI ๐๐ฎ๐ญ๐จ๐ฆ๐๐ญ๐ข๐จ๐งย Micro App: https://lnkd.in/gxVbCdpv
๐นConnect ๐๐ก๐๐ญ๐๐๐ ๐ญ๐จ ๐๐ฎ๐ฉ๐๐๐๐ฌ๐ย in 10 minutes: https://lnkd.in/g2A9h8f2
๐น๐๐๐๐ฅ๐ญ๐ข๐ฆ๐ ๐๐จ๐ข๐๐ย AI connected to database: https://lnkd.in/g6cT8ZSMย https://lnkd.in/gCT9J_K4
Source Codes & Resources
Custom GPT
Feel free to try out the markdown-to-PDF functionality and Google Sheets updates. Google Sheet available at https://lnkd.in/gVBsgMRq. You can also connect to any remote database by providing DB credentialsโget an instant free Postgres DB at neon.tech.
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n8n Workflow and OpenAPI Schema for Custom GPT
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FastAPI Server: Markdown-to-PDF
No environment variables required. After deployment, you just need to update the URL in the HTTP request node as per the schema shared above.
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FastAPI Server: Database Connection
No environment variables required for simple database connectivity in this workflow. After deployment, you just need to update the URL in the HTTP request node as per the schema shared above.
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Automation with Google Apps Script: Source Code & Video Guide
You can directly jump to the Google Apps Script section. Once deployed, you just need to update the web service URL in the n8n HTTP request node as per the schema shared above.