Webhook to Sub-Process Execution Bridge

## Try It Out!
### This n8n demonstrates how to build a simple Youtube Search MCP server to look up videos on Youtube and download their transcripts for research purposes.

### How it works
* A MCP server trigger is used and connected to 3 custom workflow tools: Youtube Search, Youtube Transcripts and Usage Reports.
* Both Youtube tools use an external scraping service called [APIFY.com]({{ $env.API_BASE_URL }} This is my preference as it's a much simpler interface and there are no rate limits.  
* The Youtube Search fetches 10 results based on the user's query.
* The Youtube Transcripts downloads the subtitles from one or more given urls.
* The usage reports pulls in your monthly [APIFY.com]({{ $env.API_BASE_URL }} monthly spending and limits as a way to check your account.

### How to use
* This Apify Youtube MCP server allows any compatible MCP client to research youtube videos for any desired topic. An Apify account is required however to connect and use the service.
* Connect your MCP client by following the n8n guidelines here - {{ $env.WEBHOOK_URL }}
* Alternatively, connect any n8n AI agent with the MCP client tool.
* Try the following queries in your MCP client:
  * "what is MCP?"
  * "How can I use MCP in n8n?"
  * "How can I use Apify's official MCP server?"

### Requirements
* [APIFY.com]({{ $env.API_BASE_URL }} for Youtube Scraping. This is a paid service but there is a $5 free tier which is ample for this template.
* MCP Client or Agent for usage such as Claude Desktop - {{ $env.WEBHOOK_URL }}

### Customising this workflow
* Add as many [APIFY.com]({{ $env.API_BASE_URL }} actors as required for your use-case or users. Consider using Apify's official MCP server for 4000+ available tools.
* Remember to set the MCP server to require credentials before going to production and sharing this MCP server with others!