# The MCP Workshop: Turning APIs into AI-Ready Tools

> 📌 Slido 📌
> https://app.sli.do/event/fpTwqeYSmDzmRExJqe6yxp

> 共筆請從這裡開始

[toc]

## What LLMs can and cannot do

LLM can:
- Generate text
- Write code
- Author poems
- The assumption is that you use can LLM through an API/SDK

https://trygcp.dev/claim/df25-tp-nak

https://github.com/tpiros/devfest-2025

## Function/Tool Calling
- Augment Knowledge by pulling information from external sources like databasees, APIs, and knowledge bases
- Extend capabilities using external tools for tasks
- Take action through APIs to interact with external systems

[The Importance of Precise Function Declarations for LLMs](https://tpiros.dev/blog/precise-function-declaration-llm/)

## Model Context Protocol
- Open Standard for connecting AI models to tools
- MCP Server
- Exposes tools (+resources, +prompts)
- MCP Client
- Discovers tools (+resources, +prompts)
- e.g. Google CLI, cursor, Winsurf 等工具

### MCP 範例
- Chrome DevTools
- Playwright
- Stripe
- Cloudinary
- And more: https://github.com/mcp

## Demo
demo link : https://github.com/tpiros/devfest-2025

https://tpiros.dev/blog/precise-function-declaration-llm/

npm run demo-1

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## What if we'd like to have 10+ tools?

Some issues arise:
- Degining functions (and function schemas) for OpenAI, Anthropic and Google

### Example MCP servers

* Chrome DevTools
* Playweight
* stripe
* Cloudinary
* and more (https://github.com/mcp)
* tip: source, give me the reason

> But please remember: no AI tool is perfect

### Let's create an MCP server!

[MCP Inspector](https://www.npmjs.com/package/@modelcontextprotocol/inspector)

### Context Rot
- Context "pollution" by MCP servers need to be accounted for
- Single MCP server with a large number of tools
- Increases tokens - token (and cost) efficiency is hampered
- Too many tokens could lead to "context rot".

### Solution
- Use code execution instead of direct tool calls. Treat MCP tools as code APIs the agent can import and call

### WebMCP
https://youtu.be/p1l8nkQAoUw?si=BTlFWXeGyT_IF7RT