Problem: Claude Can't See Your Data
Claude Lives in a Bubble
Why plugins alone are not enough for real-time data access
In the Claude Plugins course, you learned how to create powerful automation workflows. Skills tell Claude how to do things, commands let you trigger those workflows, and the whole system runs smoothly. But there is a fundamental limitation we need to address.
The Core Problem
Claude does not know what is in your CRM right now. It does not know your latest orders, your inventory levels, or which customers have not been contacted in 30 days. Without real-time data access, Claude is working blind.
What Plugins Can and Cannot Do
Skills
Define expertise — how to write a blog post, how to create a campaign, how to manage contacts.
Commands
Trigger those skills — /create-campaign, /write-blog — giving users quick access to workflows.
References
Provide context — API docs, SEO guidelines, templates that Claude can read at conversation start.
Static Knowledge Only
All of this is static knowledge. The plugin tells Claude the recipe, but it cannot fetch the ingredients from your kitchen in real-time.
A Real-World Example
Imagine you have a VaryShop CRM plugin. The skill says "to create a contact, call the Odoo XML-RPC API." But Claude needs to:
Check Existing Contacts
Verify if the contact already exists in Odoo before creating a duplicate.
Find Related Orders
Query the database for any orders linked to this customer.
Look Up Templates
Access the latest email template from the current data, not a cached copy.
Without an MCP server, Claude can execute scripts that call APIs — but it cannot interactively query and respond to live data. That is the gap MCP servers fill.
Three Types of AI Data Access
| Method | When | Example |
|---|---|---|
| Training data | Built into the model | General knowledge about Python syntax |
| Plugin references | Loaded at conversation start | Your API docs, SEO guidelines |
| MCP server | Real-time, on-demand | Current customer list, live inventory |
The Third Layer
MCP servers are the third layer — they give Claude eyes and hands into your actual systems, not just instructions about how those systems work.
When Do You Need an MCP Server?
Plugin Only
You need Claude to generate content, write code, or follow a workflow with static rules. No live data needed.
Plugin + MCP
You need Claude to read/write data from external systems during the conversation. Live lookups required.
What We Will Build
In this course, you will build a real MCP server that connects Claude to external data. By the end, Claude will not just know how to work with your systems — it will be able to actually talk to them.
There are no comments for now.