eaccmk/5-well-n-less-known-mcp-use-cases.md

## 5-well-n-less-known-mcp-use-cases.md

      
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              5-well-n-less-known-mcp-use-cases.md
            
          
    Well-Known MCP Concepts


Concept
Definition
Example Use Case
Reference Link


Tool Invocation
AI agent calls external APIs or tools in a standardized way.
An agent fetches invoice details by calling an accounting API via MCP.
Merge.dev


Session Memory
Persistence of conversational context across steps or platforms.
User pauses a product return on mobile, resumes later on web with all context preserved.
ActivePieces


Cross-Platform Context Sharing
Transfer of history, context, and tasks across devices/apps.
User starts booking a flight in mobile, changes seat via voice assistant—context seamlessly moves.
AWS


Enterprise System Integration
Unified connectivity to ERPs, CRMs, HR, and more via MCP.
Sales agent merges account data from Salesforce and Oracle ERP in one query.
ActivePieces


Multi-Modal Decision Support
Combining real-time and historical data sources through MCP.
Factory sensors report vibration; MCP agent accesses machine data then schedules maintenance.
ActivePieces


Less-Known MCP Concepts


Concept
Definition
Example Use Case
Reference Link


Client ID Metadata Documents
Document-based trust for clients and servers with no prior relationship.
A 3rd-party tool authenticates with a cloud service using a metadata document in the MCP handshake.
Descope


Secure Elicitation
Enhanced protocol for securely gathering sensitive info.
Payment provider linked via secure MCP authentication link, not exposed in chat.
Descope


Sampling Requests
Server requests client LLM to summarize or generate, not just call tools.
Code review server asks client LLM for summary of changes.
Descope


Ad Hoc Data Lookups
On-demand, live retrieval from diverse sources using MCP.
Agent instantly queries ERP if PO number exists before invoice approval.
Merge.dev


Registry and Trust Management
Centralized registration and discovery of MCP servers/tools.
Enterprise platform auto-verifies and lists new AI tools for integration, ensuring secure access.
ActivePieces
Concept	Definition	Example Use Case	Reference Link
Tool Invocation	AI agent calls external APIs or tools in a standardized way.	An agent fetches invoice details by calling an accounting API via MCP.	Merge.dev
Session Memory	Persistence of conversational context across steps or platforms.	User pauses a product return on mobile, resumes later on web with all context preserved.	ActivePieces
Cross-Platform Context Sharing	Transfer of history, context, and tasks across devices/apps.	User starts booking a flight in mobile, changes seat via voice assistant—context seamlessly moves.	AWS
Enterprise System Integration	Unified connectivity to ERPs, CRMs, HR, and more via MCP.	Sales agent merges account data from Salesforce and Oracle ERP in one query.	ActivePieces
Multi-Modal Decision Support	Combining real-time and historical data sources through MCP.	Factory sensors report vibration; MCP agent accesses machine data then schedules maintenance.	ActivePieces
Concept	Definition	Example Use Case	Reference Link
Client ID Metadata Documents	Document-based trust for clients and servers with no prior relationship.	A 3rd-party tool authenticates with a cloud service using a metadata document in the MCP handshake.	Descope
Secure Elicitation	Enhanced protocol for securely gathering sensitive info.	Payment provider linked via secure MCP authentication link, not exposed in chat.	Descope
Sampling Requests	Server requests client LLM to summarize or generate, not just call tools.	Code review server asks client LLM for summary of changes.	Descope
Ad Hoc Data Lookups	On-demand, live retrieval from diverse sources using MCP.	Agent instantly queries ERP if PO number exists before invoice approval.	Merge.dev
Registry and Trust Management	Centralized registration and discovery of MCP servers/tools.	Enterprise platform auto-verifies and lists new AI tools for integration, ensuring secure access.	ActivePieces