rev edits

Author: dlepow

articles/api-center/agent-to-agent-overview.md

@@ -31,7 +31,7 @@ Azure API Center provides a centralized platform for discovering, registering, a
 
 ## Register an AI agent
 
-You can register AI agents in API Center similar to how you register other APIs. During registration, specify the API type as **A2A** and fill in details for **Agent Card**, **Agent Skills**, and **Agent Capabilities**.  
+You can register AI agents in API Center similar to how you register other assets such as APIs and MCP servers. During registration, fill in details for **Agent Card**, **Agent Skills**, and **Agent Capabilities**.  
 
 For detailed steps, see [Register agent](register-manage-agents.md#register-agent).
 

articles/api-center/key-concepts.md

@@ -4,7 +4,7 @@ description: Key concepts of Azure API Center. API Center inventories an organiz
 
 ms.service: azure-api-center
 ms.topic: concept-article
-ms.date: 11/15/2024
+ms.date: 02/25/2026
 
 ---
 
@@ -22,7 +22,7 @@ The following diagram shows the main entities and how they relate to each other.
 
 ## API
 
-A top-level logical entity in Azure API Center, an API represents any real-world API that you want to track. An API center can include APIs of any type, including REST, GraphQL, gRPC, SOAP, WebSocket, and Webhook.
+A top-level logical entity in Azure API Center, an API represents any real-world API that you want to track. An API center can include APIs of any type, including REST, GraphQL, gRPC, SOAP, WebSocket, and Webhook. You can also include MCP server and A2A agents in your API center inventory.
 
 You can manage an API in the inventory by any API management solution. For example, use Azure [API Management](../api-management/api-management-key-concepts.md), Apigee API Management, Kong Konnect, MuleSoft API Management, or another platform. An API represented in Azure API Center can also be unmanaged.