What is Mule's Anypoint Platform?

A suite of products:

Mule Anypoint Studio
https://www.mulesoft.com/platform/studio
Build and test APIs and integrations quickly with Anypoint Platform's desktop IDE.

Mule runtime engine
https://www.mulesoft.com/platform/mule
The single, universal engine for connection applications, data, and devices.

Mule API Designer
https://www.mulesoft.com/platform/api/anypoint-designer
Web-based interface for designing, documenting and testing APIs.

Mule Anypoint API Manager
https://www.mulesoft.com/platform/api/manager
Unlock data, monoliths, and microservices securely with API management.

Mule API Gateway capabilites
https://docs.mulesoft.com/api-manager/2.x/api-gateway-capabilities-mule4
Mule Runtime includes an embedded API Gateway. Using this gateway, any user can, for example, apply a basic authentication policy on top of a Mule application, enrich an incoming/outgoing message, or add any other complex capability to an API without having to write any code.

Mule API portal
https://www.mulesoft.com/platform/api/developer-portal
Get developers started in minutes with API access in an easy-to-navigate portal.

Mule Exchange
https://www.mulesoft.com/exchange/
Exchange mart of assets provided by MuleSoft. Additional Connectors and more!

Image: Mule's Anypoint Platform