---
schema_version: "1"
id: 2d427df6463d88c35b4405212f51eb8030fe945f95a49367f22e893799c12bfb
title: SFMC SDK (Foundation)
collection: developer
version: current
locale: en-us
portal_url: https://docs.salesforce.com/developer/current/en-us/marketing-cloud-mobilepush/engagement_sdk/references/ios-sdk-v11/sfmc-sdk/sfmc-sdk_index.md
canonical_url: https://developer.salesforce.com/docs/marketing/mobile-unified-sdk/references/engagement-mobile-sdk-reference/sfmc-sdk_index.html
source_site: developer.salesforce.com
content_type: documentation
content_hash: 18d8aac21132a0b8a04290bd5be27430a1ff88a1bd47351e303e989ec90e4746
products:
  - Salesforce Engagement SDK
---
# SFMC SDK (Foundation)

Foundation SDK providing core infrastructure for all Marketing Cloud iOS SDKs

## API Reference

### [Classes](https://developer.salesforce.com/docs/marketing/mobile-unified-sdk/references/engagement-mobile-sdk-reference/classes/sfmc-sdk_classes_index.md)

9 classes

### [Protocols](https://developer.salesforce.com/docs/marketing/mobile-unified-sdk/references/engagement-mobile-sdk-reference/protocols/sfmc-sdk_protocols_index.md)

16 protocols

### [Enumerations](https://developer.salesforce.com/docs/marketing/mobile-unified-sdk/references/engagement-mobile-sdk-reference/enums/sfmc-sdk_enums_index.md)

14 enumerations