> ## Documentation Index
> Fetch the complete documentation index at: https://docs.stackshift.cloud/llms.txt
> Use this file to discover all available pages before exploring further.

# Customer API Reference

> Versioned customer-facing contracts used by the official StackShift SDKs.

This reference documents customer contracts used by the official SDKs. It is not a mirror of the StackShift backend router.

## Base URLs

* Control plane SDKs: `https://api.stackshift.cloud/api/v1`
* Mail SDKs: `https://api.stackshift.cloud/v1`
* Mobile Observe: the application endpoint is supplied to the Flutter or React Native SDK; the verified route is `/observe/{appKey}/events`.

## Authentication

Control-plane and Mail SDK operations send `Authorization: Bearer <api-key>`. Mobile Observe authenticates with the app key in the route and does not use the control-plane bearer token.

## Static reference policy

These pages are static. No API playground is enabled, so credentials are never persisted or sent by Mintlify and mutations cannot be triggered from the docs site.

## Product modules

* [Assets](/reference/assets) — 117 verified SDK operations.
* [Projects](/reference/projects) — 1 verified SDK operations.
* [StackShift Mail](/reference/mail) — 77 verified SDK operations.
* [Mobile Observe](/reference/mobile) — 1 verified SDK operations.

The generated [SDK coverage report](/reference/sdk-coverage) records the SDK method, request type, response type, route, and source file for every included operation.