# Android > The Android ecosystem's APIs and services for building apps across phones, tablets, wearables, TVs, cars, and XR — spanning the Android platform framework, Jetpack, Google Play services, Firebase, Google Maps, ML Kit, on-device Gemini Nano AI, and the Google Play Developer publishing API. This llms.txt is generated by API Evangelist from the catalog in apis.yml; no official /llms.txt is published on developer.android.com (probed 404 on 2026-06-20). ## APIs - [Android Platform APIs](https://developer.android.com/reference): Core Android framework APIs for building Android applications. - [Google Play Services APIs](https://developers.google.com/android/guides/overview): APIs for integrating Google services into Android apps. - [Firebase Android APIs](https://firebase.google.com/docs/android/setup): Firebase SDKs and APIs for Android app development. - [Google Maps Android API](https://developers.google.com/maps/documentation/android-sdk): Maps, location, and geospatial data for Android apps. - [Android Jetpack APIs](https://developer.android.com/jetpack): Libraries to help developers follow best practices. - [Google Play Developer API](https://developer.android.com/google/play/developer-api): REST APIs for publishing, reporting, purchases, subscriptions, reviews, and orders. - [Google Play Billing API](https://developer.android.com/google/play/billing): In-app purchases and subscriptions. - [Android NDK APIs](https://developer.android.com/ndk): Native (C/C++) development kit. - [Google ML Kit Android APIs](https://developers.google.com/ml-kit): On-device machine learning (text, face, barcode, image labeling). - [Android Health Connect API](https://developer.android.com/health-and-fitness/health-connect): Consolidated health and fitness data platform. - [Android CameraX API](https://developer.android.com/media/camera/camerax): Jetpack camera library. - [Wear OS APIs](https://developer.android.com/wear): Smartwatch and wearable apps. - [Android for Cars APIs](https://developer.android.com/cars): Android Auto and Android Automotive OS. - [Google AdMob Android API](https://developers.google.com/admob): In-app advertising and monetization. - [Android Accessibility APIs](https://developer.android.com/guide/topics/ui/accessibility): Accessible apps and accessibility services. - [Android TV APIs](https://developer.android.com/tv): TV apps with Compose for TV and Leanback. - [Google Play Integrity API](https://developer.android.com/google/play/integrity): Verify genuine apps and devices. - [Android Credential Manager API](https://developer.android.com/identity/credential-manager): Passkeys, passwords, and federated sign-in. - [Gemini Nano On-Device AI API](https://developer.android.com/ai/gemini-nano): On-device generative AI. - [Gemini Developer API for Android](https://developer.android.com/ai/gemini/developer-api): Cloud Gemini for Android apps. ## Specs - [Google Play Developer API OpenAPI 3.1](https://raw.githubusercontent.com/api-evangelist/android/main/openapi/google-play-developer-api.yml): purchases, subscriptions, reviews, and orders resources of v3. - [Postman collection](https://raw.githubusercontent.com/api-evangelist/android/main/collections/google-play-developer-api.postman_collection.json) - [OpenID Connect discovery (accounts.google.com)](https://raw.githubusercontent.com/api-evangelist/android/main/well-known/android-openid-configuration.json): OAuth 2.0 / OIDC issuer for the Play Developer API. ## Docs - [Android Developers](https://developer.android.com/docs) - [API Reference](https://developer.android.com/reference) - [Google Play Developer API](https://developers.google.com/android-publisher) - [Authorization](https://developers.google.com/android-publisher/authorization) - [Client libraries](https://developers.google.com/android-publisher/libraries) - [Release notes](https://developer.android.com/google/play/billing/play-developer-apis-release-notes) - [Android CLI](https://developer.android.com/tools/agents/android-cli) - [Blog](https://android-developers.googleblog.com)