Top 17 Kotlin API Projects

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1. Komga

   1 76 5,087 9.6 Kotlin

   Media server for comics/mangas/BDs/magazines/eBooks with API, OPDS, Kobo Sync and KOReader Sync support

   

   Project mention: Komga PDF Viewer on QNAP NAS | dev.to | 2024-07-20

2. InfluxDB

   www.influxdata.com featured

   InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.

   

3. NotyKT 🖊️

   2 2 1,741 9.5 Kotlin

   📒 NotyKT is a complete 💎Kotlin-stack (Backend + Android) 📱 application built to demonstrate the use of Modern development tools with best practices implementation🦸.

   

4. openai-kotlin

   3 3 1,737 7.5 Kotlin

   OpenAI API client for Kotlin with multiplatform and coroutines capabilities.

   

5. sandwich

   4 3 1,675 9.0 Kotlin

   🥪 Sandwich is an adaptable and lightweight sealed API library designed for handling API responses and exceptions in Kotlin for Retrofit, Ktor, and Kotlin Multiplatform.

   

6. material-chip-view

   5 0 1,350 3.2 Kotlin

   Material Chip view. Can be used as tags for categories, contacts or creating text clouds

   

7. zally

   6 2 926 5.1 Kotlin

   A minimalistic, simple-to-use API linter

   

8. android-sms-gateway

   7 1 539 8.8 Kotlin

   The SMS Gateway for Android™ app enables sending and receiving SMS messages through an API that can be accessed directly on the device or via a cloud server when direct device access is not possible.

   

   Project mention: Show HN: Text an LLM at And61493035885 | news.ycombinator.com | 2025-03-16

   I put together this basic service running on an Android phone with a cheap prepaid SIM that supports "unlimited SMS to 20 countries". I considered alternatives like Twilio and Telnyx, but at ~5c per SMS sent or received in Australia, the SMS costs would rack up faster than the LLM costs! Of course, this comes at the risk the carrier disconnects my service.

   I explain it more in the blog post, but the service is just a basic node server that sends the LLM calls to DeepInfra running Llama 3.1 8B. The node server runs in Termux on the phone receiving the SMS, and is relayed to the node server by SMS Gateway for Android[1].

   Tip: you can text "CLEAR" to clear all your past messages from the database so you can start a new conversation.

   [1] https://github.com/capcom6/android-sms-gateway/

9. Stream

   getstream.io featured

   Stream - Scalable APIs for Chat, Feeds, Moderation, & Video. Stream helps developers build engaging apps that scale to millions with performant and flexible Chat, Feeds, Moderation, and Video APIs and SDKs powered by a global edge network and enterprise-grade infrastructure.

   

10. UnifiedMetrics

    8 2 481 3.4 Kotlin

    Fully-featured metrics collection agent for Minecraft servers. Supports Prometheus and InfluxDB. Dashboard included out-of-box.

    

11. JRAW

    9 7 358 0.0 Kotlin

    The Java Reddit API Wrapper

    

12. Kanary

    10 0 329 0.0 Kotlin

    A minimalist web framework for building REST APIs in Kotlin/Java.

    

13. Kotlin Spotify Web API

    11 3 204 6.6 Kotlin

    Spotify Web API wrapper for Kotlin, Java, JS, and Native - Targets JVM, Android, JS (browser), Native (Desktop), and Apple tvOS/iOS. Includes a Spotify Web Playback SDK wrapper for Kotlin/JS, and a spotify-auth wrapper for Kotlin/Android.

    

14. Gamebaaz

    12 6 96 4.1 Kotlin

    A full-stack application showing the power 💪 of KOTLIN. Entire android app + backend Apis written in Kotlin 🔥

    

15. cross-device-sdk

    13 1 95 10.0 Kotlin

    The Cross device SDK allows developers to build rich multi-device experiences with a simple and intuitive set of APIs

    

16. ChatGPT-Java-API

    14 1 70 6.7 Kotlin

    Unofficial Java API supporting Chat, Assistants, and more!

    

17. http-request-kotlin

    15 1 11 10.0 Kotlin

    🌐 A tiny http client for Kotlin/Android. Only 90 lines of code.

    

18. sc-api-kt

    16 1 1 10.0 Kotlin

    Stalcraft API implementation in Kotlin

    

19. ungh-kt

    17 1 0 2.7 Kotlin

    Unofficial Kotlin driver for the ungh api

    

20. SaaSHub

    www.saashub.com featured

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

    

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• A note from our sponsor - InfluxDB
  www.influxdata.com | 15 Jul 2025

  InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now. Learn more →

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Sponsored

InfluxDB – Built for High-Performance Time Series Workloads

InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.

www.influxdata.com

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