BYOAIK — Bring Your Own AI Key: a directory of AI tools that run on your own API key.

Readest

Cross-platform open-source EPUB/PDF reader with built-in translation and BYOK AI reading tools.

Website Source code

Category:

Productivity Tools

Pricing:

Open Source

Open source:

Yes (AGPL-3.0)

Self-hostable:

Yes

Local-first:

Yes

Platforms:

Web, Desktop, Mobile, Self-hosted, Docker

AI providers (bring your own key):

OpenAI, OpenRouter, Groq, Together AI, DeepSeek, Ollama, Custom / OpenAI-compatible

API key storage:

Stored locally on device

Key risk level:

LOW

Trust score:

90/100

Readest is a modern, feature-rich open-source ebook reader (EPUB/PDF/Mobi) built on Next.js and Tauri v2, available on macOS, Windows, Linux, Android, iOS, and the web. It offers immersive reading with annotations, full-text search, TTS, dictionary/Wikipedia lookup, OPDS/Calibre and KOReader sync, and instant in-book translation via DeepL/Yandex. It ships a multi-provider AI subsystem (summaries, embeddings, assistant) where users can bring their own key: the OpenRouterProvider uses the AI SDK's createOpenAICompatible with a user-supplied API key and a configurable base URL that works with any OpenAI-compatible endpoint (OpenAI, OpenRouter, Together, Groq, vLLM/LiteLLM, etc.), plus a local Ollama provider with a configurable base URL. A settings AI panel exposes the API key, base URL, and model picker. A hosted AI Gateway and cloud sync are offered via optional Plus/Pro paid plans.

How your API key is handled

Your API key is stored locally on your device. Requests are sent directly to the AI provider. Because it can be self-hosted, your key never has to touch a third-party backend.

Setup

Open settings, paste your provider API key, choose a model, and start — the key stays on your device.