Router Desk

HomeIsekai Zero

Isekai Zero

OpenRouter’s listing describes Isekai Zero as AI adventures with characters you travel with. The app is not hosted on this site.

Updated 2026-09-27

The app page is at openrouter.ai/apps/isekai-zero. The blurb on 27 Sep 2026 was “AI adventures. Travel with your favorite characters.” Like Chub and Janitor, it is a third-party client. OpenRouter records token volume for the listing and can be the model provider if the app asks for a key.

Sign in on Isekai Zero’s own site, which the OpenRouter page links as Visit. If the app accepts a custom model, the OpenRouter base URL is https://openrouter.ai/api/v1. A story that runs for many turns needs a long context. MythoMax’s 8K window will drop early chapters. A Flash or Qwen slug holds more.

Router Desk does not run the adventure, store characters, or take the OpenRouter key.

Questions

What is Isekai Zero?

An AI adventure app listed on OpenRouter. You play it on Isekai Zero’s site.

Does OpenRouter include the app in the credit price?

OpenRouter bills the model slug. The app may have its own account on top.

Where is the listing?

https://openrouter.ai/apps/isekai-zero

Related

  • Chub AI

    Chub AI is a third-party character app listed on OpenRouter. You bring an API key. This site does not host Chub chats or sell a Chub login.

  • AI for roleplay

    Roleplay on OpenRouter is a model choice: context length, price, and whether the card is written for fiction. Longer chats need a bigger window.

  • Janitor AI and OpenRouter

    Janitor AI can use OpenRouter as an OpenAI-compatible API. The base URL is https://openrouter.ai/api/v1. That is the proxy. It is not a VPN.

  • OpenRouter API URL

    The OpenRouter base URL is https://openrouter.ai/api/v1. Chat calls go to /chat/completions with a Bearer key.

Sources