# Introduction COBI.js is a JavaScript library that allows you to interact with the COBI.bike API. It is designed to be used in the browser, but can also be used in Node.js. This means you have full freedom to use together with any Web-Framwork like React, Angular, Vue etc... This Documentation was written with the version "0.59.0" of the SDK in mind. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://sryvkver.gitbook.io/cobi.bike/introduction.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.