> For the complete documentation index, see [llms.txt](https://docs.ordyssey.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ordyssey.com/for-community-developers/open-api.md).

# Open API

## Overview

Ordyssey Open-API is for Ordinals community developers, allowing you to fetch aggregated listings and activities across popular Ordinals marketplaces. Proxy order routing (buy/list/bid) is also enabled as public liquidity infrastructure for Ordinals ecosystem. You can build your own apps, such as trading/arbitrage bot, Telegram/Discord push bot for your community, and much more using the API.

## Get an API Key

To use the Open-API, please feel free to open a ticket in our [**Discord**](https://discord.gg/NyhD2y5mMD) or email us (**<help@ordyssey.com>**), and we will send you a free API Key.

## Standard Auth Header

```
curl --header "Authorization: Token <YOUR_API_KEY_HERE>" https://open-api.ordyssey.com/v1/dex/activities/bitmap
```

## Endpoint

*open-api.ordyssey.com*