> For the complete documentation index, see [llms.txt](https://popwallet-api.gitbook.io/popwallet/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://popwallet-api.gitbook.io/popwallet/about-popwallet.md).

# About PoPwallet

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**This is `alpha`, WorldApp login should be in**[ **staging mode**](https://simulator.worldcoin.org/)
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Currently, we support **Ethereum mainnet only** (will support more chain soon**)**
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## Overview

<figure><img src="/files/7pRnxIvNd7VmS4YUb5O0" alt="" width="188"><figcaption><p>PoPwallet</p></figcaption></figure>

With [**worldapp**](https://worldcoin.org/) authentication, an on-chain user can "**link**" one address per chain in the **PoPwallet** to authenticate that the linked address is the only one in that chain.&#x20;

In the existing crypto ecosystem, there is an invisible war going on between **multi-accounters** and **foundations**. There are a lot of battles going on to stop sybil attacks. For example, [**Paraswap**](https://www.paraswap.io/) has effectively defended against it by using wallet tracing. ([**ref.**](https://decrypt.co/86509/paraswap-just-rewrote-the-rules-on-airdops)*)*&#x20;

<figure><img src="/files/jhD1tg973grOg4U12FPz" alt=""><figcaption><p>Transaction map of metasleuth</p></figcaption></figure>

In response, **multi-accounters** are referring to tools like [**metasleuth**](https://metasleuth.io/) to bypass it, and even checking transaction paths to hide the origin of tokens by sending Ethereum from different **CEX**. As this battle continues, the labor and computing resource drain of increasingly complex transactions will increase. For now, the best way to prevent it is not captcha, not a bunch of web-2 authentication, but [**Worldapp**](https://worldcoin.org/).&#x20;

<figure><img src="/files/t0c3Io7kSJFFxJCbmmi4" alt=""><figcaption><p>Worldcoin ORB</p></figcaption></figure>

A worldapp is an **unique**, biometrically authenticated proof of personhood that can't be easily replicated.&#x20;

<figure><img src="/files/E30QQsKHXZIPcnhLqIzw" alt=""><figcaption><p>PoPwallet dapp</p></figcaption></figure>

**We can simplify authentication between dapps and on-chain users**. Users don't need to authenticate through the app every time they access another dapp, and the dapp only needs to verify that the address is authenticated using our API **without any transactions**. It's incredibly **simple & fast** protocol for providers and users alike.

The difference between our project and POAP is that it cannot be traded and cannot be migrated. **Users can assign an address to each chainid** permanentl&#x79;**.** (with a wallet connection, of course!!) This should be linked very **carefully** and in most cases **irreversibly** (unlinking it for reasons like lost mnemonics would be a huge effort).

\
\&#xNAN;*`In other words`**`, PoPwallet is anti-multi-wallet protocol!`***

## Quick links

{% content-ref url="/pages/uyzgFdLx8VInqAj419hE" %}
[Listup](/popwallet/api/listup.md)
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{% content-ref url="/pages/zwfZY4ArLurEQBfdmz4E" %}
[API Common Guide](/popwallet/api/api-common-guide.md)
{% endcontent-ref %}