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

# Caishen SDK

<figure><img src="/files/RyAh3MRHltbrA4zJgOuM" alt=""><figcaption></figcaption></figure>

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The Caishen SDK provides developers with seamless access to **unlimited** multi-chain crypto wallets. It offers a unified interface for interacting with various blockchain networks and managing crypto assets.

## Why Caishen?

Creating wallets or agents for your users traditionally requires you to pay into SaaS, with monthly subscriptions, additional per wallet fees, and limited support. Here's what Caishen offers:

* Unlimited wallets without the need for managing sensitive private keys
* Multi-chain support for EVM, Bitcoin, Solana, SUI, and XRP
* Cash, for agent-to-agent gasless payments and global stablecoin remittance

## Pricing

<figure><img src="/files/MpxpDvVbCv9dNRlLtBOr" alt=""><figcaption><p>Look familiar? Not with Caishen! Try it out for free today with zero limitations!</p></figcaption></figure>

## **It's Free.**&#x20;

We earn fees when developers choose to use our swaps, which contain our referral ID. But feel free to leave a tip!\ <br>