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

# Guides

Practical, copy-pasteable recipes for the most common Crypto Processing tasks in Java.

<table data-view="cards"><thead><tr><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><strong>📥 Accept crypto payments</strong></td><td>Create PayIn invoices and read deposits.</td><td><a href="/pages/7CgsvoPXIdKeBMkBTnRK">/pages/7CgsvoPXIdKeBMkBTnRK</a></td></tr><tr><td><strong>💸 Send a payout</strong></td><td>Estimate, execute idempotently, and confirm.</td><td><a href="/pages/7ekX77JXwiCzlr2OsBSJ">/pages/7ekX77JXwiCzlr2OsBSJ</a></td></tr><tr><td><strong>📦 Mass payouts</strong></td><td>Up to 50 recipients in one signed request.</td><td><a href="/pages/5UbuUpe65sK6O1k0Hw9s">/pages/5UbuUpe65sK6O1k0Hw9s</a></td></tr><tr><td><strong>✍️ Sign &#x26; execute</strong></td><td>Two-phase signing for arbitrary transactions.</td><td><a href="/pages/knusnSnzolpXiYyBlitE">/pages/knusnSnzolpXiYyBlitE</a></td></tr><tr><td><strong>🧩 Contract calls</strong></td><td>EVM / TRON ABI and Solana Anchor calls.</td><td><a href="/pages/9ocp6xqQDeXIgDWWURhH">/pages/9ocp6xqQDeXIgDWWURhH</a></td></tr><tr><td><strong>💎 TON transfers</strong></td><td>Jetton, NFT, and comment transfers.</td><td><a href="/pages/LlFuoXiNSfJhi8WImJKs">/pages/LlFuoXiNSfJhi8WImJKs</a></td></tr><tr><td><strong>👛 Wallets &#x26; RSA</strong></td><td>Generate wallets and decrypt private keys.</td><td><a href="/pages/2vplYtRfUXL9wZI8ZfdR">/pages/2vplYtRfUXL9wZI8ZfdR</a></td></tr><tr><td><strong>📡 Webhooks</strong></td><td>Verify signatures and handle typed events.</td><td><a href="/pages/qpn9oddppaoWhjgtQ8I1">/pages/qpn9oddppaoWhjgtQ8I1</a></td></tr></tbody></table>