> For the complete documentation index, see [llms.txt](https://polycruz.gitbook.io/whitepaper/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://polycruz.gitbook.io/whitepaper/backend-b2b-integration/smart-contract-integration-testnet-+-mainnet.md).

# Smart Contract Integration (Testnet + Mainnet)

* **Smart Contract Plug-in**: Connect existing chain contracts via ABI Json format.
* **Chain-Agnostic Deployment**: Deploy across multiple chains (EVM, Solana, etc.).
* **No-Code Audit-ready Contract Deployment**: Built-in best practices and optional audit recommendations.