The latest articles on DEV Community by rakhmad aulad alie (@rakhmad_auladalie_59d4de). https://dev.to/rakhmad_auladalie_59d4de https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F4106506%2Febf3c8a7-2d96-40ee-8af7-9d30719fefa5.png https://dev.to/rakhmad_auladalie_59d4de en rakhmad aulad alie Wed, 02 Sep 2026 16:10:11 +0000 https://dev.to/rakhmad_auladalie_59d4de/building-nexus-gateway-m2m-legal-code-engine-with-polygon-eip-712-free-solidity-security-checker-4el1 https://dev.to/rakhmad_auladalie_59d4de/building-nexus-gateway-m2m-legal-code-engine-with-polygon-eip-712-free-solidity-security-checker-4el1 <h1> Nexus Gateway: Bridging Legal Contracts &amp; Smart Contracts </h1> <p>Smart contract code and off-chain legal contracts are often disconnected. A legal document might state "only the project owner can mint tokens," but if the Solidity code misses an <code>onlyOwner</code> modifier, a breach occurs with zero programmatic enforcement.</p> <p><strong>Nexus Gateway</strong> solves this by using a <strong>Digital Twin v3.1</strong> parser that maps legal clauses directly to Solidity function signatures, visibility, modifiers, and breach conditions.</p> <h2> Key Features </h2> <ol> <li> <p><strong>Free Solidity Security Checker (Dry-Run)</strong></p> <ul> <li>Simulates 7 breach scenarios (BS-001 to BS-007) without registration or API keys.</li> <li>Evaluates deployability, risk levels (Low, Medium, Critical), and actionable recommendations.</li> </ul> </li> <li> <p><strong>Machine-to-Machine (M2M) API Billing</strong></p> <ul> <li>Built on <strong>Polygon PoS</strong> using <strong>EIP-712 pull-payment permits</strong>.</li> <li>No manual subscription management; clients sign off-chain permits, and the gateway executes micro-transactions in USDC.</li> </ul> </li> <li> <p><strong>Legal-Code Mapping</strong></p> <ul> <li>Generates bilingual (English/Indonesian) legal contracts side-by-side with compiled Solidity modules (ERC-20, ERC-721, Escrow).</li> </ul> </li> </ol> <h2> Try the Security Checker Right Now </h2> <p>You can test the dry-run endpoint directly from your terminal using <code>curl</code>:</p> <div class="highlight js-code-highlight"> <pre class="highlight plaintext"><code> bash curl -X POST [https://xibzsthfrbomefnvbicb.supabase.co/functions/v1/hello-world/gateway/dry-run](https://xibzsthfrbomefnvbicb.supabase.co/functions/v1/hello-world/gateway/dry-run) \ -H "Content-Type: application/json" \ -d '{"source_code": "pragma solidity ^0.8.20; contract Token { function mint(address to, uint256 amount) public {} }"}' </code></pre> </div> web3 solidity ai security