The latest articles on DEV Community by MrWizardlyLoaf (@mrwizardlyloaf). https://dev.to/mrwizardlyloaf https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F3979269%2F56ad27f1-2e14-4ba8-98c1-5f0c1e1abdad.jpeg https://dev.to/mrwizardlyloaf en MrWizardlyLoaf Thu, 11 Jun 2026 10:01:47 +0000 https://dev.to/mrwizardlyloaf/solguard-on-chain-token-safety-for-solana-ai-trading-agents-e2i https://dev.to/mrwizardlyloaf/solguard-on-chain-token-safety-for-solana-ai-trading-agents-e2i <p>If you're building autonomous trading agents on Solana, you've hit this problem: your agent needs to vet a token <strong>before</strong> it buys — but most agents trade blind. They have no idea whether a token is a rug pull, a honeypot, or has an active mint authority that can dilute holders to zero.</p> <p>I built <strong>SolGuard</strong> to fix this: an MCP server that screens any SPL / Token-2022 token for the common scam patterns, then executes the swap through an MEV-protected route — screening and execution in one place.</p> <h2> What it checks </h2> <ul> <li> <strong>Mint &amp; freeze authority</strong> — is supply still mintable? Can your tokens be frozen in place?</li> <li> <strong>Honeypot detection</strong> — can the token actually be <em>sold</em>, or only bought?</li> <li> <strong>Liquidity &amp; holders</strong> — concentration, LP locks, real depth.</li> <li> <strong>Token-2022 traps</strong> — permanent delegate, transfer hooks, default-frozen state.</li> </ul> <h2> Tools </h2> <ul> <li> <code>verify_token_safety</code> — full on-chain safety audit</li> <li> <code>check_authorities</code> — mint / freeze / Token-2022 trap detection</li> <li> <code>simulate_sell</code> — honeypot check</li> <li> <code>execute_safe_swap</code> — MEV-protected execution</li> </ul> <h2> Connect </h2> <p>SolGuard is listed on the <a href="https://registry.modelcontextprotocol.io" rel="noopener noreferrer">official MCP Registry</a> as <code>io.github.MrWizardlyLoaf/solguard</code>. Remote endpoint, no install:<br> </p> <div class="highlight js-code-highlight"> <pre class="highlight plaintext"><code>https://web-production-58d585.up.railway.app/mcp </code></pre> </div> <p>Or self-host — it's open source (MIT) on GitHub: <strong><a href="https://github.com/MrWizardlyLoaf/solguard-mcp" rel="noopener noreferrer">https://github.com/MrWizardlyLoaf/solguard-mcp</a></strong></p> <h2> Why pre-trade screening matters </h2> <p>A rug pull on Solana often looks fine at the moment of purchase — liquidity is there, the chart is green. The trap is in the <em>authority</em>: a live mint authority lets the deployer print unlimited supply after you buy; a freeze authority can lock your tokens so you can never sell. An autonomous agent that doesn't read these on-chain fields walks straight into it. SolGuard reads them directly and gives a verdict on a fresh launch instead of <code>unknown</code>.</p> <p>Built for Solana trading agents. Feedback welcome.</p> mcp