\n ![\"Chain](\"${safeTopupUrl}/assets/logo.png\")
\n
\n\n\n\n\nFund your wallet with USDC on Base
\n${qrSvg}
\n \n
\n ${safeWalletAddress}
\n Click to copy address
\n Base Network · USDC
\n Current balance: -- USDC
Gas balance: -- ETH
Base ETH is used for one-time payment setup gas.
\n
\n\n\n\n`;\n}\n","import {\n generateArtifactHtml,\n getTopupUrl as getCopiedTopupUrl,\n startTopupServer as startCopiedTopupServer,\n} from './mcp-proxy/topup-server.js'\nimport { createServer, type Server, type ServerResponse } from 'node:http'\nimport { isAddress } from 'viem'\nimport type { PaymentWalletAccount } from './tools.js'\n\ninterface ArtifactServerState {\n address: string\n assetServerUrl: string\n server: Server\n url: string\n}\n\nlet artifactServerState: ArtifactServerState | null = null\nconst REQUEST_TARGET_BASE = 'http://localhost'\n\nclass ProxyRequestError extends Error {\n status: number\n\n constructor(status: number, message: string) {\n super(message)\n this.name = 'ProxyRequestError'\n this.status = status\n }\n}\n\ninterface NormalizedProxyTarget {\n pathAndSearch: string\n pathname: string\n}\n\nfunction toWalletAddress(account: PaymentWalletAccount | string): string {\n const address = typeof account === 'string' ? account : account.address\n if (!isAddress(address)) {\n throw new Error('Wallet address must be a valid 0x-prefixed 20-byte EVM address')\n }\n return address\n}\n\nfunction send(res: ServerResponse, status: number, body: string | Buffer, contentType: string): void {\n res.writeHead(status, {\n 'content-type': contentType,\n 'cache-control': 'no-store',\n 'access-control-allow-origin': '*',\n })\n res.end(body)\n}\n\nfunction normalizeProxyTarget(reqUrl: string): NormalizedProxyTarget {\n if (!reqUrl.startsWith('/') || reqUrl.startsWith('//')) {\n throw new ProxyRequestError(400, 'Proxy request target must be an origin-form path')\n }\n\n const parsed = new URL(reqUrl, REQUEST_TARGET_BASE)\n if (parsed.origin !== REQUEST_TARGET_BASE) {\n throw new ProxyRequestError(400, 'Absolute and protocol-relative proxy targets are not allowed')\n }\n\n let decodedPathname: string\n try {\n decodedPathname = decodeURIComponent(parsed.pathname)\n } catch {\n throw new ProxyRequestError(400, 'Proxy request target contains invalid encoding')\n }\n\n if (decodedPathname.startsWith('//') || /^\\/[a-z][a-z0-9+.-]*:\\/\\//i.test(decodedPathname)) {\n throw new ProxyRequestError(400, 'Encoded host override targets are not allowed')\n }\n\n return {\n pathAndSearch: `${parsed.pathname}${parsed.search}`,\n pathname: parsed.pathname,\n }\n}\n\nasync function proxyToCopiedServer(\n proxyTarget: NormalizedProxyTarget,\n res: ServerResponse,\n assetServerUrl: string,\n): Promise\n
\n\n Chain Insights
\nFund your wallet to use blockchain intelligence tools
\n\n \n\n
\n\n \n
\n\n ${safeWalletAddress}\n \n \n \n Base Network · USDC\n
\n\n \n Current balance\n —USDC\n
\n \n Gas balance\n —ETH\n
\n Base ETH is used for one-time payment setup gas.
\n\n \nSend Base USDC to the wallet address above.
\n