Premium agentic endpoint for customs-duty-calculator-mcp.
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Call this server's tools from your browser. Nothing to install.
Base64-encoded EIP-3009 TransferWithAuthorization signature for x402 V2 settlement on Base Mainnet ($0.18 USDC).
Requests go through mcptry because browsers can't call most MCP servers directly. Header values are sent to the server for that request only and are never stored or logged.
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