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Pay-per-call x402 data products on Base mainnet — sanctions, aviation weather, US property.
npx @getmcp/cli add io.github.Ooak21/cortex402Requires Node.js 18+. Community-contributed server. Review source before installing.
CORTEX402_WALLET_PRIVATE_KEYPrivate key (hex, 0x-prefixed) for an EVM wallet on Base mainnet holding USDC. Used to sign EIP-3009 transferWithAuthorization for each call. Easiest funding: Coinbase Wallet → Buy → USDC on Base network → debit card (~$5 covers ~50 calls).
Config file: ~/Library/Application Support/Claude/claude_desktop_config.json
{
"mcpServers": {
"io.github.Ooak21/cortex402": {
"command": "npx",
"args": [
"-y",
"cortex402-mcp"
],
"env": {
"CORTEX402_WALLET_PRIVATE_KEY": "",
"CORTEX402_BASE_URL": "",
"CORTEX402_MAX_PAYMENT_USDC": ""
}
}
}
}