Cortex402 MCP Server

by ooak21io.github.Ooak21/cortex402v0.2.0

Pay-per-call x402 data products on Base mainnet — sanctions, aviation weather, US property.

Node.jsstdioofficial registry

context tax

queued

security

queued

cold start

queued

freshness

Slowing5mo ago

Install Cortex402 MCP server

claude mcp add cortex402 -e CORTEX402_WALLET_PRIVATE_KEY='<cortex402-wallet-private-key>' -- npx -y cortex402-mcp

{
  "mcpServers": {
    "cortex402": {
      "command": "npx",
      "args": [
        "-y",
        "cortex402-mcp"
      ],
      "env": {
        "CORTEX402_WALLET_PRIVATE_KEY": "<cortex402-wallet-private-key>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).

{
  "mcpServers": {
    "cortex402": {
      "command": "npx",
      "args": [
        "-y",
        "cortex402-mcp"
      ],
      "env": {
        "CORTEX402_WALLET_PRIVATE_KEY": "<cortex402-wallet-private-key>"
      }
    }
  }
}

Settings → Developer → Edit Config (claude_desktop_config.json), then restart.

{
  "servers": {
    "cortex402": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "cortex402-mcp"
      ],
      "env": {
        "CORTEX402_WALLET_PRIVATE_KEY": "<cortex402-wallet-private-key>"
      }
    }
  }
}

Add to .vscode/mcp.json in your workspace.

{
  "mcpServers": {
    "cortex402": {
      "command": "npx",
      "args": [
        "-y",
        "cortex402-mcp"
      ],
      "env": {
        "CORTEX402_WALLET_PRIVATE_KEY": "<cortex402-wallet-private-key>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Configuration

Variable	Required	Secret	Description
CORTEX402_WALLET_PRIVATE_KEY	yes	yes	Private 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).
CORTEX402_BASE_URL	—	—	Override the API base URL. Defaults to https://cortex402.vercel.app — only set this for staging or local development.
CORTEX402_MAX_PAYMENT_USDC	—	—	Per-call payment ceiling in USDC. Defaults to 5.00 (covers sanctions $0.50, aviation $0.10, property $2.00 with headroom). Raise if calling other x402 endpoints through this server.

Freshness

Slowing — last maintenance signal 5mo ago. The newest of the signals below sets the band.

Last commit (default branch)
no data · GitHub
Latest release
no data · GitHub
Package published
no data · npm/PyPI
Registry entry updated
2026-05-05 · 5mo ago · official registry · v0.2.0

FAQ

›How do I install the Cortex402 MCP server in Claude Code?

Run: claude mcp add cortex402 -e CORTEX402_WALLET_PRIVATE_KEY='<cortex402-wallet-private-key>' -- npx -y cortex402-mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does Cortex402 require an API key?

Yes. It expects CORTEX402_WALLET_PRIVATE_KEY, of which 1 is a secret.

›Can I use Cortex402 as a remote (hosted) MCP server?

No hosted endpoint is published; it runs locally over stdio.

›Is Cortex402 in the official MCP registry?

Yes, as io.github.Ooak21/cortex402.