Data · Local MCP server

Cortex402

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

What the MCP Registry states

The entry as published to the official MCP Registry (read 2026-10-04), latest version.

Registry name
io.github.Ooak21/cortex402
Version
0.2.0
Status
Active
Category
data
Transport
stdio (local process)
Package
npm
Published
2026-05-05
Updated
2026-05-05
Publisher
Ooak21 (GitHub)
Listed under
Weather MCP servers
Repository
github.com/Ooak21/cortex402
Source
Registry API entry

Packages

RegistryPackageVersionTransportEnvironment variables
npmcortex402-mcp0.2.0stdioCORTEX402_WALLET_PRIVATE_KEY (required, secret), CORTEX402_BASE_URL, CORTEX402_MAX_PAYMENT_USDC

How to connect Cortex402

Cortex402 runs locally from a Node.js package published to the npm registry: cortex402-mcp version 0.2.0. It speaks MCP over stdio, so the client starts it as a program and talks to it through standard input and output. It needs Node.js; clients usually start it with npx — the usual command is npx -y cortex402-mcp@0.2.0. It reads these environment variables: CORTEX402_WALLET_PRIVATE_KEY (required, secret), CORTEX402_BASE_URL and CORTEX402_MAX_PAYMENT_USDC; set them in the client's configuration for this server.

In the mcpServers JSON format that many desktop and editor MCP clients read, the entry looks like this (placeholders in angle brackets):

{
  "mcpServers": {
    "cortex402": {
      "command": "npx",
      "args": [
        "-y",
        "cortex402-mcp@0.2.0"
      ],
      "env": {
        "CORTEX402_WALLET_PRIVATE_KEY": "<secret>",
        "CORTEX402_BASE_URL": "<value>",
        "CORTEX402_MAX_PAYMENT_USDC": "<value>"
      }
    }
  }
}

Derived from the registry entry, not tested here. What the server does, and on what terms, is set by its publisher; check its repository or website before giving it access to your accounts or files. How to add an MCP server to an assistant · Before you connect

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