Kx402

Overview

Kx402 is a Model Context Protocol (MCP) server: Kaspa x402 agent payer — pay x402 v2 services on Kaspa (KAS) per call, no account or API key. In practice that means any MCP-compatible AI assistant can call Kx402's tools directly — the model decides when to use them in a conversation or agent run.

It runs locally: the npm package kx402 speaks MCP over stdio on your machine. Configuration happens through environment variables — you'll need KASPA_X402_KASPA_WASM_MODULE, KASPA_X402_FUNDING_WALLET. The current release is v0.1.1, published under the MIT license, with source at Kali123411/kx402 on GitHub.

Kx402 is listed under AI & Agents on mcp.site and works with any MCP client — Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed and the rest of the ecosystem — using the install snippets below. If you maintain Kx402 for Kali123411, claim this listing to verify ownership, earn the Verified badge, and keep the details current.

Installation

// claude_desktop_config.json
{
  "mcpServers": {
    "kx402": {
      "command": "npx",
      "args": [
        "-y",
        "kx402"
      ],
      "env": {
        "KASPA_X402_KASPA_WASM_MODULE": "<kaspa-x402-kaspa-wasm-module>",
        "KASPA_X402_FUNDING_WALLET": "<kaspa-x402-funding-wallet>"
      }
    }
  }
}

Requires KASPA_X402_KASPA_WASM_MODULE, KASPA_X402_FUNDING_WALLET