Kx402 MCP Server

by kali123411 Your server? Claim it

local only

Kx402 runs on your own machine — the client starts it, so there is no endpoint to ping. 33 installs a week from npm. Last commit 22 Jul 2026.

Kaspa x402 agent payer — pay x402 v2 services on Kaspa (KAS) per call, no account or API key

Installs per day peak 248 · avg 11 · -87% w/w

a month agotoday

Installs / week

npm · kx402

Stars

0 open issues

22 Jul 2026

Last commit

0 releases in 90 days

MIT

License

JavaScript

Nothing serious here today

Today is the operative word: we check Kx402 every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add kx402 -- npx -y kx402

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "kx402": {
      "args": [
        "-y",
        "kx402"
      ],
      "command": "npx"
    }
  }
}

~/.codex/config.toml

[mcp_servers.kx402]
command = "npx"
args = ["-y", "kx402"]

.cursor/mcp.json

{
  "mcpServers": {
    "kx402": {
      "args": [
        "-y",
        "kx402"
      ],
      "command": "npx"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "kx402": {
      "args": [
        "-y",
        "kx402"
      ],
      "command": "npx"
    }
  }
}

This one needs environment variables set before it will start: KASPA_X402_KASPA_WASM_MODULE (Path to the rusty-kaspa v2.0.0 nodejs WASM SDK (kaspa.js). Get it with the repo's `npm run fetch-sdk`.), KASPA_X402_FUNDING_WALLET (Funding key: wallet-key:<path> to a 0600 file holding a 64-hex private key, or a raw 64-hex key.), KASPA_X402_NETWORK (kaspa:mainnet or kaspa:testnet-10 (default testnet-10).). The author declared them in the registry entry; get the values from the project itself.

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Kx402 — questions

Answers built from our own checks of this server.

Why is there no uptime for Kx402?

Kx402 runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package kx402 was installed 33 times last week.

How do I connect Kx402?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It runs locally, so the command pulls kx402 straight from npm; nothing to host, nothing to sign up for.

How many people use Kx402?

The npm package kx402 was installed 33 times in the last week. Week over week that is -87%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is Kx402 open source?

Yes — it is published under the MIT licence, written in JavaScript and 0 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.