kx402 MCP

An agent-centric payer for x402 services settled on Kaspa L1. It allows AI agents to pay for x402 v2 services per call using KAS without human intervention, accounts, or credit cards. The MCP server enables agents to execute payments programmatically with strict guardrails, capping spending at the offer's price.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

Community listingLocal stdioSource reviewed; not executedPublished by Kali123411

Vendor documentation

What you can do with it

Pay for x402 v2 services per call
Inspect x402 offers without payment
Check wallet balance and address
Execute micropayments on Kaspa network

Source and maintenance

Community listingRegistry 0.1.1

mcp-registry: io.github.Kali123411/kx402@0.1.1 Source repository

Maintenance checked: Oct 31, 2026, 10:59 PM UTC

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

kx402 0.1.1

npmnpx

kx402 package definition

{
  "version": "0.1.1",
  "transport": "stdio",
  "identifier": "kx402",
  "runtimeHint": "npx",
  "registryType": "npm",
  "packageArguments": [
    {
      "type": "positional",
      "value": "mcp"
    }
  ],
  "environmentVariables": [
    {
      "name": "KASPA_X402_KASPA_WASM_MODULE",
      "format": "string",
      "isRequired": true,
      "description": "Path to the rusty-kaspa v2.0.0 nodejs WASM SDK (kaspa.js). Get it with the repo's `npm run fetch-sdk`."
    },
    {
      "name": "KASPA_X402_FUNDING_WALLET",
      "format": "string",
      "isRequired": true,
      "description": "Funding key: wallet-key:<path> to a 0600 file holding a 64-hex private key, or a raw 64-hex key."
    },
    {
      "name": "KASPA_X402_NETWORK",
      "format": "string",
      "description": "kaspa:mainnet or kaspa:testnet-10 (default testnet-10)."
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

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Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.

Cursor configuration

{
  "mcpServers": {
    "kx402-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "kx402@0.1.1",
        "mcp"
      ],
      "env": {
        "KASPA_X402_KASPA_WASM_MODULE": "<YOUR_KASPA_X402_KASPA_WASM_MODULE>",
        "KASPA_X402_FUNDING_WALLET": "<YOUR_KASPA_X402_FUNDING_WALLET>",
        "KASPA_X402_NETWORK": "<YOUR_KASPA_X402_NETWORK>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.

Cline configuration

{
  "mcpServers": {
    "kx402-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "kx402@0.1.1",
        "mcp"
      ],
      "env": {
        "KASPA_X402_KASPA_WASM_MODULE": "<YOUR_KASPA_X402_KASPA_WASM_MODULE>",
        "KASPA_X402_FUNDING_WALLET": "<YOUR_KASPA_X402_FUNDING_WALLET>",
        "KASPA_X402_NETWORK": "<YOUR_KASPA_X402_NETWORK>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.

VS Code configuration

{
  "servers": {
    "kx402-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "kx402@0.1.1",
        "mcp"
      ],
      "env": {
        "KASPA_X402_KASPA_WASM_MODULE": "<YOUR_KASPA_X402_KASPA_WASM_MODULE>",
        "KASPA_X402_FUNDING_WALLET": "<YOUR_KASPA_X402_FUNDING_WALLET>",
        "KASPA_X402_NETWORK": "<YOUR_KASPA_X402_NETWORK>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.

Claude Desktop configuration

{
  "mcpServers": {
    "kx402-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "kx402@0.1.1",
        "mcp"
      ],
      "env": {
        "KASPA_X402_KASPA_WASM_MODULE": "<YOUR_KASPA_X402_KASPA_WASM_MODULE>",
        "KASPA_X402_FUNDING_WALLET": "<YOUR_KASPA_X402_FUNDING_WALLET>",
        "KASPA_X402_NETWORK": "<YOUR_KASPA_X402_NETWORK>"
      }
    }
  }
}

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