kaspa-compute-mcp

An MCP server that gives any MCP-capable AI agent one tool — kaspa_compute — to run AI tasks, paying per call in Kaspa (KAS) over HTTP 402. No API key.

Points at a hosted kaspa-ai-gateway (a free, non-commercial demo — operator takes 0%).

Install

Add to your MCP client's config (claude_desktop_config.json, Cursor, Cline, …):

{
  "mcpServers": {
    "kaspa-compute": {
      "command": "npx",
      "args": ["-y", "kaspa-compute-mcp"],
      "env": {
        "KASPA_COMPUTE_GATEWAY": "https://kaspai.win",
        "KASPA_COMPUTE_PRIVATE_KEY": "<your kaspa wallet private key>",
        "KASPA_COMPUTE_MAX_SPEND_KAS": "1"
      }
    }
  }
}

npx -y means there's nothing to install by hand.

Get a wallet

npx kaspa-compute-mcp init

Creates a fresh Kaspa wallet, prints the address + the exact config block above with the key filled in, and saves kaspa-compute-wallet.json. Fund the address with a few KAS (buy on any exchange that lists Kaspa, withdraw), paste the block, restart your MCP client.

The tool

kaspa_compute(prompt, model?, maxTokens?)

• model: kaspa-fast-1 (default) or kaspa-reasoning-1
• Returns the answer, the amount paid in KAS, and the transaction id.
• Every call broadcasts a real Kaspa transaction and costs a flat 0.2 KAS (~half a cent).

Env vars

| Var | Default | | |---|---|---| | KASPA_COMPUTE_GATEWAY | — | the hosted gateway URL (required) | | KASPA_COMPUTE_PRIVATE_KEY | — | payer wallet, hex (required to actually pay) | | KASPA_COMPUTE_MAX_SPEND_KAS | 1 | per-session cap — the server refuses once cumulative spend hits this | | KASPA_COMPUTE_RPC_URL | auto | a specific Kaspa wRPC node; omit to auto-discover a public one |

License

MIT.