Monetize your MCP server

Fill in your server, payment account and per-tool prices. CasCet generates a validated cascet.config.json and the exact npx @cascet/cli commands — no code changes to your tools.

Server

The MCP server you want to monetize. Its code stays unchanged.

Name

CommandArgsspace-separated

Payment

Where earnings go, on Casper Testnet.

payToyour Casper public key, or a RevenueSplit contract account

Gateway porttokensPerUsdCEP-18 units per USD (testnet demo rate)

Asset package hashCEP-18 payment token

SymbolDecimals

Facilitator URLFacilitator API keyCSPR.cloud access token (optional)

Tools & prices

Price each tool per call. Unlisted tools stay free (or use a default).

Default pricefallback for unlisted tools — leave blank to keep them free

cascet.config.json

valid

{
  "name": "my-paid-mcp",
  "upstream": {
    "type": "stdio",
    "command": "node",
    "args": [
      "./my-mcp-server.js"
    ]
  },
  "network": "casper:casper-test",
  "payTo": "<your Casper public key>",
  "asset": {
    "packageHash": "b3e9908b6cdbf5c565b686938994e3ac8e6749f41bcbe83615604321a0965d49",
    "name": "Wrapped CSPR",
    "symbol": "WCSPR",
    "decimals": 9,
    "version": "1",
    "tokensPerUsd": 50
  },
  "facilitator": {
    "url": "https://x402-facilitator.cspr.cloud"
  },
  "pricing": {
    "tools": {
      "my_tool": {
        "price": "$0.01",
        "description": "example priced tool"
      }
    }
  },
  "port": 4402
}

Run it

npx @cascet/cli init my-paid-mcp
# replace the generated cascet.config.json with the one on the right (or download it)
npx @cascet/cli wrap                       # your MCP server is now paid

CASCET_KEY_PATH=./agent.pem npx @cascet/cli connect http://localhost:4402/mcp

This generates a config for the open-source CLI you run yourself. A hosted control plane — a paid endpoint + dashboard in one click — is on the roadmap.