Quickstart for Sellers

uv add laissez

import random, secrets
from fastmcp import FastMCP
from eth_account import Account
from laissez.types import PaidTool
from laissez.mcp import LaissezMCPProvider

mcp = FastMCP("Dice Roller")

@mcp.tool
def roll_die() -> int:
    return random.randint(1, 6)

@mcp.tool
def multiply(a: int, b: int) -> int:
    return a * b

paid_tools = [
    PaidTool(name="roll_die", price=0.001, description="Roll a die"),
    PaidTool(name="multiply", price=0.005, description="Multiply numbers"),
]

wallet = Account.create(secrets.token_urlsafe(32))

app = LaissezMCPProvider(mcp=mcp, tools=paid_tools, wallet=wallet)
app.run()