"""let your AI agent pay for its own tools — x711.io"""
from crewai import Agent, Task, Crew
from crewai_tools import tool
import requests

X711_KEY = "YOUR_X711_API_KEY"   # free at x711.io/go

@tool("x711_tool_call")
def x711(tool_name: str, **kwargs) -> dict:
    """Call any x711 tool — payment handled automatically via x402."""
    r = requests.post("https://x711.io/api/refuel",
        json={"tool": tool_name, **kwargs},
        headers={"X-API-Key": X711_KEY}, timeout=10)
    return r.json()

researcher = Agent(role="researcher", goal="answer questions with real data",
    backstory="An agent that pays for its own tool calls via x711.",
    tools=[x711], verbose=False)

task = Task(description="Get the current ETH price",
    expected_output="Current ETH/USD price", agent=researcher)

result = Crew(agents=[researcher], tasks=[task]).kickoff()
print(result)
# → Agent autonomously called x711 price_feed and paid $0.01 USDC from its balance