ai-agents-autonomous-payments-ai-agent-needs-to-pay-for-gpu-compute-services-wit-abbe5188

THEN Implement the x402 payment protocol by having the agent handle HTTP 402 Payment Required responses. Upon receiving a 402, the agent pays the requested amount in USDC on Base L2 and retries the request with a payment proof. This enables fully autonomous compute payments.

from x402.client import PaymentClient

client = PaymentClient(private_key="0x...", chain="base")

response = client.request(
    "POST",
    "https://api.gpubridge.io/v1/run",
    json={
        "service": "flux-schnell",
        "input": {"prompt": "A robot painting on a canvas", "steps": 4}
    }
)
print(response.json())