{"x402_enabled":true,"facilitator_url":"https://api.cdp.coinbase.com/platform/v2/x402","facilitator_reachable":true,"pay_to":"0xdf0C4a88CF28E24Cd63a0d2aC54052c65F0C7700","price_usdc":"0.001","network":"Base mainnet (eip155:8453)","paid_routes":["/signal","/signal/{asset}"],"challenged_agents":[],"total_402_challenges_all_time":16663,"total_paid_all_time":9,"revenue_usdc_all_time":0.009,"payment_headers":["x-payment","payment-signature"],"how_to_pay":"1. GET /signal → receive 402 with payment-required header. 2. Decode base64 payment-required header to get payment details. 3. Sign USDC payment using x402 SDK (pip install x402 / npm install x402). 4. Retry GET /signal with x-payment header containing base64-encoded signed payload.","window_days":30}