{"enabled":true,"mainnet_live":false,"network":"base-sepolia","pay_to":"0x46ED251D724167E84009964C437088BADEFDf412","tiers":{"cheap":"Public-pool supply, best-effort","balanced":"Measured wholesale blend, health-scored routing","fast":"Premium slice, lowest measured latency"},"tax":{"treatment":"out_of_scope","country":"US","rate":0.0,"note":"Payer located outside the EU (IP evidence) — no VAT; the net price is the amount."},"challenges":{"cheap":{"x402Version":1,"accepts":[{"scheme":"exact","network":"base-sepolia","asset":"USDC","payTo":"0x46ED251D724167E84009964C437088BADEFDf412","maxAmountRequired":"4500","netAmount":"4500","resource":"gateway:cheap","description":"1000 weighted units — Public-pool supply, best-effort","unitsGranted":1000,"maxUnitsPerSettlement":20000,"windowSeconds":3600}],"redeem":{"url":"https://flexyield.io/x402/redeem","method":"POST","body":{"tx_hash":"<settlement tx hash>","tier":"cheap","signature":"<EIP-191 personal_sign by the paying wallet over messageToSign>"},"messageToSign":"FlexYield x402 redeem\n<settlement tx hash>","credential":"the response's `credential` (fyx_…), shown once — send it as X-PAYMENT; the tx hash itself is public and is NOT a credential"},"tax":{"treatment":"out_of_scope","country":"US","rate":0.0,"note":"Payer located outside the EU (IP evidence) — no VAT; the net price is the amount.","vatAmount":"0"},"note":"Measured route menu — prices derive from FlexYield's own instruments and sit on the published ladder (per call = the uncommitted lane, net; packs and subscriptions are cheaper per unit). VAT is added on top where it applies, by the payer's location at quote time; units follow the net amount paid, so paying the net price from an EU address grants proportionally fewer units, never a refusal. TESTNET REHEARSAL: every tier is served from community supply and free-drip test tokens buy nothing real; premium/wholesale routing and the mainnet settlement size activate with mainnet."},"balanced":{"x402Version":1,"accepts":[{"scheme":"exact","network":"base-sepolia","asset":"USDC","payTo":"0x46ED251D724167E84009964C437088BADEFDf412","maxAmountRequired":"9000","netAmount":"9000","resource":"gateway:balanced","description":"1000 weighted units — Measured wholesale blend, health-scored routing","unitsGranted":1000,"maxUnitsPerSettlement":20000,"windowSeconds":3600}],"redeem":{"url":"https://flexyield.io/x402/redeem","method":"POST","body":{"tx_hash":"<settlement tx hash>","tier":"balanced","signature":"<EIP-191 personal_sign by the paying wallet over messageToSign>"},"messageToSign":"FlexYield x402 redeem\n<settlement tx hash>","credential":"the response's `credential` (fyx_…), shown once — send it as X-PAYMENT; the tx hash itself is public and is NOT a credential"},"tax":{"treatment":"out_of_scope","country":"US","rate":0.0,"note":"Payer located outside the EU (IP evidence) — no VAT; the net price is the amount.","vatAmount":"0"},"note":"Measured route menu — prices derive from FlexYield's own instruments and sit on the published ladder (per call = the uncommitted lane, net; packs and subscriptions are cheaper per unit). VAT is added on top where it applies, by the payer's location at quote time; units follow the net amount paid, so paying the net price from an EU address grants proportionally fewer units, never a refusal. TESTNET REHEARSAL: every tier is served from community supply and free-drip test tokens buy nothing real; premium/wholesale routing and the mainnet settlement size activate with mainnet."},"fast":{"x402Version":1,"accepts":[{"scheme":"exact","network":"base-sepolia","asset":"USDC","payTo":"0x46ED251D724167E84009964C437088BADEFDf412","maxAmountRequired":"18000","netAmount":"18000","resource":"gateway:fast","description":"1000 weighted units — Premium slice, lowest measured latency","unitsGranted":1000,"maxUnitsPerSettlement":20000,"windowSeconds":3600}],"redeem":{"url":"https://flexyield.io/x402/redeem","method":"POST","body":{"tx_hash":"<settlement tx hash>","tier":"fast","signature":"<EIP-191 personal_sign by the paying wallet over messageToSign>"},"messageToSign":"FlexYield x402 redeem\n<settlement tx hash>","credential":"the response's `credential` (fyx_…), shown once — send it as X-PAYMENT; the tx hash itself is public and is NOT a credential"},"tax":{"treatment":"out_of_scope","country":"US","rate":0.0,"note":"Payer located outside the EU (IP evidence) — no VAT; the net price is the amount.","vatAmount":"0"},"note":"Measured route menu — prices derive from FlexYield's own instruments and sit on the published ladder (per call = the uncommitted lane, net; packs and subscriptions are cheaper per unit). VAT is added on top where it applies, by the payer's location at quote time; units follow the net amount paid, so paying the net price from an EU address grants proportionally fewer units, never a refusal. TESTNET REHEARSAL: every tier is served from community supply and free-drip test tokens buy nothing real; premium/wholesale routing and the mainnet settlement size activate with mainnet."}},"note":"Settle a payment on base-sepolia, redeem it with a signature by the paying wallet (see challenges.*.redeem), then call the gateway with header 'X-PAYMENT: <credential>'. Testnet rehearsal until mainnet."}