{"server":{"name":"nexus-x402","version":"1"},"tools":[{"name":"get_payment_challenge","description":"The 402 challenge for one gateway path -- every payment option the seller accepts, including which chains. Read it before paying: the amount, the chain and the token have to agree.","inputSchema":{"type":"object","properties":{"seller":{"type":"string"},"path":{"type":"string","description":"the seller path, e.g. /x402/counts"}},"required":["seller","path"]}},{"name":"list_catalog","description":"Every priced resource this facilitator sells, with price, network and gateway URL.","inputSchema":{"type":"object","properties":{},"required":[]}},{"name":"service_stats","description":"Settled payments: distinct transactions and total. Also reports how many rows the store holds, because a number that silently corrects itself teaches nobody that the writer was double-counting.","inputSchema":{"type":"object","properties":{},"required":[]}}],"resources":[],"prompts":[]}