{"ok":true,"name":"goodearth_check_balance","description":"Check a patron's credit balance at this operator. This is the patron's spending balance — credits purchased via Lightning for tool calls at this operator. For the operator's own balance at the Authority (needed to certify patron purchases), use authority_check_balance instead. Free — no credits required. Proof of npub ownership is required to prevent anyone-with-the-registry from enumerating balances.","inputSchema":{"type":"object","required":["npub"],"properties":{"npub":{"type":"string","description":"The Nostr public key (npub1...) whose balance to check."}},"additionalProperties":false},"serverUrl":"https://goodearth.tollbooth-dpyc.com/mcp","transport":"http","handshake":"ok","host":"goodearth.tollbooth-dpyc.com","score":40,"grade":"C","auth":"oauth","lastScannedAt":"2026-10-30T13:10:00.853Z","stale":false,"permalink":"https://agentboardai.app/mcp/goodearth.tollbooth-dpyc.com/goodearth_check_balance","page":"https://agentboardai.app/site/goodearth.tollbooth-dpyc.com"}