{"name":"XRPLink","description":"Cryptographically verified XRP payment receipts on the Flare Network","url":"https://xrp-link.com/mcp","transport":"streamable-http","version":"0.3.0","capabilities":{"tools":true,"resources":true,"prompts":true},"authentication":{"type":"api-key-or-x402","header":"X-API-Key","payment_header":"PAYMENT-SIGNATURE","required_for":["verify_xrp_payment"],"optional_for":["get_attestation_status","lookup_attestation_by_tx","get_attestation_by_round","get_server_info"],"notes":"Discovery (initialize, tools/list) is unauthenticated. Unpaid verify_xrp_payment returns a tool error with x402 requirements, never HTTP 403."}}