{"service":"watch_session","description":"Pay-as-you-go session for Dark Survivor alerts past the free quota. Open a refundable escrow channel once, then authorize spend with cumulative EIP-712 vouchers.","method":"POST","intent":"session","network":"eip155:196","price":{"per":"alert","amount":"20000","currency":"0x779ded0c9e1022225f8e0630b35a9b54be713736"},"suggested_deposit":"1000000","escrow_contract":"0x5E550002e64FaF79B41D89fE8439eEb1be66CE3b","actions":{"open":"Fund a new channel; paused alerts resume immediately.","voucher":"Sign the cumulative total delivered so far. Vouchers are cumulative, so one signature clears any backlog.","topUp":"Add deposit to the same channel — no re-open needed.","close":"Cooperative close. We settle the highest voucher and the escrow refunds your residual."},"params":{"address":"0x… — the watched address this channel funds. Required when the payer has more than one watch."},"notes":"An unpaid POST returns a 402 session challenge. Alerts are billed at delivery; we extend up to 25 alerts of credit between vouchers, then pause until you sign.","available":true}