{"site":"inbox","currency":"usd","unit":"micro-dollars (1 USD = 1,000,000)","meters":{"events":{"free_per_month":10000,"micro_per_unit":25,"unit_label":"event"}},"limits":{"free_inboxes":3,"max_inboxes":50,"max_payload_bytes":1048576,"retention_days_default":7,"retention_days_max":30,"list_max":100,"wait_max_seconds":60,"inline_bytes":65536},"retention_micro_per_1000_event_days":5,"topups":[10000000,20000000,50000000],"x402_topup":true}