{"name":"B3 Zerion API","description":"Cached, authenticated proxy for the Zerion API (api.zerion.io/v1)","version":"1.0.0","endpoints":{"proxy":"/v1/*","health":"/health"},"usage":{"passthrough":"Call any Zerion v1 path directly, e.g. /v1/wallets/{address}/portfolio","auth":"/v1/* requires Authorization: Bearer <key> (server-to-server) or a request from an allowed origin","testnet":"Send X-Env: testnet or ?env=testnet for testnet data","fresh":"Add ?fresh to bypass cache (rate limited: 20/min/IP)","caching":"Live data cached 2s; /v1/chains* cached 1h"}}