- Venue Paper (
VenuePaperBroker): local paper ledger filled at live public venue prices (Binance Spot Test Network or Kraken public). No API keys; no real funds. Supports connect, market fills → positions, mark-to-market equity, close, andreconnect(). - Binance Sandbox (
BinanceSandboxBroker): authenticated HMAC orders against Spot Test Network only (testnet.binance.vision). Productionapi.binance.comis refused. Keys fromBINANCE_API_KEY/BINANCE_API_SECRET(env only). - Settings → Broker Mode: Venue Paper, Binance Sandbox.
PaperBroker.reconnect()and public feedreconnect()helpers.
- No mainnet order path in this release.
- Secrets never logged (
venues.secretsredaction on error bodies). - See
.env.exampleand MULTI_VENUE_RESEARCH.md.