Channels - Archer Exchange

Channels are per-market (subscribed with a market field), per-wallet (subscribed with a user field), or global (no key needed).

Per market channels

Channel	Purpose	Snapshot on subscribe	Updates
orderbook	Aggregated bid/ask levels across all maker books for this market	yes	deltas
trades	Recent and live trades for this market	yes (last 50)	one message per trade
ticker	24h rolling stats for this market	yes	periodic (~1s) updates
kline	OHLCV bars for the last-traded-price stream	yes (current bar)	bar updates while open + on close
mid_kline	OHLCV bars for the mid-price stream	yes (current bar)	bar updates while open + on close
limit_orders	LO lifecycle (place / resize / cancel) for all wallets on this market	no	one message per LO event

Per wallet channels

Channel	Purpose	Snapshot on subscribe	Updates
user_orders	LO lifecycle for the subscribed wallet only	no — read via `GET /v1/order/limit?user=...`	one message per place / resize / cancel
user_fills	Per-fill attribution for the subscribed wallet’s resting orders	no — read via `GET /v1/order/fills?user=...`	one message per `MakerFillEvent`

No on-chain identity proof. All LO data is public on-chain, so subscribing
to another wallet’s user_orders / user_fills gives you exactly what you’d
see by reading the chain yourself. Useful for integrators showing a customer
their own data; not a privacy boundary.

kline vs mid_kline. kline is built from trade prints (last traded
price). mid_kline is built from the live mid of the aggregated book
((best_bid + best_ask) / 2). They’re separate streams; subscribe to
whichever is needed.