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The REST method playground defaults to mainnet and offers testnet in its server dropdown:
It exposes finalized exchange data under /api/v1. Catalog resources use a feedEpoch: null envelope because they are not WebSocket replay cuts. Market and user datasets return the committed feedEpoch and the corresponding marketSeq or globalUserSeq when a replay cursor is available.

Markets

Browse spot markets and trailing 24-hour summaries.

Market details

Read one market’s tokens and trading configuration.

Market trades

Read finalized fills and obtain the market WebSocket join cursor.

Tokens

Browse supported token metadata.

Token details

Read one supported token.

Candles

Query historical OHLCV candles.

Resolve user

Resolve a wallet address to its Kuru user ID.

User open orders

Read a finalized open-order snapshot and its user cursor.

User balances

Read all finalized balances or select one token.

User trades

Read finalized maker and taker trades with fees and PnL.

Order events

Read finalized order creation, cancellation, and RAB reduction history.

User fee tier

Read the root account’s assigned maker and taker fee rates.

Account value and PnL snapshots

Read hourly USDC account value and cumulative PnL history.
Fee tiers and account-value snapshots return feedEpoch as a decimal string (or null before initialization), without a replay sequence. An epoch of "0" is valid for a fresh feed. These endpoints are not WebSocket replay bootstraps.

REST to WebSocket handoff

For market trades, pair feedEpoch with marketSeq and subscribe to the matching finalized market stream. For user orders, balances, or trades, pair feedEpoch with globalUserSeq and subscribe to the matching finalized user stream. Install the REST data first, then request replay from that exact cursor. Both cursor fields may be null before the current feed epoch has materialized that scope. In that case the response remains valid finalized data, but it is not a WebSocket replay bootstrap.

Response envelopes

Catalog collections return:
Catalog resources and candles return:
Errors include a request ID for support and tracing: