Market Maker Guide

Everything you need to quote on Futuur through the API. Start in play money, go live when you're ready.

1. Get started

Create an account and generate your API keys under Settings → API keys: futuur.com/a/settings
Test in play money. Add currency_mode=play_money to your queries and use the OOM currency when placing orders. It runs on the same endpoints as real money, at no cost. Ooms can't be withdrawn, so play money proves your integration, not your P&L.
Fund a real-money account if you're in an eligible jurisdiction (see section 6).
Go live with currency_mode=real_money and USDC or USDT.

2. API at a glance

Full documentation: docs.futuur.com · Base URL: https://api.futuur.com/v2.0

What	How
Authentication	HMAC-SHA512. Send `Key`, `Timestamp` and `HMAC` headers. Authentication guide
Browse events and order books	`GET /events/`, and the order book endpoint per market
Place an order	`POST /orders/`. Limit order with `price` between 0 and 1, or market order with `price: null`
Order size	Minimum bet in real money is 1 USD; no minimum in Ooms. Maximum varies by market.
Batch operations	Create, update or cancel up to 20 orders per request
Cancel	Cancel one order, a batch, or all orders (optionally scoped to one event or market)
Your rebates	`GET /wagers/rebates/`

Useful order options: expired_at auto-cancels the unfilled part of an order at a set time; cancel_conflicting_orders cancels your conflicting open orders on the same market before placing the new one.

Real-time data. Futuur uses Pusher WebSockets: the global event channel for market-wide feeds, event-{event_id} for best-bid/offer and order-book updates, and HMAC-authorized private channels for your orders and account. WebSocket docs

3. Rate limits

2,000 requests per minute and 30,000 per day, per account.
Higher limits are available to market makers on request. Write to [email protected].
Use WebSockets for market data rather than polling, and batch endpoints for order changes.
Identical POST requests within 1 second are rejected as duplicates, so wait at least 1 second before retrying.

Rate limits docs

4. Fees and rebates

The taker pays a fee; 80% of it goes back to the maker whose resting order was filled, instantly and on every market. No application or volume threshold. There’s zero fees for makers.

Rebates: how it works, with an example