Documentation
Market Makers
Integration guides for teams providing liquidity on D1.
API Reference
Exact request and response schemas for every public endpoint.
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Introduction
Integrating with D1.
D1 is an options exchange. It lists cash-settled options on crypto underlyings, quoted and settled in USDC, and runs a central limit order book for each market.
D1 is the system of record for everything an integration needs to agree on: instruments, orders, fills, balances, positions and settlement. External systems connect to D1 over versioned HTTP APIs.
If you are a market maker with a D1 API key, start with the Quickstart. It takes you from your key to a placed, reconciled and cancelled order.