Start with the OKX overview if you need to understand the exchange and its reserve evidence. Use the BTC futures guide to separate dated, coin-margined contracts from BTC-USD-SWAP and compare delivery with funding. Open the API guide only when software needs account access, and use the fee calculator before an order with the rate displayed in your own account.
Platform overviewHistory, scale and reservesIncludes dated market snapshots and a repeatable PoR verification path.
API connectionPermissions and signingRead, Trade, Withdraw, IP binding and the 14-day inactivity rule.
BTC derivativesExpiry vs perpetualContract size, delivery, leverage tiers, trading fees and funding.
Trading costFee + slippageEditable scenarios with regional fee examples and worked calculations.
What should you read first?
| Your question | Open this page | What you will get |
|---|---|---|
| What is OKX, how large is it, and how can I inspect its reserves? | OKX overview | Founding and rebrand history, products, regional entities, market scale, July 2026 PoR figures, reserve-address verification and risk limits. |
| Should I use a dated BTC future or the coin-margined perpetual? | OKX BTC futures guide | Contract IDs, 100 USD face value, delivery, leverage tiers, trading fees, funding and a worked BTC cost example. |
| How do I connect a dashboard or bot without exposing the account? | OKX API key guide | Three permission levels, 20-IP limit, 14-day inactivity rule, signing, demo/live separation and failure cases. |
| What will a spot or perpetual trade cost? | OKX fee calculator | Fee and slippage scenarios, maker/taker execution logic, regional examples and break-even movement. |
These pages separate the questions because their evidence changes at different speeds. Platform scale and PoR are dated snapshots, contract specifications and funding are live product data, API security rules come from technical documentation, and the fee that matters is the one shown for the user’s entity, product, pair and tier.