Start with the product, not the brand
BTC European cash-settled options are not the same as USDT-linear alts, which are not the same as on-chain American-style or RFQ-only books. If the venue does not list the contract you researched on the terminal, the rest of the marketing page is irrelevant.
OptionsMatch terminal chains are multi-venue research. Click through to a venue profile on /v/{slug} and check product flags: European/American, inverse/linear, perps alongside options, RFQ/blocks, public API.
Books you can actually trade
Look at open interest and volume share on /v/stats, then confirm on the chain that the expiry and strike you care about have two-sided markets. A venue can dominate BTC ATM and still be empty on your SOL weekly wing.
Divergence desks and arb-guide exist because marks disagree. Disagreement is not a free transfer between venues.
Access: geo, KYC, entity
Many options venues restrict US persons; some restrict UK retail; on-chain venues add wallet and regional wrinkles. /countries and each profile’s geo notes are research pointers. They are not a lawyer. You still complete KYC on the venue’s entity.
How-to-read-geo-and-kyc is the dedicated walkthrough. If you cannot open the account, liquidity rankings do not matter.
Fees, margin, and API
Maker/taker on options is often a fraction of underlying with a premium cap — still enough to wreck wing scalps. Portfolio margin versus simple margin changes whether a short is even feasible. API and WebSocket quality matter if you hedge mechanically.
/v/fees and /compare exist for this. Best-for pages such as /v/best-for/api-traders and /v/best-for/beginners are editorial shortlists, not endorsements.
Use the matcher, then verify
/find-venue scores a shortlist from asset, tenor, priority, and optional catalog region. Treat the score as a research order, not a ranking of “safest.” Open the official site from a typed URL or a hop you understand (/go/{slug} may be affiliate-compensated).
OptionsMatch never opens the account for you and never sees your venue balances.
Practice this on OptionsMatch
Workflow: /t/btc/chain (what you want to trade) → /chart/BTC (spot context) → /v and /compare (who lists it) → /countries (whether you can) → venue site (execution). Education only.
Related: choosing-a-venue (shorter original) and getting-started-checklist.