The data went on sale

On 17 June 2026 the Cayø Largo API opened for subscription.

Until that morning the archive was something we read and nobody else could. It had been collecting since 2025: six coins, a snapshot every ten minutes, 37 Greeks per contract, a 127-column volatility surface, gamma exposure corrected for which side actually took the trade. The analytics boards had been public for months, and they still are, free and without an account. What they show is the output. What went on sale is the thing underneath: 26 REST endpoints across 11 domains, against the same history the boards draw from.

We did not build the data platform because a data platform was the goal. It was the precondition. You cannot backtest a crypto-options strategy against history nobody has stored, and nobody had stored it at this depth, so the first product had to be the archive.

Tiers, limits and prices are on the pricing page, and every endpoint is documented with its formulae in the API reference.