OpenRate

OpenRate is an aggregator for stablecoin peer-to-peer pricing, crawling public order books on nine exchanges across 30 fiat markets including the Indian rupee, dollar, ruble, euro, rupiah and naira. Direct venues are polled every 60 seconds while reference venues sync from an aggregate snapshot; merchant rankings count only sellers with more than 100 monthly orders and a 100 percent completion rate, filtering out roughly 80 percent of quotes, before surfacing best buy, best sell, spread, premium and a depth simulation.

It answers a concrete question: what USDT actually costs in a given country right now, and where a large order would clear. Beyond the site it sells API access with merchant scores, cross-market premium rankings and arbitrage routes, used by wallets for rate display, OTC desks for pre-trade estimates and market makers for depth checks. Coverage spans 190 countries, and beyond peer-to-peer books it tracks fees on crypto cards and fiat on and off ramps.