Frankfurter API
frankfurter.devFetch free latest or historical exchange-rate data from a public REST API without an API key.
Fetch free latest or historical exchange-rate data from a public REST API without an API key.
Sui exchange aggregating liquidity across AMMs
Interpret options sweeps and equity prints, with new subscriptions currently paused
Use desktop chart studies with explicit exchange-data options
Crypto purchases with quote controls and consolidated portfolio activity
Compare crypto conversion offers by receipt, rate type and provider
Brazilian crypto trading with quick, classic and advanced interfaces
Open source order-book infrastructure for Solana
Crypto market comparisons, portfolio tracking and separate data APIs
Find a pen pal, chat partner or local language exchange.
See cryptocurrency size and price movement together on a heatmap
Set Shopify return rules and control exchange price differences
Indonesian platform with distinct crypto trading modes
Digital-asset accounting with reconciliation and ERP journal synchronization
Native Apple pixel editing with filmstrip animation and palette exchange
Crypto exchange with recurring buys and custom orders
Rupiah crypto trading with instant and expiring limit orders
Spot trading with chart-based limits and live account interfaces
Spot markets with different buy-budget and sell-quantity inputs
Bitcoin offers with negotiated payments and multisignature escrow
Native asset swaps between blockchains
Crypto markets with separate trading and account-reporting interfaces
Standardized digital-asset trade, derivatives and order-book datasets
Language courses with speaking practice and community exchange.