Solana RPC Transactions API
Transaction-oriented JSON-RPC methods for the Solana blockchain. Includes sendTransaction to submit a signed transaction to the network, simulateTransaction to test a transaction without broadcasting, getTransaction to fetch a confirmed transaction by signature, getSignaturesForAddress to list transaction signatures for an address, getSignatureStatuses to check confirmation status of multiple signatures, getFeeForMessage to get the network fee for a given message, getLatestBlockhash to retrieve the most recent blockhash, isBlockhashValid to test blockhash expiry, getRecentPrioritizationFees for priority fee estimates, getTransactionCount for total processed transaction count, and requestAirdrop for devnet/testnet SOL.