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Getting Started
Arrow API delivers serialized, unsigned Solana transactions on demand. Grab an API key, and you're ready to start building with sophisticated and optimized Solana transactions for your dApp on mainnet-beta.
Start sending transactions in minutes, not days
Confidently request production-ready transactions without maintaining RPC plumbing or SDK scaffolding. Plug them directly into wallets, custody flows, or your own servers.
Create an API Key
Already have credentials? Drop them in the Authorization header as Bearer <API_KEY>.
What’s next
Fundamentals
Why Transactions Matter
Understand how transaction design impacts performance, observability, and user experience on Solana.
Read guide API referenceSolana Transactions
Explore ready-to-use endpoints for SOL and SPL token transfers, helpers, and composable transaction flows.
View endpoints