product / replay · api explorer

Spin up your own Solana validator preloaded with real mainnet state, then drive it however a test demands — fast-forward through real blocks, splice in your own transactions, patch any account, deploy programs, and checkpoint/restore the whole ledger. It's a throwaway mainnet you fully control: reproduce a bug, rehearse a change, or probe an edge case against production reality with no risk to mainnet — every action reachable over one typed HTTP + MCP surface.