Alchemy launches simulateTransactionsAtSlot for Solana

Alchemy launched simulateTransactionsAtSlot, a new Solana API method that simulates transactions against archived account state at a historical slot. It combines single and bulk simulation, multi-transaction sequencing, and historical reads in one call, running on the real Solana runtime over Alchemy's Account Archive.

The launch was announced via a post from Solana product lead Canaan Linder and reposted by Alchemy, which then amplified builder feedback describing the endpoint as a must-use for teams building trading apps on Solana — letting them test transaction paths against historical state before submission.