What is Syncro Sender, and how does it help with Solana transaction landing?
What Syncro Sender does
Syncro Sender is a Solana transaction landing service built on P2P.org's validator infrastructure. It takes a signed transaction and delivers it to the Solana network through multiple parallel paths simultaneously, aiming to improve the likelihood of timely inclusion depending on network conditions.
Instead of relying on a single public RPC endpoint, Syncro Sender routes transactions through direct leader connections, staked TPU connections using Stake-Weighted Quality of Service (SWQoS), a dedicated relayer for redundancy, and standard RPC broadcast as a fallback. The system submits via multiple paths in parallel; if a submission reaches the leader in time and the network accepts it, the transaction can be included on-chain.
Why transaction landing matters on Solana
Every Solana transaction competes to reach the current block leader within a roughly 400-millisecond slot window. For time-sensitive operations such as arbitrage, liquidations, and high-frequency execution, arriving even one slot late can mean the difference between capturing an opportunity and missing it entirely.
Public RPC endpoints submit transactions through a single shared path, which can introduce delays and offers no prioritization. Syncro Sender addresses this by using validator-level routing and multi-path delivery to help improve speed and reliability in certain conditions.
How the service is accessed
Syncro Sender is accessed exclusively via API. Two endpoint types are available: a public endpoint for testing and evaluation, and a dedicated private endpoint for production workloads. Both use a tip-based pricing model where fees are paid only when a transaction successfully lands on-chain.
Who the service is designed for
The primary audience includes high-frequency trading firms, MEV searchers, liquidation bots, market makers, and DeFi applications that depend on fast, reliable Solana transaction landing.
Infrastructure behind the service
Syncro Sender operates on P2P.org's validator infrastructure, which includes significant Solana validator stake participation. Endpoints are deployed across Amsterdam, Frankfurt, New York, London, Tokyo, and Singapore, designed to support low-latency access across multiple geographic regions, subject to network conditions.
This article is for informational purposes only and does not constitute a service agreement. Use of Syncro Sender is governed by the Terms of Service.