During the Solana Cypherpunk Hackathon, we ran a dedicated Sanctum Gateway sidetrack with a $10,000 prize pool to reward teams that meaningfully integrated Sanctum Gateway into their projects. Gateway allows developers to take complete control of their transactions on Solana. From optimizing the transactions based on the current network health to ensuring the transaction has the best chances of landing. With Gateway, developers gain real-time control, observability, and optimization over how their transactions are delivered on Solana. We asked builders to:
- Integrate Gateway (calls to
buildGatewayTransaction+sendTransaction) - Document and tweet how Gateway enabled something otherwise hard or impossible
- Optionally, build additional tooling or UI around it
The winners have now been chosen, and each has shared a bit about their experience working with Gateway.
Winner - SolCircle
SolCircle is a Telegram bot that transforms group chats into multiplayer trading hubs.
“Sanctum made SolCircle’s life a lot easier and our trades a lot smoother.
Gateway integration was insanely straightforward: we ripped out 150+ lines of custom fee and routing logic and replaced them with two calls—buildGatewayTransaction and sendTransaction. During beta, we saw a clear jump in success rates and faster confirmations, without touching our core product logic. Sanctum basically shipped the transaction infra we would’ve burned weeks building ourselves, so SolCircle can focus on trustless group trading while Gateway quietly keeps every squad’s transaction flowing.”
2nd - MirrorFi
MirrorFi is a platform that allows users to create their own or deploy capital into strategies from expert traders.
“Gateway has helped MirrorFi by simplifying our transaction building pipeline down to only two HTTP calls, freeing us capacity to build out our custom components.”
3rd - PinTool
PinTool is a no-code automation platform designed to eliminate idle capital by turning complex DeFi strategies into secure, autonomous workflows. Creators can monetize their workflows, while investors deploy capital more efficiently.
“PinTool achieved cost-optimized, high-integrity automation by integrating Sanctum Gateway. We leveraged Gateway’s refund mechanism to definitively confirm whether the Jito Bundle provided superior delivery over the standard RPC. This integration allows PinTool to guarantee that workflows achieve the best execution rate while minimizing user transaction costs.”
4th - StakeNova
StakeNova is a staking platform that lets users stake SOL and earn rewards in USDC, adding gamification and creator incentives on top of staking infrastructure.
“We’ve wired the frontend and SDK for Sanctum Gateway - transactions can already be built and sent through its delivery layer with an automatic fallback to standard RPC. We’ve shipped that code to production, so every stake/unstake/claim flow is Gateway-ready. The remaining blocker is infrastructure: the Sanctum API key must live server-side, but a Vite-based frontend would expose any VITE_* variable to end users. The next step is to stand up a lightweight backend proxy. It will accept signed transactions from the client and, with the key held privately on the server, forward them to Sanctum Gateway. Working on that piece now; once it’s in place, we’ll point the frontend at the proxy and fully enable Gateway in prod. Integration-wise, the SDK now wraps all core flows, auto-optimizes transactions, and logs every delivery attempt. If a Gateway send fails, we seamlessly drop back to standard RPC. In testing, the Gateway path gives us faster, more predictable confirmations and better resiliency under network load switching the production traffic to it should materially improve user experience.”
5th - Light 2.0
Light 2.0 is a privacy layer built on top of Arcium and Solana that enables private transfers, private swaps, private token launches, and private yield.
“We didn’t have any issues. Easy to integrate. Gonna use it in the future for sure.”
Start Using Gateway
We’re excited to keep supporting teams turning great ideas into real, production-grade infrastructure, and to continue expanding what’s possible with Sanctum Gateway.
Key features of Gateway:
- Save money on Jito bundles. You can send transactions through RPCs and Jito Bundles at the same time. If they land through RPC, we refund the Jito Tip, so you can get the best of both worlds (better delivery + save cost). Jupiter saves hundreds of thousands of $$ a year with this service.
- Save developer time. We have a robust observability suite where you can see every transaction in real time and change parameters without any code redeployment. This means less developer time trying to track down delivery errors and fix them quicker.
- Send transactions with no RPCs required. For teams that don’t want to faff around with RPCs, we have Sanctum Sender, the simplest and cheapest way to send transactions on Solana — just plug in our API. We charge 0.0001 SOL per transaction, 10% that of Helius Sender, Nozomi, 0Slot etc.
- For bigger teams: We have a round robin functionality for transaction routing. Plug in all your RPCs and other delivery methods, specify the weights, and we will help you route your transactions to all of these in specified weights/probability. This is very useful for benchmarking and load balancing.
→ Optimize and deliver Solana transactions with real-time control