Stripe subsidiary Privy has launched FullSend, a transaction routing tool built with Solana infrastructure firm Jito Labs to improve the reliability and speed of Solana transactions sent from Privy wallets.
The tool is designed to route signed Solana transactions directly to current and upcoming block leaders through Jito’s low-latency infrastructure, instead of relying only on standard remote procedure call, or RPC, broadcast methods. According to company materials, FullSend has achieved 99.999% transaction inclusion reliability since its rollout in January, based on data collected from live Privy wallet activity.
The launch is aimed at a key problem for companies using public blockchains: making sure transactions are confirmed quickly, consistently and with less exposure to interference during the short period between signing and block inclusion. Privy said the system reduces transaction inclusion latency to about 50 milliseconds, compared with roughly 200 milliseconds through typical RPC broadcast routes.
That difference matters for firms that need predictable settlement, including payment companies, fintech platforms, market-making firms and enterprises handling high-volume on-chain activity. For those users, even small delays or failed transactions can create operational risk, poor customer experience or unexpected costs.
FullSend has been running inside Privy wallets since the start of 2026 and has processed millions of transactions without interruption, according to the company. The tool uses standard Solana priority fees and is integrated directly into Privy’s existing wallet infrastructure, meaning clients using Privy wallets do not need to build separate transaction routing systems from scratch.
Privy was acquired by Stripe in 2025 and has become part of the payments company’s broader push into digital asset infrastructure. The wallet provider operates about 140 million accounts across clients including Klarna, Ramp and Deel, and says it processes billions of dollars in monthly volume.
The release of FullSend shows how payment and wallet infrastructure providers are moving beyond simple account creation and custody features. They are now trying to improve the basic mechanics of on-chain execution, particularly for companies that require blockchain systems to perform with reliability closer to traditional financial networks.
How FullSend routes Solana transactions
Solana operates through a leader rotation system, where validators take turns producing blocks. That leader changes roughly every 400 milliseconds. FullSend connects directly to this rotation by sending signed Privy wallet transactions to the validators expected to lead current and upcoming blocks.
In a standard setup, a wallet or application typically broadcasts transactions through RPC providers. Those transactions then move through the network until they reach a validator able to include them in a block. This process can work well under normal conditions, but it may become less predictable during congestion, heavy trading activity or periods when many applications are competing for block space at the same time.
FullSend is designed to shorten that path. By routing transactions more directly to block leaders through Jito’s low-latency network, the system reduces the time between transaction signing and likely inclusion. Privy says this lowers transaction inclusion latency to 50 milliseconds, a level intended for applications that cannot tolerate repeated delays or uncertainty.
The routing method also attempts to improve transaction reliability by targeting both current and future leaders. If one leader cannot include a transaction, the system can continue directing it toward the next available block producers. This approach is intended to reduce the chance that a transaction is delayed, dropped or left unconfirmed during fast-moving network conditions.
For everyday users, the difference may not always be visible. A payment that settles in a fraction of a second and one that settles after a few hundred milliseconds can feel similar. But for companies building financial products, automated execution systems or high-volume payment flows, consistency is often more important than the single fastest result. Systems need to behave predictably thousands or millions of times, not just once.
That is why Privy is positioning FullSend as infrastructure for businesses rather than as a consumer-facing wallet feature. The service is aimed at companies whose products depend on transactions being included with minimal delay and a very low failure rate.
Reducing exposure to MEV risk
FullSend is also designed to limit exposure to Maximal Extractable Value, commonly known as MEV. MEV refers to value that can be captured by changing the order, timing or inclusion of transactions before they are finalized on-chain.
In practice, MEV can show up in several ways, including front-running, transaction reordering or selective censorship. These practices can create hidden costs for users and firms by allowing sophisticated actors to profit from information about pending transactions.
The risk is especially relevant when transactions are visible before they are included in a block. If a transaction passes through public or widely monitored channels, other parties may be able to react before it settles. In markets involving swaps, liquidations or fast-moving prices, that short window can be enough to change execution outcomes.
FullSend addresses this issue by routing transactions through a more direct path to block leaders, rather than leaving them more exposed in standard broadcast channels. The goal is not only faster inclusion, but also a more controlled route from transaction signing to block production.
For trading firms and fintech companies, MEV protection is not just a technical feature. It can affect pricing, execution quality and customer trust. Users may be less willing to rely on on-chain services if they believe transactions can be reordered or exploited before settlement.
By combining direct-to-leader routing with standard priority fees, Privy is trying to give companies a way to pay for transaction urgency without adding a separate or unfamiliar fee model. That may make the tool easier for existing Privy clients to adopt, because it fits within the normal Solana transaction cost structure while improving the path a transaction takes through the network.
Why reliability matters for business use
The launch comes as public blockchains are being tested for more demanding commercial applications. Early crypto systems often focused on trading, token issuance and decentralized finance. More recently, payment companies, payroll providers, neobanks and enterprise software firms have started exploring stablecoins, embedded wallets and tokenized assets.
Those applications require more than basic blockchain access. They need predictable transaction behavior, clear cost expectations and infrastructure that can operate at scale. A failed consumer payment, delayed payroll transfer or uncertain settlement event can create real business problems.
Privy’s client base reflects that shift. The company provides wallet infrastructure for consumer and enterprise platforms that often hide blockchain complexity from end users. In those environments, the wallet may be embedded inside an app, and users may not even think of themselves as using a crypto wallet. They expect the product to work like any other modern financial or software service.
That expectation creates pressure on infrastructure providers. If a user clicks to pay, transfer funds or complete an action, the transaction must complete smoothly. If it fails or hangs, the app provider may bear the support burden, even if the underlying cause is network congestion or routing inefficiency.
FullSend is presented as a response to that problem. By increasing the probability that a transaction reaches a block quickly, the tool gives application developers more confidence that user actions will complete as intended.
The 99.999% inclusion reliability figure is particularly important in this context. In enterprise software and payments, reliability is often measured in very small failure rates. A system that works most of the time may still be unacceptable if failures occur during high-volume periods or critical business processes.
Privy’s claim that FullSend has handled millions of transactions without interruption since deployment suggests the company is using production data rather than only test results. Still, the broader test for the tool will be how it performs during extreme market activity, network congestion or periods of sudden demand across Solana applications.
Solana’s growing role in high-volume activity
The focus on Solana is tied to the network’s emphasis on speed and low transaction costs. Solana has become a major venue for decentralized trading, stablecoin activity, consumer applications and token experiments. Its design allows for fast block production and high transaction throughput, but heavy usage has also raised questions about congestion, transaction failures and execution quality during peak periods.
Infrastructure companies are trying to solve those issues at the routing, wallet and validator levels. FullSend is one example of this trend. Rather than waiting for application developers to manage transaction delivery on their own, wallet infrastructure providers are building tools that sit between the user interface and the blockchain.
The market backdrop is significant. Solana processed about 9.8 billion non-voting transactions in the second quarter of 2026, according to figures cited in the provided company context. Decentralized exchange trading volume on the network reached $117.7 billion in January 2026, while daily active users averaged more than 3.4 million in the period leading up to early June.
Stablecoin activity has also expanded. The total stablecoin supply on Solana rose to more than $16.36 billion by mid-June 2026. That growth is relevant because stablecoins are widely viewed as one of the strongest commercial use cases for public blockchains, especially in payments, remittances, treasury operations and cross-border settlement.
Tokenized real-world assets are another area where execution reliability matters. Trading volumes for tokenized real-world assets on Solana approached $4.9 billion in the first half of 2026. If that activity continues to rise, platforms handling those assets may need transaction systems that reduce failed execution and protect against value extraction.
The same applies to application fee revenue. Average application fee revenue on Solana reached about $2.26 million per day in early June, indicating strong demand for block space and on-chain services. As demand rises, routing quality can become more important because users and businesses are competing to get transactions confirmed quickly and reliably.
Stripe’s broader infrastructure push
Stripe’s ownership of Privy gives the FullSend launch added significance. Stripe is one of the world’s largest payments technology companies, and its interest in wallet infrastructure reflects the growing connection between traditional financial technology and public blockchain systems.
The acquisition of Privy in 2025 gave Stripe direct exposure to embedded wallets, account abstraction-style user experiences and business-facing crypto infrastructure. Privy’s reported 140 million accounts across clients such as Klarna, Ramp and Deel show that wallet infrastructure is no longer limited to crypto-native applications. It is increasingly being used by mainstream platforms that want to add digital asset capabilities without forcing users to manage private keys or external wallets.
FullSend fits into that strategy by focusing on execution reliability. For payment companies, the key question is not whether blockchains can process transactions in theory. It is whether they can do so repeatedly, safely and predictably in real commercial settings.
By working with Jito Labs, Privy is also relying on a Solana-native infrastructure provider with experience in low-latency transaction delivery and block-building dynamics. The collaboration suggests that wallet providers may increasingly partner with specialized network infrastructure firms rather than building every layer internally.
Privy has also previously worked with developer platform Alchemy, part of a broader effort to expand tools for institutional and enterprise users. The addition of FullSend indicates that the company is now targeting transaction execution itself as a core part of the wallet stack.
What traders and companies will watch next
The next question is whether direct-to-leader routing becomes a standard feature across wallets and applications using Solana. If FullSend performs as described during periods of heavy demand, other wallet providers may face pressure to offer similar MEV-mitigation and priority-routing tools.
Traders will also watch whether improved routing changes activity patterns on Solana. More dependable transaction inclusion could make the network more attractive for market-making, payments, stablecoin transfers and tokenized asset platforms. It could also encourage companies to build applications that previously required more predictable settlement guarantees than standard public blockchain routing could provide.
At the same time, the success of tools like FullSend will depend on transparency, performance under stress and adoption beyond a single wallet provider. Claims of high reliability are most meaningful when they hold up across volatile markets, sudden surges in user activity and periods of intense network competition.
For Solana, the development highlights the growing importance of infrastructure above the base protocol. Fast block times and low fees are valuable, but companies also need routing systems, wallet services and execution protections that make the network easier to use at scale.
FullSend is therefore more than a speed upgrade for Privy wallets. It is part of a wider effort to make public blockchain infrastructure feel more dependable for commercial finance, payments and high-volume applications. If the tool continues to deliver near-certain transaction inclusion, it could help set a higher standard for how wallets manage transaction delivery on Solana and possibly across other blockchain ecosystems.
For deeper Solana and infrastructure context, explore our guide on what is Solana and how does it work today.
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