Flint Trade Launches On-Chain Prop AMM for Solana Spot Market Makers

Flint Trade went public on July 23 with a live on-chain prop AMM designed to solve a specific problem: professional market makers that want to provide Solana spot liquidity have historically had to rebuild their trading stack for Solana's transaction model. Flint's system lets them skip that step. The project provides the infrastructure layer (gas management, priority fees, and transaction landing) while the market maker contributes only their quoting logic.

The Solana official account endorsed the launch the following morning:

Flint's own product page puts Solana's scale in context: $60.42 billion in trailing 30-day DEX volume per DeFiLlama, $1.35 trillion in all-time aggregator volume across Jupiter, DFlow, and Titan, and $3.01 billion in tokenized assets on-chain per rwa.xyz, all as of July 17, 2026.

How Flint's Prop AMM Works

The architecture places Flint's server between incoming taker flow from Solana aggregators and the market maker's quoting model. A maker connects, chooses a quoting style (oracle offsets, explicit order lists, or linear distribution), and the Flint client library generates optimized transactions automatically. Flint posts those as a live on-chain book and handles submission, priority fees, and fill reporting.

For quote refreshes, makers send an updated oracle price and Flint shifts the entire book without rewriting full order state. That keeps quote updates cheap under fast-moving market conditions.

Multiple makers can quote the same market simultaneously. When taker flow arrives, fills are allocated pro-rata across all makers at each price level. If Maker A is offering 60 SOL and Maker B 40 SOL at the best ask, a 50 SOL taker order fills 30 SOL from A and 20 from B. Each maker's share of that price level determines their allocation, so tight pricing earns priority but a fraction of a millisecond of latency does not shut a maker out entirely. More makers participating means deeper books, which creates a structural incentive to accumulate liquidity over time.

For cross-pair liquidity, Flint synthesizes the implied price on demand from two USDC legs: JTO/SOL, for example, derives from JTO/USDC divided by SOL/USDC, with each maker controlling which crosses they expose. Makers can disable specific crosses entirely.

Execution outcomes, fill data, inventory drift, and spread distribution are all visible in a single maker console. The matching runs on-chain, so allocation rules and fill results are inspectable rather than hidden off-chain.

The Market It Targets: Non-Native Solana Desks

Flint is built explicitly for market makers that are not already set up to operate on Solana. Solana's transaction model (priority fees, compute budget mechanics, and competition for block space) does not translate directly from other chains, and building the infrastructure to manage it has historically meant real upfront investment before a desk can quote a single pair.

Flint absorbs that complexity with hosted transaction landing, a standard API surface, auth-wallet safety, and direct team support. The product is unambiguous about its target: "Professional market makers should not have to rebuild their stack to quote on Solana."

Our earlier coverage of prop AMMs as Solana's biggest DeFi innovation gives context for why the design pattern matters: by giving market makers pluggable control over their quoting logic while the AMM handles execution, the model produces tighter spreads for traders without forcing makers to compete purely on latency.

OKX DEX and Titan Live; Jupiter and DFlow in Progress

OKX DEX and Titan are live integrations at launch. Jupiter JUP$0.186-0.4% and DFlow integrations are described as in progress on the Flint Trade product page. Together these four venues are the main entry points for taker flow on Solana.

Those venues are not equally sized. Solana Compass analytics show Jupiter routing $13.9 billion over the trailing 30 days, by far the largest aggregator on the chain. OKX DEX routed $1.6 billion over the same window, DFlow $943 million, and Titan $464 million.

The Jupiter integration being listed as in progress rather than live at launch makes it the more consequential future unlock: most aggregator-routed Solana volume flows through it. The live OKX DEX and Titan connections give Flint immediate access to the second and fourth largest venues by aggregator volume in the window above.

Team and Backing

Flint is backed by Ergonia. Co-founder and CEO Joshua Watts previously worked at the dYdX Foundation. Co-founder and CTO David Gorski comes from Jito JTO$0.587-7.6% Labs and Jump Trading, a pairing of Solana-native infrastructure experience and professional trading desk background. The engineering team includes alumni from Anza, Google, Step Finance, Drift, Coinbase, M0, and SwissBorg.

Why the Access Gap Exists, and What Closing It Means

Solana is the highest-volume DEX chain but most professional market-making capacity sits in desks built around infrastructure assumptions that do not transfer cleanly to Solana's transaction model. The gap means that some of the deepest liquidity pools in crypto have not been actively competing for the flow that routes through Jupiter and its peers.

Lowering that cost of entry does not only benefit market makers. Tighter spreads and deeper books follow when more makers compete for the same flow, and those improvements compound across every Solana DeFi application that relies on spot pricing for collateral, settlement, or portfolio rebalancing.