Cross‑chain Intent quotes are so low they look unprofitable. But this is not because Sol vers are doing charity work. Their profit does not come from your fees—it comes from the "path" you quote itself. They earn from the spread on the execution route, inventory arbitrage, and the scale of batch processing, not simply by eating your fee spread.
Step 1: Understanding the core of Solver profit—spreads, not fees
A Solver's business model is much like a market maker's. They give you a "low" price, then use their own capital to fill the order.
What to do: Split a Solver's quote into "how much you get" and "how much it costs them to deliver it".
How to do it: The Solver earns the spread between the price you accept and their actual execution cost. NEAR Intents has a protocol fee of just 0.01%, but a Solver's main profit source is the "spread" they set when competing for your order. Even with extremely low fees, Solvers can profit through their own liquidity channels and inventory management. LI.FI's documentation also clearly states that a Solver "delivers assets on the destination chain using its own funds".
Completion criteria: You understand that a Solver's profit does not rely on the tiny fee you pay, but on their ability to obtain a better price.
Step 2: Breaking down a Solver's profit sources—inventory arbitrage, batching, and MEV
When you see a quote that looks too low, the Solver is probably earning "invisible money".
What to do: Learn about a Solver's other money‑making channels beyond the spread.
How to do it:
Inventory arbitrage: The Solver already holds the coin you want at a low cost. Even if the quote looks very good to you, they still have a profit margin.
Batching: Solvers handle many user Intents at the same time. They use a basket of transactions to optimise the route and spread the costs. The per‑trade profit is razor‑thin, but the total volume is huge.
MEV (Miner Extractable Value): Solvers can exploit the information advantage in the order flow to arbitrage between decentralised exchanges. This gain is not reflected in the quote you see.
Completion criteria: You realise that a low quote does not mean the Solver is losing money—it just means the profit is not coming from your trading fee.
Common mistake
Seeing a low quote and thinking "the Solver must be losing money, this trade is a sure win". In reality, a Solver's quote is the result of an auction—multiple Solvers are competing and willing to squeeze the spread down to nearly zero to win your order. You think you are getting a steal, but the Solver might be using your order to hedge their risk exposure or to tidy up their inventory structure.
In an Intent architecture, the Solver takes on execution risk. They front their own money to deliver assets to you, and then get reimbursed later through the settlement process. If there is price movement or a settlement delay, the Solver can lose money. So "low quote" does not mean "low risk"—the Solver is simply using professional risk management to earn that slim margin. As a normal user, you do not need to worry about how much the Solver earns; just check that the quote is reasonable and the settlement goes smoothly.
How to verify
Next time you make a cross‑chain Intent trade, compare the Solver's quote with a DEX aggregator (like 1inch or Matcha). If the Solver's quote is clearly lower and executes faster, it means the Solver is using their capital advantage to buy your order flow—not letting you "scavenge a bargain". Just confirm the final amount you receive matches your expectation; you don't need to agonise over how much the Solver earned.
Next steps
Make it a habit to compare quotes from different Intent systems. Different Intent networks (like LI.FI, NEAR Intents, Synapse) may have different Solver pools. If one quote is significantly lower than the others, consider splitting the trade or checking that Solver's reputation. This helps you avoid potential slippage or delays caused by an unusually low quote.
