What is Intent-Based Trading?

Intent-based trading is a model in which a trader specifies the desired outcome of a trade — "I want to receive at least X amount of token B for token A" — rather than the specific execution path. A network of competitive solvers then races to fill that order using the most efficient available liquidity sources, including DEX pools, private market makers, and cross-protocol routes. The trader's intent is fulfilled; the execution details are delegated to specialized agents.

Intent-Based Trading Explained

Traditional onchain execution works in a specific sequence: the trader constructs a transaction, specifies the exact execution path (which DEX, which pool), signs it, and broadcasts it. The transaction executes on the specified path, at whatever price is available at that moment, regardless of whether a better path existed.

Intent-based trading abstracts away the execution path. Instead of a transaction, the trader signs an intent — a signed message specifying what they want: input token, output token, minimum acceptable output, expiry, and other conditions. This intent is broadcast to a solver network. Solvers — specialized agents that can access diverse liquidity sources and routing strategies — bid to fill the intent. The winning solver (the one that can deliver the best output) executes the trade.

This design has several important consequences:

Better prices. Solvers compete to win the order. Competition drives them to find the most efficient execution paths — paths a single trader constructing their own transaction might miss. Solvers can access AMMs, PMMs, CEX liquidity (in some implementations), and even peer-to-peer matches.

MEV protection. A signed intent is not a pending transaction in a public mempool. Standard Ethereum MEV bots that monitor the mempool for profitable front-running opportunities cannot front-run an intent the same way they can a standard transaction. The actual execution transaction is constructed by the solver at settlement time, reducing the window for MEV extraction.

Gasless for users. In many intent-based systems, solvers pay gas costs and recover them from the execution. Users sign an off-chain message and pay no gas — the cost is embedded in the execution economics. This is a user-experience improvement over standard transactions where users must hold native tokens for gas.

Coincidence of wants. In some intent-based systems (CoWSwap being the clearest example), solvers can match opposing intents against each other directly — a peer-to-peer settlement that never touches an AMM pool. This eliminates AMM fees and can produce better prices for both parties.

Intent-based trading is not limited to spot swaps. The model applies to limit orders, TWAP execution, and conditional trades — anywhere the trader's goal can be expressed as a desired outcome rather than a specific execution path.

How Intent Differs from Traditional AMM Execution

To understand intent-based trading, it helps to contrast it with the standard AMM execution model:

Standard AMM execution:

1. Trader constructs a swap transaction specifying the AMM and pool
2. Transaction enters the mempool (public)
3. MEV bots may detect the transaction and front-run it
4. Transaction executes at the pool's current price (which may be worse if front-run)
5. Trader receives the output minus AMM fees and potential MEV losses
6. Trader pays gas directly

Problems: transaction is MEV-exposed, limited to a single liquidity source, and requires the trader to specify the execution path.

Intent-based execution:

1. Trader signs an intent specifying desired output, expiry, and conditions
2. Intent is broadcast to solver network (not a public mempool in the same sense)
3. Solvers compete to fill the intent using the best available liquidity
4. Winning solver executes — potentially across multiple liquidity sources
5. Trader receives agreed output; solver captures any surplus execution efficiency above the minimum
6. Gas costs handled by solver (embedded in execution economics)

The net result: better prices, less MEV exposure, no gas management, and access to a broader set of liquidity sources — all from the user's perspective.

The trade-off: some degree of trust in the solver network and the settlement system. Intent-based systems have different security models than direct AMM execution. Properly designed systems have settlement guarantees: if the solver doesn't deliver the specified minimum output, the trade doesn't execute.

CoWSwap is the most prominent example of an intent-based DEX aggregator on Ethereum. Jupiter on Solana uses a routing model that shares some intent-based characteristics. Definitive's routing incorporates intent-based principles when routing to its network of private market makers — PMMs quote prices against trader intents rather than receiving specified execution paths.

The Role of Solvers

Solvers are the agents that make intent-based trading function. They are specialized entities that:

1. Monitor incoming intents from traders
2. Evaluate whether they can fill the intent profitably
3. Construct the most efficient execution path (across DEXs, PMMs, peer-to-peer)
4. Submit a settlement transaction that fulfills the intent
5. Capture any execution efficiency surplus as revenue

Solvers compete against each other in a real-time auction. The one who can deliver the best output to the trader wins the order and executes it. In systems like CoWSwap, this auction runs in batch form — solvers compete across multiple intents simultaneously, optimizing settlement across the full batch.

Who are solvers? Typically, they are:

• Market makers with proprietary access to liquidity venues
• Arbitrageurs with sophisticated routing infrastructure
• Specialized firms that invest in optimizing settlement across liquidity sources

The solver market is technically demanding. Solvers must integrate with DEX protocols, PMMs, and other liquidity sources; run real-time optimization across available paths; and operate systems fast enough to compete in short auction windows. This creates a market where a small number of highly capable solver firms compete intensely — which benefits traders through better prices.

Solver trust model. Solvers access trader intents but cannot execute them arbitrarily — the settlement system enforces the minimum output specified in the intent. A solver that delivers below the minimum output simply fails to settle. The cryptographic settlement guarantees are what allow traders to delegate execution without trusting the solver blindly.

Solver networks vs isolated routing. A platform with a competitive solver network (multiple independent solvers competing) delivers better outcomes than a single routing engine making isolated optimization decisions. Competition is the mechanism that drives solvers toward efficiency.

Benefits for Large Traders

Intent-based execution is particularly valuable for large orders, where its advantages compound:

Reduced price impact. Large AMM swaps move pool prices. A solver filling a large intent can split execution across multiple venues, access PMMs for block trade pricing, and optimize the execution path in ways that reduce aggregate price impact. The solver's incentive — capturing execution efficiency — aligns with the trader's interest in minimizing impact.

Access to block-trade liquidity. Private market makers are willing to quote specialized pricing for large block trades. A solver with PMM relationships can offer a large order directly to a PMM, which provides pricing that an AMM pool could not match. This liquidity layer is inaccessible through standard AMM execution.

MEV protection at scale. Large transactions are high-value MEV targets. Front-running a $1M swap is more profitable than front-running a $1,000 swap, so large traders face disproportionate MEV exposure in standard mempool execution. Intent-based systems provide structural MEV protection that is particularly valuable at large sizes.

TWAP as a form of intent. A TWAP order is itself an expression of intent: "execute X amount of token A into token B over Y hours at an average price no worse than Z." Intent-based systems are a natural fit for TWAP execution — each execution slice can be filled by solvers competing for that slice's order. See our TWAP order guide for a detailed breakdown of how TWAP execution works.

Execution quality reporting. Intent-based systems naturally produce execution quality data: the difference between the minimum output the trader specified and the actual output received. This surplus — or any shortfall — is measurable. For funds that need to report execution quality to administrators, this provides a benchmark.

How Definitive Uses Intent-Based Execution

Definitive's execution architecture incorporates intent-based principles in its routing to private market makers. When a trader places an order on Definitive, the routing engine queries 15+ PMMs alongside 100+ DEXs. PMMs respond with quotes — effectively competing to fill the order. The best quote wins, and execution routes to that venue.

This is the intent-based model applied to professional trade execution: Definitive broadcasts the trader's intent to a set of competing liquidity providers, collects quotes, and executes against the best available price. The trader specifies the desired outcome (receive at least X for Y); the execution details are handled by the routing engine and the competing PMMs.

For TWAP orders on Definitive, this process repeats at each execution interval. The routing engine re-queries liquidity sources at each slice, ensuring that execution continues at the best available price throughout the TWAP window — not just at the initial price snapshot.

Gas sponsorship removes a friction point common in intent-based systems: Definitive handles gas on behalf of traders across all nine supported chains. Traders do not need to hold native gas tokens or manage gas across multiple chains.

The privacy layer — Definitive Performer Addresses — adds an additional benefit relevant to large traders: execution occurs from proxy addresses rather than the trader's primary wallet. This reduces the information leakage that occurs when large wallet addresses are known to execute block trades, limiting front-running based on wallet monitoring.

For more on how Definitive's routing works in a broader context, see our guides on solver-based DEX execution and gasless crypto trading.

Frequently Asked Questions

What is the difference between intent-based trading and a DEX aggregator?

A traditional DEX aggregator takes a market order and routes it across DEX pools to find the best price — but the router constructs and broadcasts the transaction directly. An intent-based protocol takes a signed intent from the trader and delegates execution to competing solvers who find the best path. The key difference is who constructs the execution: the aggregator's internal router vs. a competitive external solver network. In practice, the best aggregators incorporate intent-based elements, and the distinction is becoming less sharp.

Is intent-based trading safer than standard DEX transactions?

Intent-based trading has a different risk profile. It reduces MEV exposure because intents are not live transactions in a public mempool. It relies on solver network integrity and settlement guarantees. Properly designed settlement systems enforce minimum output guarantees cryptographically — if the solver doesn't deliver, the trade doesn't execute. The smart contract audit status of the settlement system is the relevant security variable.

Do I pay gas in intent-based systems?

In many intent-based systems, traders do not pay gas directly — solvers cover gas costs and recover them through the execution economics. Definitive goes further: gas is sponsored by the platform on all nine supported chains, meaning traders pay no gas regardless of order type or chain.

Can intent-based trading handle large orders?

Yes — and it is particularly well-suited for large orders. Solvers can access PMM liquidity that AMM pools cannot provide at comparable prices for block trades. The competition among solvers incentivizes finding the best possible execution path, which compounds in value as order size grows. TWAP execution distributes large orders across time, further managing market impact.

Which protocols use intent-based trading?

CoWSwap is the most prominent intent-based DEX on Ethereum, using batch auctions and a competitive solver network. UniswapX (Uniswap's intent-based layer) uses a similar model. On Solana, Jupiter incorporates routing optimization that shares some intent-based characteristics. Definitive incorporates intent-based principles in its PMM routing — quoting liquidity providers compete to fill orders rather than the system routing to a fixed venue.

Ready to trade onchain with institutional-grade execution? Try Definitive — gasless, multichain, and built for serious traders.