Permissionless pools do not guarantee aggregator support
Explain the gap between a pool existing onchain and a quote service indexing, integrating and selecting it.
Explore the reference
DEX essentials — page 2
Start with what an aggregator does, what a quote means and how an on-chain trade settles.
44 guides · Page 2 of 3
Pool spot price vs the price of an actual swap
Distinguish an infinitesimal pool price, a chart reference and the average exchange rate available for a full swap.
Reading a DEX trading pair without reversing the price
Read base and quote units correctly, invert displayed rates, and distinguish a reciprocal reference price from an executable reverse trade.
Router contract vs DEX aggregator: two different jobs
Understand route search, transaction construction and onchain execution without confusing a router contract with an aggregation service.
Sender, spender and recipient: who does what in a swap?
Identify the account that signs, the contract authorized to spend, and the address that receives the output of a swap.
Swap settlement vs transaction confirmation
Distinguish successful swap execution from transaction inclusion and the chain’s later confirmation or finality guarantees.
Swap simulation vs actual execution
Learn what a successful swap simulation establishes and why future execution can still face different market or account state.
Wallet swaps and aggregator websites: where execution comes from
Learn how wallet swap buttons use quote providers and settlement contracts, and why the wallet interface alone does not identify execution.
What a market swap means on a DEX
Understand immediate-execution swap requests and why a DEX market order can still contain strict price and amount limits.
What a settlement contract does after a quote is selected
Separate the contract that validates and applies a trade from the offchain system that searched for an attractive route.
What a solver does for a swap order
Follow how a solver searches for compliant execution, constructs a settlement and participates in a protocol-defined competition.
What a uniform clearing price means in a batch auction
Understand clearing-price consistency, why different token pairs use different rates and how directed-pair rules differ from a universal price claim.
What an intent means in decentralized trading
Understand signed outcome constraints, solver-selected routes and the difference between an intent and an executable transaction.
What atomic execution means for a DEX route
Understand all-or-nothing same-chain route execution, its transaction boundary, and why separate approvals or cross-chain steps are different.
What liquidity aggregation means in practice
See why aggregation accesses independent pools and quotes rather than merging every venue into a single shared reserve.
What order surplus means after an intent is filled
Calculate the improvement over a signed limit for sell and buy orders while keeping surplus separate from investment profit.
What request-for-quote liquidity adds to a DEX route
Explain how professional market-maker offers enter an aggregated route and why offchain quote formation can still lead to onchain settlement.
Why an aggregator cannot create missing liquidity
Understand why a router can find available markets but cannot manufacture buyers, reserves or a viable exit for an unsupported token.
Why reaching a limit price may not fill a DEX order
Explain why a chart touching a target does not establish that a DEX limit order had executable liquidity and valid settlement conditions.
Why routes use a wrapped native token
Understand why routes use wrapped native assets as token-compatible intermediaries and why wrapping is distinct from a market trade.