Crypto Gloss

Intents-Based Trading

Definition: Intents-based trading is a decentralized exchange design model in which users submit a high-level description of what they want to achieve — an “intent” — rather than a specific transaction to execute, and competitive third-party solvers compete to find the best execution path for that intent, often resulting in better prices and lower MEV exposure than traditional on-chain swaps.

How It Works

In traditional AMM-based DEX trading (e.g., Uniswap v2/v3):

  1. A user constructs a transaction specifying the exact trade path
  2. The transaction is submitted on-chain
  3. Validators/miners sequence the transaction, exposing it to MEV extraction during the mempool window

In intents-based trading:

  1. A user signs an intent — for example: “I want to swap 1 ETH for at least 3,200 USDC within 10 minutes”
  2. The signed intent is broadcast to a network of solvers
  3. Solvers compete to find the best execution (across multiple DEXes, liquidity sources, off-chain inventory, or combinations)
  4. The winning solver submits the actual transaction on-chain on the user’s behalf
  5. If solvers cannot beat the user’s minimum, the intent expires and the user pays nothing

Key Properties

  • MEV protection — The user never submits an exposed mempool transaction; the solver assumes MEV risk and removes it from the user experience
  • Negative fees possible — In competitive solver markets, solvers pay for order flow; users can receive better prices than expected (similar to payment-for-order-flow dynamic in TradFi)
  • Expressiveness — Intents can be multi-step, multi-asset, or cross-chain in advanced implementations

Major Protocols Using Intents

Protocol Type Notes
CoW Protocol Batch auction solver Pioneered intent-based trading; batches trades to reduce MEV and enable COW (Coincidence of Wants)
UniswapX Intent + solver settlement Uniswap’s 2023 upgrade; solvers bid on user swap intents
1inch Fusion RFQ + solver model 1inch’s gasless, MEV-protected swap product
Flashbots SUAVE Infrastructure layer Cross-chain intent execution infrastructure
Across Protocol Cross-chain intents Specializes in cross-chain bridge intents at speed

Coincidence of Wants (CoW)

Distinction from Limit Orders

  • Limit orders specify price as the condition
  • Intents can specify any outcome — price, cross-chain destination, fee conditions, time windows, bundled actions, etc.

Trends (2024–2025)

  • Ethereum’s ERC-7521 (General Intents for Smart Contract Wallets)
  • ERC-7620 and ERC-4337 composability for intent + account abstraction
  • Cross-chain “super intents” enabling single-signature cross-chain asset moves

Related Terms

Last updated: 2026-04