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Blog

The Future of Transactions: Intent-Based, Not Signature-Based

Smart accounts are the gateway to intent-centric architectures where users specify desired outcomes and off-chain solvers compete to fulfill them. This post deconstructs the shift from imperative signing to declarative intent.

introduction
THE SHIFT

Introduction

Blockchain transactions are evolving from explicit, signature-based commands to high-level, outcome-focused intents.

The signature is a liability. Current blockchain transactions require users to specify exact execution paths, exposing them to MEV extraction and complex, error-prone steps.

Intents declare the 'what', not the 'how'. Users submit desired outcomes (e.g., 'swap X for Y at best price'), delegating pathfinding and execution to specialized solvers like those in UniswapX or CowSwap.

This shifts complexity off-chain. The network's role changes from a dumb executor to a settlement layer for competing solvers, optimizing for cost and speed.

Evidence: Intent-based architectures process over $10B in volume across protocols like Across Protocol and UniswapX, demonstrating user preference for abstraction.

thesis-statement
THE UX BOTTLENECK

The Core Argument: Signatures Are a UX Dead End

The signature-first transaction model creates an insurmountable barrier to mainstream adoption by forcing users to manage technical complexity.

Signatures demand technical omniscience. Users must specify every low-level parameter—gas, slippage, routes—for actions like swaps or bridging. This is a UX dead end that prevents billions from interacting with blockchains directly.

Intents invert the responsibility model. Users declare a desired outcome (e.g., 'get 1 ETH on Arbitrum'). Specialized solvers, like those in UniswapX or CowSwap, compete to fulfill it optimally. The user signs an intent, not a transaction.

This shift is inevitable. The success of ERC-4337 Account Abstraction and intent-based bridges like Across proves the market demands abstraction. Signatures are a protocol-layer detail that must be abstracted away.

Evidence: Over 60% of swaps on CowSwap use its intent-based CoW Protocol, which consistently outperforms user-specified on-chain routes on price improvement, demonstrating superior outcomes without user expertise.

THE USER EXPERIENCE FRONTIER

Signature vs. Intent: A Feature Matrix

A first-principles comparison of transaction execution paradigms, contrasting the dominant signature-based model with emerging intent-based architectures.

FeatureSignature-Based (Status Quo)Intent-Based (Future)Key Protocols

Execution Guarantee

Specific transaction path

Desired outcome only

UniswapX, CowSwap

User Responsibility

Gas estimation, slippage, MEV

None (delegated to solvers)

Across, Anoma, SUAVE

Atomic Composability

Across, UniswapX

Optimality (Price & Route)

User-defined, often suboptimal

Solver-optimized for best execution

CowSwap, 1inch Fusion

Cross-Chain Settlement

Requires bridging & signing on each chain

Single signature, atomic cross-chain settlement

Across, LayerZero, Chainlink CCIP

Gas Fee Model

User pays for all failed attempts

User pays only for successful execution

UniswapX, Gasless Relayers

MEV Exposure

High (front-running, sandwiching)

Low (solver competition internalizes MEV)

CowSwap, Flashbots SUAVE

Typical Fee for Swap

0.3% - 0.5% + gas

0.1% - 0.3% (gas often included)

UniswapX, 1inch Fusion

deep-dive
THE MECHANICS

Architectural Deep Dive: How Intents Actually Work

Intent-based systems invert the transaction model by decoupling user declaration from execution, enabling a new design space for efficiency.

Declarative vs. Imperative Logic defines the paradigm shift. A user submits a signed intent—a statement of a desired outcome like 'swap X for Y at price Z'—instead of a specific, signed transaction. This delegates execution complexity to a network of solvers who compete to fulfill the intent optimally.

The Solver Market is the competitive engine. Protocols like UniswapX and CowSwap run auctions where specialized solvers bid to fulfill user intents. This competition drives execution quality and cost efficiency, as solvers profit from arbitrage and MEV extraction opportunities within the constraints.

Architectural Separation of Concerns is the core innovation. The user's role is reduced to signing a declarative payload, while the system handles routing, liquidity aggregation, and risk. This enables gasless transactions and complex cross-chain swaps that a single transaction cannot express.

Evidence: UniswapX processed over $7B in volume by abstracting gas and routing complexity into a solver network, demonstrating the demand for declarative UX.

protocol-spotlight
INTENT ARCHITECTS

Protocol Spotlight: Who's Building This?

A new stack is emerging to abstract away transaction complexity, shifting risk and execution logic from users to specialized networks.

01

Anoma: The Foundational Intent Machine

Anoma isn't an app; it's a protocol for intent-centric coordination. It provides the base layer for intent expression, matching, and settlement.

  • Key Benefit: Enables multi-chain, multi-asset atomic swaps without shared liquidity.
  • Key Benefit: Its Typhon consensus enables private intent matching, solving MEV and frontrunning at the protocol level.
0
Shared Liquidity Needed
Full
Intent Privacy
02

Essential & Suave: The MEV-Aware Execution Layer

These protocols retrofit intent-based, MEV-aware execution into existing blockchains like Ethereum.

  • Essential: Uses a decentralized solver network to find optimal execution paths, capturing value for users.
  • Suave (by Flashbots): Aims to become the preferred execution environment for all chains, keeping MEV value with users/validators.
>90%
MEV Returned
Universal
Chain Support
03

UniswapX & CowSwap: The Application-Layer Pioneers

These DEXs are proving the user experience benefits of intents today, abstracting away gas and slippage.

  • UniswapX: Uses a network of fillers to compete for off-chain order flow, guaranteeing prices and paying gas.
  • CowSwap: Leverages batch auctions and Coincidence of Wants for MEV-protected, gasless trades.
Gasless
User Experience
$10B+
Cumulative Volume
04

Across & LayerZero: The Cross-Chain Intent Bridges

These protocols treat cross-chain transfers as intents, using competitive solver networks for speed and cost.

  • Across: Uses a unified auction where relayers bid to fulfill transfers, resulting in ~1-2 min finality.
  • LayerZero: With its OFT standard, enables programmable cross-chain intents, moving beyond simple asset transfers.
~90s
Avg. Time
-60%
vs. AMBs
05

The Problem: Solver Centralization Risk

The efficiency of intent-based systems depends on a competitive solver network. Dominance by a few solvers recreates the extractive order flow problems of traditional finance.

  • Key Risk: Solver cartels could collude to offer worse prices.
  • Mitigation: Protocols like CowSwap use batch auctions to enforce uniform clearing prices, limiting solver power.
Critical
Design Challenge
Ongoing
Research Focus
06

The Solution: Standardized Intent Language (EIP-...?)

For intents to become the universal standard, we need a shared language for expression and fulfillment, similar to ERC-20 for tokens.

  • Key Benefit: Allows any wallet to create intents readable by any solver network.
  • Key Benefit: Enables composability of intents across different applications and protocols, unlocking new use cases.
Interop
Primary Goal
TBD
Standard Needed
risk-analysis
THE INTENT TRADEOFF

The Bear Case: Centralization and Complexity Risks

Intent-based architectures promise a simpler user experience, but they introduce new systemic risks by shifting trust and control to centralized infrastructure.

01

The Solver Oligopoly

Intent execution relies on a competitive market of solvers. In practice, liquidity and MEV extraction concentrate power. The result is a new centralization vector where ~3-5 dominant solvers control the majority of cross-chain flow. This creates systemic risk and potential for censorship.

>70%
Flow Controlled
3-5
Dominant Solvers
02

The Black Box Execution Problem

Users sign an 'intent' (a desired outcome), not a transaction. This delegates full control of execution path and logic to opaque off-chain systems. Users cannot audit the route, exposing them to hidden fees, suboptimal pricing, and complex MEV extraction they cannot see or consent to.

0%
Route Transparency
Hidden
True Cost
03

Protocol Bloat and Fragility

Intent standards (like UniswapX, CowSwap) and infrastructure (Across, Socket, LayerZero) create a sprawling dependency graph. Each new intent type adds complexity, increasing the attack surface and integration overhead. A failure in one solver or bridge can cascade, breaking the 'simple' user abstraction.

10+
Critical Dependencies
Cascading
Failure Risk
future-outlook
THE INTENT STANDARD

Future Outlook: The 24-Month Horizon

Transaction execution will shift from user-signed actions to user-declared outcomes, abstracting complexity and optimizing for final state.

Intent-based architectures dominate. Users declare a desired outcome (e.g., 'swap X for Y at best rate') instead of signing specific transactions. This outsources execution to a competitive solver network, as seen in UniswapX and CowSwap, which finds optimal paths across DEXs and bridges.

Signatures become a liability. The current model of explicit, pre-defined transactions creates systemic friction and failed txs. Intent abstraction removes this, enabling gas sponsorship, MEV protection, and atomic cross-chain swaps via protocols like Across and Socket without user intervention.

The wallet is the new OS. Wallets like Rainbow and Rabby will evolve into intent orchestrators. They will manage user preferences, negotiate with solvers, and guarantee outcomes, making the blockchain's operational layer invisible to the end-user.

Evidence: UniswapX processed over $7B in volume in its first 6 months by abstracting gas and MEV, proving user demand for declarative transactions over manual execution.

takeaways
THE PARADIGM SHIFT

Key Takeaways

The next evolution in user experience moves from explicit execution to declarative outcomes, abstracting away blockchain complexity.

01

The Problem: Signature-Based UX is a Dead End

Users are forced to act as their own execution layer, manually signing every step. This creates friction, failed transactions, and MEV leakage.\n- User Burden: Requires deep technical knowledge of gas, slippage, and routing.\n- Inefficiency: Single-chain, sequential execution misses cross-chain opportunities.\n- Value Leakage: Predictable transactions expose users to front-running and sandwich attacks.

~40%
Failed Tx
$1B+
MEV Extracted
02

The Solution: Declarative Intents & Solver Networks

Users state what they want (e.g., 'Swap X for Y at best rate'), not how to do it. A competitive network of solvers (like UniswapX, CowSwap, Across) fulfills it optimally.\n- Abstraction: User specifies outcome; solver handles routing, gas, and batching.\n- Efficiency: Solvers compete on price, enabling cross-chain, cross-venue execution.\n- MEV Resistance: Batch auctions and encrypted mempools (e.g., SUAVE) protect users.

20-30%
Better Price
~500ms
Solver Latency
03

The Infrastructure: Universal Intent Layer

A shared standard and marketplace for intent expression and fulfillment, separating the declaration from execution. This is the core thesis behind Anoma and Essential.\n- Composability: Intents become a new primitive, enabling complex, conditional workflows.\n- Interoperability: A standard schema allows any solver on any chain (via LayerZero, CCIP) to participate.\n- Monetization: Solvers earn fees for superior execution, not just transaction ordering.

10x
UX Simplicity
$10B+
Future TVL
04

The Trade-off: Centralization of Trust

Intent-based systems introduce a new trust vector: the solver or aggregator. Users trade control over execution for convenience and better prices.\n- Solver Risk: Users must trust the solver to execute faithfully and not withhold funds.\n- Regulatory Surface: Aggregators acting as principals may face stricter regulatory scrutiny.\n- Counterparty Dependency: Relies on a healthy, competitive solver market to prevent rent-seeking.

1-of-N
Trust Model
Critical
Solver Incentives
05

The Catalyst: Account Abstraction (ERC-4337)

Smart contract wallets are the necessary on-ramp, enabling users to delegate execution logic and pay fees in any token. This makes intents practically viable.\n- Session Keys: Users can grant limited permissions for recurring intents (e.g., DCA).\n- Gas Abstraction: Solvers can sponsor transactions, removing the need for native gas tokens.\n- Recovery: Social recovery and multi-sig logic can be embedded into intent policies.

100M+
Potential Users
-99%
Gas Complexity
06

The Endgame: Autonomous Agent Economy

Intents evolve into persistent, goal-seeking agents. Your wallet becomes an autonomous financial entity that manages capital based on high-level directives.\n- Continuous Optimization: Agents constantly rebalance portfolios or hunt for yield across DeFi.\n- Cross-Protocol Logic: Executes complex strategies involving Aave, Compound, and Uniswap in one intent.\n- New Business Models: Intent-centric protocols capture value by facilitating agent coordination.

24/7
Execution
New Stack
Agent SDKs
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