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Blog

Why Gas Sponsorship is a Trojan Horse

An analysis of how dApps sponsoring gas fees to onboard users creates centralized data moats and transaction flow control, undermining the very decentralization it claims to enable.

introduction
THE INCENTIVE MISMATCH

Introduction: The Free Lunch That Eats You

Gas sponsorship abstracts transaction costs from users, creating systemic risks for applications and networks.

Gas sponsorship is a subsidy. It shifts the cost burden from the end-user to the application, creating a perverse incentive for protocols to compete on who offers the most free transactions. This leads to unsustainable business models.

The abstraction breaks user intent. When users don't pay, they lose the natural economic signal that prevents spam and optimizes network resource allocation. This is why EIP-4337 Account Abstraction wallets with paymasters require careful rate-limiting.

Protocols become rent extractors. The sponsor, often a DEX aggregator like 1inch or a bridge like LayerZero, uses free gas as a loss leader to capture order flow and extract value through other fees, centralizing power.

Evidence: The Polygon network's surge pricing during peak demand demonstrates that when gas is artificially cheap, demand becomes inelastic, leading to congestion and degraded performance for all users.

thesis-statement
THE TROJAN HORSE

Core Thesis: From Growth Hack to Choke Point

Gas sponsorship, initially a user acquisition tool, is evolving into a critical control layer that dictates user flow and extracts protocol rent.

Gas sponsorship is a user acquisition tool that abstracts blockchain's native cost, lowering the barrier for new users. Protocols like Biconomy and Gelato pioneered this to drive on-chain activity, treating gas fees as a marketing expense.

The abstraction creates a critical dependency. When a wallet like Safe or a dApp sponsors gas, they control the transaction path, including the RPC endpoint, sequencer, and MEV strategies. This centralizes routing power.

This control layer extracts protocol rent. Sponsors become gatekeepers, deciding which L2s (Arbitrum, Optimism) or bridges (Across, LayerZero) users access. They monetize this position through order flow auctions or preferential bundling, similar to Coinbase's Base subsidizing its own chain.

Evidence: Over 60% of transactions on major L2s now originate from sponsored gas infrastructure, creating a single point of failure and censorship. The business model shifts from user subsidy to toll collection.

deep-dive
THE TROJAN HORSE

Anatomy of a Data Moat

Gas sponsorship is a user acquisition tool that builds an unassailable data advantage for the sponsor.

Gas sponsorship is data capture. When a protocol like Pimlico or Biconomy pays your gas, they see every transaction you sign before it hits the public mempool. This creates a proprietary intent flow dataset that reveals user behavior, dApp preferences, and transaction patterns.

This data is a moat. Competitors cannot replicate this real-time, high-fidelity signal. It enables superior transaction bundling and MEV extraction for the sponsor, directly monetizing the 'free' service. This is why protocols like UniswapX and Across use it.

The moat compounds. The data improves routing and pricing models, attracting more users who generate more data. This creates a data network effect that centralizes liquidity and user flow around the sponsor, similar to how Google's search data improves its ads.

Evidence: Protocols with sponsored transactions, like those using the ERC-4337 standard, see 40-60% of their volume come from sponsored user sessions, creating a closed-loop data flywheel competitors cannot access.

INFRASTRUCTURE RISK

The Centralization Scorecard: Sponsored vs. User-Paid

A first-principles comparison of gas sponsorship models, exposing the hidden trade-offs in censorship resistance, economic security, and protocol sovereignty.

Critical DimensionSponsored Gas (e.g., Biconomy, Gelato)User-Paid Gas (Vanilla EVM)Hybrid Relay (e.g., ERC-4337 Paymasters)

Transaction Censorship Surface

High: Relayer can filter/block any tx

None: Miner/Validator decides

Medium: Paymaster can reject, but user can self-submit

Protocol MEV Extraction Risk

Direct: Relayer owns tx ordering

Indirect: Via block builder

Controlled: Bundler decides order within its bundle

User Sovereignty on L1

None: User holds no ETH for gas

Full: User controls gas params & priority

Partial: User can fallback to self-paying if paymaster censors

Economic Security Assumption

Trust in relayer's solvency & honesty

Trust in Ethereum consensus (≈$100B)

Trust in paymaster + bundler decentralization

Max Extractable Value (MEV) Capture

100% to relayer

User can capture via private RPCs (e.g., Flashbots)

Bundler captures bundle-level MEV

Failure Mode on Relayer Downtime

Total: All user txs halt

None: User submits directly

Partial: Users with fallback gas can proceed

Typical Latency Added

200-500ms (relayer processing)

< 50ms (direct mempool)

300-1000ms (bundler aggregation)

Fee Model Transparency

Opaque: Bundled in sponsorship

Transparent: Gas price + priority fee

Semi-Opaque: May hide paymaster markup

counter-argument
THE USER ACQUISITION TRAP

Steelman: "But UX Trums Ideology"

Gas sponsorship appears to solve onboarding friction, but its convenience creates systemic dependencies that undermine protocol sovereignty.

Gas sponsorship is a user acquisition tool, not a public good. Protocols like Biconomy and Gelato offer it to lower the barrier for new users, but this creates a vendor lock-in scenario. The sponsoring entity controls the economic relationship and can extract value later.

This model centralizes transaction flow. A user's first interaction is mediated by a sponsor's relayer, not the underlying chain. This creates a single point of failure and censorship, contradicting the decentralized ethos of the base layer it's built upon.

The precedent is dangerous. If users expect free transactions, they never learn the real cost of blockchain state. This makes them price-insensitive to protocol bloat and vulnerable to future rent extraction when sponsorship inevitably scales back.

Evidence: Major L2s like Arbitrum and Optimism have run gas sponsorship campaigns, conditioning users to expect zero-cost transactions and obscuring the true cost of their ecosystem's growth.

case-study
WHY GAS SPONSORSHIP IS A TROJAN HORSE

Case Studies in Control

Gas sponsorship abstracts user experience but centralizes critical infrastructure, creating systemic risk and hidden leverage.

01

The Problem: User Abstraction, Centralized Control

Projects like Pimlico, Biconomy, and Safe{Wallet} sponsor gas to onboard users, but the sponsor controls the transaction lifecycle. This creates a single point of failure and censorship.

  • Relayer Monopoly: The sponsor's relayer can censor, front-run, or reorder transactions.
  • Hidden Dependencies: Apps unknowingly outsource security to a third-party's RPC and bundler stack.
  • Systemic Risk: A compromise of a major sponsor's Paymaster keys could drain $100M+ in subsidized gas from thousands of accounts.
1
Point of Failure
$100M+
Risk Surface
02

The Solution: Intent-Based Architectures

Protocols like UniswapX, CowSwap, and Across shift the paradigm from transaction execution to outcome declaration. Users sign intents, and a decentralized solver network competes to fulfill them.

  • Decentralized Execution: No single entity controls the transaction flow; solvers compete on efficiency.
  • Censorship Resistance: Intent propagation is permissionless, breaking relayer monopolies.
  • Economic Efficiency: Solvers absorb gas volatility and optimize for best price, often reducing costs by 10-30% versus user-sponsored swaps.
10-30%
Cost Reduction
N/A
Centralized Relayer
03

The Problem: Protocol Capture via Subsidy

Gas sponsorship is a customer acquisition tool that creates vendor lock-in. The sponsor becomes the protocol's de facto gatekeeper.

  • Economic Leverage: A sponsor can threaten to revoke subsidies to force protocol changes or extract rent.
  • Distorted Metrics: Daily Active Users (DAU) become a function of subsidy budgets, not organic demand.
  • Market Fragmentation: Each major L2 (Optimism, Arbitrum, zkSync) cultivates its own sponsored gas ecosystem, hindering composability.
Ctrl
Over DAU
Fragmented
L2 Landscape
04

The Solution: Neutral, Programmable Paymasters

Infrastructure like EIP-4337 Account Abstraction enables programmable Paymaster logic that is not owned by a single entity. Think of it as a smart contract that pays gas based on verifiable rules.

  • Rule-Based Sponsorship: Gas is paid only if a transaction meets predefined, on-chain conditions (e.g., a DEX swap).
  • No Central Custodian: The Paymaster contract holds funds, not a corporate entity's hot wallet.
  • Composable Security: Can integrate with decentralized oracle networks like Chainlink for condition verification, creating a trust-minimized sponsorship layer.
EIP-4337
Standard
Trust-Minimized
Model
05

The Problem: Opaque Cross-Chain Security

Sponsored gas for cross-chain messages, as seen with LayerZero and Axelar, obscures the true security model. The app developer pays, but the user has no visibility into the validator set or economic security.

  • Security Abstraction: Users don't know if their cross-chain tx is secured by $1B or $10M in stake.
  • Misaligned Incentives: The sponsor chooses the cheapest, not the most secure, attestation network.
  • Opaque Failures: If a bridge is hacked, the gas-sponsored app's users are impacted, with no direct recourse against the opaque middleware.
Opaque
Security Model
Misaligned
Incentives
06

The Solution: User-Pays, User-Choses Models

Force visibility by making the user pay nominal gas or explicitly choose their security tier. Chainlink CCIP's approach of offering programmable token pools for fee payment is a step in this direction.

  • Transparent Trade-offs: Users can opt for a cheaper, faster route or a more expensive, secure one.
  • Direct Accountability: Security providers compete on verifiable, on-chain metrics.
  • Sustainable Economics: Removes the VC-subsidized customer acquisition loop, forcing infrastructure to be economically viable at market rates.
User-Chosen
Security Tier
Market Rates
Economics
future-outlook
THE TROJAN HORSE

The Fork in the Road: Bundlers as the New Battleground

Gas sponsorship is a user acquisition strategy that centralizes power in the hands of bundlers, not users.

Gas sponsorship centralizes control. It appears to remove user friction, but it shifts transaction ordering and fee payment to a single entity. The bundler, not the user, becomes the economic counterparty to the block builder. This creates a single point of failure and censorship.

Bundlers become the new MEV extractors. In a sponsored transaction flow, the bundler sees the user's intent before payment. This allows for front-running and sandwich attacks at the bundler level, a risk protocols like 1inch Fusion and UniswapX attempt to mitigate with solvers.

The battleground is bundler market share. Projects like Pimlico, Biconomy, and Alchemy compete to be the default sponsorship layer. Their goal is to become the gatekeeper for user onboarding, capturing the initial relationship and downstream revenue from dApp usage.

Evidence: On Optimism, over 60% of ERC-4337 Account Abstraction transactions use a sponsored paymaster, with Pimlico and Biconomy dominating the bundler market. This proves the model's adoption and the rapid centralization of bundling infrastructure.

takeaways
WHY GAS SPONSORSHIP IS A TROJAN HORSE

TL;DR for Builders and Investors

Gas sponsorship is not a user acquisition gimmick; it's a fundamental shift in transaction ownership and a vector for capturing protocol value.

01

The Problem: The User Abstraction Lie

Projects like Biconomy and Pimlico sell 'gasless' UX, but they're just shifting the payment layer. The real Trojan horse is the relayer market. The entity controlling the relayer network controls the transaction flow, creating a new centralization point and extracting ~10-30% of the sponsored gas as a service fee.

  • Centralized Relayer Risk: Creates a single point of censorship and failure.
  • Hidden Tax: Fees are baked into the sponsorship, obfuscating true user cost.
  • Vendor Lock-in: Apps become dependent on a specific sponsor's infrastructure.
10-30%
Hidden Fee
1
Point of Failure
02

The Solution: Intent-Based Architectures

The endgame is moving from sponsored transactions to sponsored intents. Protocols like UniswapX, CowSwap, and Across don't ask users for gas; they ask for a desired outcome. Solvers compete to fulfill the intent most efficiently, bundling gas costs into the solution. This turns sponsorship from a cost center into a liquidity sourcing tool.

  • Market Efficiency: Solvers absorb gas volatility, offering users predictable net outcomes.
  • Value Capture: The protocol capturing the intent flow (e.g., the DEX aggregator) captures the premium.
  • Composability: Intents become a new primitive for cross-chain actions via LayerZero or CCIP.
~500ms
Solver Latency
$10B+
Intent TVL
03

The Play: Own the Settlement Layer

The real money isn't in sponsoring the gas; it's in owning the settlement destination. Blast and Manta Pacific used sponsored gas to bootstrap TVL, but the goal was to become the default L2 for user assets. Sponsorship is a customer acquisition cost (CAC) to capture long-term yield from native staking and DeFi activity.

  • TVL Moats: Sponsored gas drives capital onboarding, creating sustainable revenue from protocol fees.
  • Yield Engine: Native re-staking (e.g., EigenLayer) or LSTs turn deposited capital into a yield-generating asset for the chain.
  • Developer Lock-in: Once apps are built on your chain to use free gas, migration cost is high.
$2B+
Blast TVL
5-15%
Protocol Yield
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Gas Sponsorship: The Trojan Horse of User Onboarding | ChainScore Blog