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account-abstraction-fixing-crypto-ux
Blog

The Future of RPC Endpoints: From Gas Station to User Operation Orchestrator

General-purpose JSON-RPC endpoints are a relic. The new infrastructure standard for account abstraction is a bundled service that manages the entire UserOp lifecycle from simulation to sponsorship, fundamentally changing how dApps interact with blockchains.

introduction
THE SHIFT

Introduction

The RPC endpoint is evolving from a passive data pipe into an active orchestrator of user intents and operations.

RPCs are not gas stations. The legacy model of a simple JSON-RPC relay for broadcasting signed transactions is obsolete. Modern applications require endpoints that construct, simulate, and submit complex user intents, as seen in ERC-4337 Account Abstraction and UniswapX.

The orchestrator layer emerges. This new infrastructure tier handles intent resolution, gas sponsorship, and cross-chain operation batching. It abstracts wallet complexity, turning a user's desired outcome into an executable on-chain bundle, a paradigm pioneered by Stackup and Alchemy's Account Kit.

Performance metrics are inverted. Success is no longer measured in raw requests per second, but in user operation success rate and simulation accuracy. A failed intent costs more in lost UX than a slow response.

thesis-statement
THE EVOLUTION

Thesis Statement

RPC endpoints are evolving from passive gas stations into active orchestrators of user intents, fundamentally restructuring the developer stack.

RPC endpoints are not utilities. They are the new control plane for application logic, shifting from simple data queries to executing complex, cross-chain user operations.

The gas station model is obsolete. A passive endpoint offering eth_gasPrice is insufficient for intent-based architectures like UniswapX or Across Protocol, which require transaction simulation and routing.

Providers like Alchemy and QuickNode are already pivoting, bundling services like ERC-4337 account abstraction tooling and MEV protection, proving the orchestration thesis in-market.

Evidence: The 90%+ market share of private RPCs for major dApps demonstrates that reliability and advanced features, not raw decentralization, are the primary purchase drivers.

market-context
THE INFRASTRUCTURE SHIFT

Market Context: The Bundler Wars Have Begun

The role of the RPC endpoint is evolving from a simple gas station to a sophisticated orchestrator of user operations.

RPCs are becoming bundlers. The standard JSON-RPC spec is insufficient for ERC-4337 account abstraction. Endpoints like Alchemy and Infura now bundle UserOperations, competing on execution efficiency and MEV capture.

The endpoint abstracts complexity. Developers no longer manage bundler infrastructure. Services like Stackup and Biconomy provide a single RPC call that handles paymaster sponsorship, gas estimation, and transaction simulation.

Performance defines the winner. The winning RPC-bundler will have the lowest latency for simulation and the highest inclusion rate. This requires deep mempool access and integration with builders like Flashbots.

Evidence: Alchemy's eth_sendUserOperation API handles 60% of AA transactions. Ankr's integration with Pimlico demonstrates the bundler-as-a-service model is the new baseline.

FROM STATIC PIPES TO DYNAMIC AGENTS

Infrastructure Evolution: RPC vs. Orchestrator

Compares the functional shift from traditional JSON-RPC endpoints to intent-based user operation orchestrators, highlighting the architectural and economic implications for dApp builders.

Core FunctionTraditional RPC (e.g., Alchemy, Infura)Enhanced RPC (e.g., Blast, Gateway.fm)User Operation Orchestrator (e.g., Stackup, Biconomy, Alchemy's "Kettle")

Primary Role

State query & transaction broadcast

State query + MEV-aware transaction routing

Intent fulfillment & cross-domain operation sequencing

Abstraction Level

Transaction (calldata, gas)

Transaction + Gas Sponsorship

User Intent (e.g., "swap X for Y on best venue")

Key Technical Dependency

EVM Execution Client (Geth, Erigon)

EVM Client + Private Transaction Pool

Account Abstraction (ERC-4337) Bundler & Paymaster

Fee Model

Per-request API subscription

API subscription + optional MEV share

Pay-per-successful-user-operation + gas markup

Latency to Finality (L2 Example)

~3-12 sec (OP Stack)

~3-12 sec + potential frontrunning protection

~12-60 sec (includes simulation & bundling delay)

Cross-Chain Capability

false (single chain)

true (via native intent solvers like Across, Socket)

Handles Failed User Ops

false (tx reverts, user pays)

true (Paymaster can sponsor simulation & revert gas)

Enables Gasless Onboarding

true (via sponsored meta-transactions)

true (native via Paymaster abstraction)

deep-dive
THE EXECUTION LAYER

Deep Dive: The Orchestrator Stack

RPC endpoints are evolving from simple gas stations into intelligent orchestrators of user operations across fragmented chains.

RPCs become intent orchestrators. The standard JSON-RPC endpoint is a passive gas station. The next generation, like those from Alchemy's Supernode or Blockdaemon, actively interprets user intents, routes them to optimal chains, and bundles operations.

Orchestration abstracts chain complexity. A user submits a single signed intent. The orchestrator handles chain selection, liquidity routing via Across/Stargate, and execution through UniswapX-style solvers, returning a unified result.

This creates a new performance layer. The orchestrator's speed and success rate, not raw RPC latency, become the key metrics. This shifts competition from infrastructure SLAs to execution intelligence and solver network quality.

Evidence: UniswapX already processes billions via off-chain intent settlement. RPC providers like Alchemy and QuickNode are building dedicated 'bundler' infrastructure to capture this flow.

protocol-spotlight
BEYOND BASIC JSON-RPC

Protocol Spotlight: Who's Building the Orchestrator

The next-generation RPC endpoint is evolving from a simple data pipe into a sophisticated orchestrator, bundling user intents with MEV protection, cross-chain settlement, and account abstraction.

01

The Problem: Vanilla RPCs Leak Value

Standard RPC endpoints are passive data relays, exposing user transactions to frontrunning and sandwich attacks while missing opportunities for optimal execution across chains and liquidity pools.

  • MEV Extraction: Users lose ~$1B+ annually to arbitrage bots.
  • Fragmented Liquidity: Manual bridging and swapping across chains like Ethereum, Arbitrum, and Solana is slow and costly.
  • Poor UX: Managing gas, approvals, and failed txns is a user-hostile nightmare.
$1B+
MEV Loss/Yr
~30s
Avg Bridge Time
02

Flashbots SUAVE: The Universal Solver

A decentralized block-building network that separates transaction ordering from execution, turning the RPC into a competitive marketplace for intent fulfillment.

  • Intent-Centric: Users submit desired outcomes (e.g., 'swap X for Y at best rate'), not raw transactions.
  • Cross-Chain Native: Solves and settles intents across any connected chain in a single block.
  • Proposer-Builder-Separation (PBS): Decentralizes MEV capture, returning value to users and apps.
0
Frontrunning
All Chains
Settlement Scope
03

UniswapX & CowSwap: App-Layer Orchestration

DEX aggregators are becoming intent-based orchestrators, using off-chain solvers and on-chain settlements via protocols like CoW Protocol.

  • Gasless Trading: Users sign orders; competing solvers fulfill them, paying gas.
  • Batch Auctions: Coincidence of Wants (CoWs) enables peer-to-peer settlement, eliminating AMM fees.
  • Cross-Chain Flow: UniswapX plans to use Across and other bridges for seamless cross-chain swaps.
$10B+
Volume
-99%
Failed Txns
04

LayerZero & CCIP: The Messaging Backbone

Omnichain interoperability protocols provide the secure messaging layer that allows orchestrators to execute intents across any blockchain.

  • Universal Messaging: Enables state changes and token transfers between Ethereum, Avalanche, Polygon, etc.
  • Programmable Transactions: Allows for complex cross-chain logic (e.g., borrow on Aave on one chain, farm yield on another).
  • Security First: Uses decentralized oracle and validator networks, unlike naive multisig bridges.
50+
Chains
~3s
Message Finality
05

The Solution: Bundled User Operations (ERC-4337)

Account abstraction turns the RPC into a true orchestrator by bundling multi-step transactions into a single, gas-abstracted user operation.

  • Session Keys: Enable seamless, batched interactions with dApps without repeated approvals.
  • Paymaster Integration: Allows sponsorships or payment in any token, abstracting gas entirely.
  • Atomic Composability: Bundles actions (swap, bridge, stake) into one fail-safe operation across the Ethereum and Polygon ecosystem.
1 Click
Complex Tx
-100%
Gas Worries
06

The Endgame: Autonomous Agent RPCs

The final evolution: RPC endpoints that act as autonomous agents, continuously optimizing a user's portfolio across DeFi protocols based on high-level intents.

  • Persistent Agents: Manage liquidity, yield, and risk 24/7 across Aave, Compound, Lido.
  • ML-Powered Routing: Dynamically selects the optimal chain and protocol based on real-time fees and yields.
  • Fully Abstracted: Users set a risk profile; the agent handles the rest, reporting via wallet notifications.
24/7
Uptime
+20% APY
Optimized Yield
counter-argument
THE INTEROPERABILITY STANDARD

Counter-Argument: Isn't This Just Vendor Lock-In?

Advanced RPCs avoid lock-in by standardizing on open protocols like ERC-4337 and EIP-7702, turning the endpoint into a universal orchestrator.

Standardization prevents proprietary lock-in. The core innovation is building atop open, permissionless standards like ERC-4337 for account abstraction and EIP-7702 for transaction sponsorship. This is the opposite of a closed API; it's a common language for user operations.

The RPC becomes a universal adapter. A provider like Alchemy's Account Kit or Stackup's Bundler doesn't own the user. It executes intents against a standardized interface, making the user's wallet and session key portable across any compliant provider.

Vendor lock-in exists at the data layer. True dependence comes from proprietary indexing and historical data access, which is why projects like The Graph and Covalent are critical. The execution layer, by design, commoditizes.

Evidence: The rapid adoption of ERC-4337 bundlers across chains demonstrates this. A Paymaster service from Biconomy or Pimlico works identically through any standard RPC, forcing competition on performance and price, not protocol.

risk-analysis
ARCHITECTURAL FRAGILITY

Risk Analysis: What Could Go Wrong?

Centralizing user operation orchestration creates new single points of failure and attack vectors.

01

The MEV Cartelization Problem

RPCs that bundle, order, and route transactions become the ultimate MEV extractors. This centralizes a critical market, creating a new rent-seeking layer between users and block builders.\n- Risk: Dominant RPCs like Alchemy or QuickNode could extract >50% of cross-chain MEV.\n- Outcome: User costs rise as competition shifts from L1 to the RPC layer, negating promised savings.

>50%
MEV Capture
New Rent
Seeking Layer
02

Intent-Based Systems as Censorship Vectors

Abstracting transaction construction to an RPC's solver network hands them unilateral censorship power. They can blacklist addresses or dApps at the protocol level, not just the transaction level.\n- Risk: A single RPC provider complying with OFAC could censor entire intent flows, more effectively than today's Flashbots-style block building.\n- Outcome: UniswapX or CowSwap intents become unfulfillable based on RPC policy, breaking application guarantees.

Protocol-Level
Censorship
Broken
App Guarantees
03

Solver Network Centralization & Liveness Risk

The economic efficiency of intent systems relies on a competitive solver market. In practice, a few sophisticated players (Flashbots SUAVE, Chainlink CCIP) will dominate, creating liveness risk.\n- Risk: A bug or attack on a dominant solver network (e.g., Across) could halt $100M+ in cross-chain intent flow for hours.\n- Outcome: Users revert to slow, manual transactions, destroying the UX value proposition of the 'orchestrator' RPC.

$100M+
Flow at Risk
Hours
Downtime Impact
04

The Privacy Paradox of User Abstraction

To orchestrate complex intents, the RPC must see the complete user transaction graph and wallet state. This creates a massive, centralized honeypot of behavioral and financial data.\n- Risk: A breach at an RPC provider like Infura would expose not just balances, but future trading intent and cross-chain portfolio strategy.\n- Outcome: Irreversible loss of financial privacy, enabling targeted front-running and phishing at scale.

Complete
Graph Exposure
Irreversible
Privacy Loss
05

Protocol Capture and Stagnation

If major RPCs tightly integrate with specific intent standards (e.g., ERC-4337, ERC-7677), they become de facto protocol governors. They can stifle innovation by not supporting new, competing standards.\n- Risk: An 'orchestrator' RPC becomes a bottleneck for protocol upgrades, similar to how MetaMask's dominance slowed wallet innovation.\n- Outcome: The infrastructure layer dictates application design, leading to ecosystem stagnation.

De Facto
Governance
Bottleneck
For Innovation
06

The Interoperability Fragmentation Trap

Each RPC will build its own proprietary solver network and cross-chain messaging layer (competing with LayerZero, CCIP, Wormhole). This fragments liquidity and security, recreating the bridge problem at a higher layer.\n- Risk: A user's intent fails because the RPC's chosen bridge for route A is incompatible with the solver's chosen bridge for route B.\n- Outcome: ~30% of complex cross-chain intents fail silently or require manual intervention, destroying trust.

~30%
Intent Fail Rate
Fragmented
Security
future-outlook
THE ORCHESTRATION LAYER

Future Outlook: The Intent-Centric Endgame

RPC endpoints will evolve from simple data pipes into intelligent orchestrators of user intents, abstracting execution complexity.

RPC as Orchestrator: The future RPC endpoint is an intent settlement layer. It receives a user's desired outcome, then coordinates solvers, sequencers, and bridges like Across or Stargate to fulfill it. The endpoint manages the entire cross-domain transaction lifecycle.

Gas Abstraction is Table Stakes: Simple gas sponsorship, as seen with Pimlico or Biconomy, is the first step. The endgame is full intent abstraction, where users sign high-level goals and the RPC network handles routing, slippage, and failure conditions.

Protocols Become Solvers: Major DeFi protocols like UniswapX and CowSwap already operate as intent-based systems. Future RPCs will treat these protocols as specialized solvers, dynamically selecting the optimal one based on cost, speed, and success probability.

Evidence: The rise of ERC-4337 and ERC-7579 provides the modular account and solver infrastructure. This standardizes the interface between the user's intent, the RPC orchestrator, and the decentralized solver network executing it.

takeaways
ACTIONABLE INSIGHTS

Takeaways

The RPC endpoint is evolving from a passive gas pump to an active orchestrator of user intents and cross-chain state.

01

The Problem: The Gas Station RPC

Today's public RPCs are dumb pipes that broadcast raw transactions, forcing wallets and dApps to handle complex logic like gas estimation and chain selection. This creates a ~30% transaction failure rate from underpricing and a fragmented user experience.

  • User Burden: Manual chain switching and gas tweaking.
  • Developer Overhead: Building and maintaining gas logic across chains.
  • Wasted Capital: Failed transactions burn gas on all chains.
30%
Tx Fail Rate
10+
Chains to Manage
02

The Solution: Intent-Based Abstraction

Next-gen endpoints like UniswapX and CowSwap solvers accept declarative intents ('I want this token'). The RPC becomes an orchestrator, finding the optimal path across EVM chains, Solana, and Cosmos via bridges like Across and LayerZero.

  • User Wins: One-click cross-chain swaps, guaranteed execution.
  • Protocol Wins: Access to deeper, aggregated liquidity.
  • RPC as Platform: Monetizes routing intelligence, not just requests.
1-Click
Cross-Chain
$10B+
Aggregate Liquidity
03

The Architecture: MEV-Aware & Stateful

The orchestrator RPC must be stateful, tracking mempools and validator sets across networks. It will integrate with Flashbots Protect-like services to shield users from frontrunning and optimize for finality, not just inclusion. This turns latency from a weakness into a strategic buffer.

  • MEV Protection: Bundle routing to minimize extractable value.
  • Finality Optimization: Routes to chains with fastest settlement (e.g., Solana, Near).
  • Predictive Pricing: Dynamic fees based on real-time network state.
~500ms
Settlement Target
-90%
MEV Leakage
04

The Business Model: From SaaS to Yield

RPC providers will shift from pure API subscription (SaaS) to capturing value from the transactions they enable. This mirrors the evolution from Infura to Coinbase's Base sequencer revenue. Fees will be taken as a percentage of saved gas or captured MEV, aligning incentives with user success.

  • Value Capture: Revenue share on saved costs and optimal routing.
  • Stake-for-Access: Tiered service levels based on staked tokens.
  • Protocol Partnerships: Direct integration and revenue sharing with AAVE, Uniswap.
Yield-Based
Pricing Model
1000x
Revenue TAM
05

The Competitors: Wallets vs. Infra

The battle for the orchestration layer will be between wallet aggregators (Rainbow, Rabby) and infrastructure giants (Alchemy, QuickNode). Wallets own the interface, but infra owns the global network state. The winner will be whoever best abstracts chain-specific complexity into a universal state graph.

  • Wallet Advantage: Direct user relationship, interface control.
  • Infra Advantage: Global network view, cross-chain liquidity relationships.
  • Winner's Trait: Superior state synchronization across L2s and alt-L1s.
2-Sided
Market Battle
Universal
State Graph
06

The Endgame: Autonomous Liquidity Network

The final form is an RPC that doesn't just route transactions but actively manages liquidity positions across chains via protocols like Connext and Chainlink CCIP. It becomes an autonomous network that rebalances pools to meet demand, paid in liquidity provider fees. The endpoint is the network.

  • Automatic Rebalancing: Moves liquidity ahead of demand waves.
  • LP as a Service: Users stake, the RPC orchestrates yield farming.
  • Ultimate Abstraction: Users interact with assets, not chains.
Auto-LP
Yield Engine
Chain-Agnostic
User Experience
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RPC Endpoints Are Dead: The Rise of User Operation Orchestrators | ChainScore Blog