// GLOSSARY -- WEB3 INFRASTRUCTURE

What is a Smart Wallet?

1 min read Updated

A smart wallet is a user-facing cryptocurrency wallet built on smart contract technology (account abstraction) that provides enhanced features like social login, gas sponsorship, session keys, spending limits, and recovery — making blockchain interactions simpler and more secure.

WHY IT MATTERS

Smart wallets are the user-friendly face of account abstraction. While 'smart accounts' and 'smart contract wallets' are technical terms, 'smart wallets' emphasize the UX improvements: sign up with email, no gas management, built-in spending controls, and easy recovery.

Examples include Coinbase Smart Wallet, Safe{Wallet}, and various embedded wallet products. These wallets abstract blockchain complexity while providing the programmability of smart contracts under the hood.

For AI agents, smart wallets provide the ideal foundation: programmable validation (spending controls), gas abstraction (agents don't need ETH), session keys (scoped signing authority), and modular extensions (add new capabilities without wallet migration).

HOW POLICYLAYER USES THIS

PolicyLayer adds programmable spending rules to smart wallets used by agents — leveraging the smart contract foundation to enforce limits, restrictions, and budgets that are tamper-proof and verifiable on-chain.

FREQUENTLY ASKED QUESTIONS

What's the difference between a smart wallet and a smart account?
They overlap significantly. 'Smart account' emphasizes the technical infrastructure (smart contract-based). 'Smart wallet' emphasizes the user-facing product (friendly UX). A smart wallet is built on a smart account.
Which smart wallets support agents?
Coinbase Smart Wallet, ZeroDev (Kernel), and Safe{Wallet} all support programmatic interaction suitable for agents. Each provides APIs for wallet creation, session key management, and transaction submission.
Are smart wallets more expensive than regular wallets?
Deployment costs gas (one-time). Transactions cost slightly more due to smart contract execution. But gas sponsorship (paymasters) can offset this, and batching often makes total costs lower.

FURTHER READING

Enforce policies on every tool call

Intercept is the open-source MCP proxy that enforces YAML policies on AI agent tool calls. No code changes needed.

npx -y @policylayer/intercept
github.com/policylayer/intercept →
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