// GLOSSARY -- AGENTIC FINANCE

What is an Agent Wallet?

1 min read Updated

An agent wallet is a cryptocurrency wallet controlled by an AI agent rather than a human, holding funds the agent spends autonomously to execute transactions, pay for services, and interact with blockchain protocols.

WHY IT MATTERS

For an AI agent to participate onchain, it needs its own wallet — a keypair for signing transactions. Unlike human wallets where a person reviews each transaction, agent wallets operate programmatically.

Agent wallets can be EOAs (externally owned accounts) or smart contract wallets. Smart wallets are preferred — they support spending limits, session keys, and multi-sig natively.

The key question is custody: who holds the private key? Options include the agent framework, cloud KMS, or MPC setups — each with trade-offs between convenience, security, and decentralization.

HOW POLICYLAYER USES THIS

PolicyLayer wraps agent wallets with non-custodial spending controls. Regardless of wallet type, PolicyLayer enforces rules without ever taking custody of the private key.

FREQUENTLY ASKED QUESTIONS

How is an agent wallet different from a regular wallet?
Functionally identical — both hold keys and sign. The difference is the controller: human manual review vs. AI programmatic decisions. This requires additional safety infrastructure.
EOA or smart account?
Smart accounts (ERC-4337/7702) are generally better — programmable validation, session keys, and native spending limits. EOAs need external policy enforcement.
How much should I fund it?
Only what the agent needs for its current task. Over-funding creates unnecessary risk. PolicyLayer enforces budgets even if the wallet holds more.

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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