AgentGuardrail — On-Chain Spending Guardrails for AI Agents

Give your AI agents a wallet they can't abuse. AgentGuardrail deploys ERC-4337 smart accounts with policy-enforced spending limits. Agents cannot move funds beyond what you authorize — enforcement happens at the contract level, not just in software.

Homepage: https://agentguardrail.xyz

Why AgentGuardrail?

AI agents need to move money. The problem is trust: how do you let an agent trade, bridge, or pay for compute without risking runaway spending, compromised keys, or unauthorized actions?

AgentGuardrail solves this with:

• On-chain enforcement — AgentSmartAccount.validateUserOp() calls PermissionEnforcer before any transaction executes. Violating transactions revert. There is no override.
• Policy-bound accounts — every smart account is deployed against a policy that defines allowed actions, tokens, protocols, chains, and spend limits.
• Non-custodial — AgentGuardrail never holds your funds. Enforcement is in the contracts you deploy.
• Full audit trail — every intent, validation, and on-chain event is logged with tx hash and block number.