agent-payment-x402

Autonomous agent payments are automated using per-task and per-session budgets to enforce spending controls. This prevents overspending by validating budgets before delegating to paid actions, eliminating manual cost monitoring.

Non-custodial wallet integration uses ERC-4337 smart accounts to execute autonomous payments without custodial risk. This ensures secure key handling while allowing agents to pay for API calls and services directly.

Spending policies are enforced through policy-driven controls including allowlists, retry on 402, and audit trails. Post-task logging records transactions, while pre-task validation blocks actions exceeding predefined budgets.

MCP tools support payments, signing, and orchestration across API calls, services, and inter-agent settlements. This integration enables agents to autonomously manage transactions and interactions within configured budget limits.

Autonomous payments handle 402 errors through policy-driven retry mechanisms configured in the spending controls. The system validates retry attempts against per-task budgets before re-executing the paid action.

Per-task budgeting limitations involve strict pre-task validation that blocks actions exceeding allocated limits. Users must configure allowlists and policy parameters beforehand, as agents cannot bypass these predefined spending controls.