Agents2h ago
LangChain Launches AgentCore Payments Middleware
Deterministic session budgets now power LangChain agents via the new AgentCore Payments middleware. The system signs x402 payments to handle API costs automatically. LangSmith traces every transaction for full auditability. This solves the immediate problem of uncontrolled spending in autonomous agentic workflows. Developers can now cap agent expenditures at the session level.