Circuit breaker for AI agents — pick budget-guard, loop-killer or worth-it mode and stop runaway token spend, stuck agents or budget overruns in one wrapper. Adapters for LangChain, OpenAI Agents SDK, Claude Agent SDK, Vercel AI SDK and LangGraph Platform
Control LLM agent costs with real-time token, cost, and step tracking. Set budget limits, enforce spend caps, and prevent runaway agents. Works with OpenAI, Anthropic, OpenRouter, Ollama, and any provider.