I almost burned ₹4,000 on Claude API overnight — so I built llm-cost-guard
A developer created an open-source tool called llm-cost-guard to prevent unexpected high costs from API calls to large language models. The tool acts as a wrapper for LLM clients, allowing users to set spending limits on a daily, monthly, or per-request basis. It intercepts API calls, tracks token usage and associated costs, and can halt execution or issue alerts when limits are approached or exceeded, preventing costly overruns like the developer's own experience with the Claude API. AI
IMPACT Provides developers with a simple way to control and monitor LLM API spending, preventing unexpected high costs.