Your AI agent hits an infinite loop and racks up $2000 in API charges overnight. This happens weekly to AI developers.
AgentGuard monitors API calls in real-time and automatically kills your process when it hits your budget limit.
How it works:
Add 2 lines to any AI project:
const agentGuard = require('agent-guard');
await agentGuard.init({ limit: 50 }); // $50 budget
// Your existing code runs unchanged
const response = await openai.chat.completions.create({...});
// AgentGuard tracks costs automatically
When your code hits $50 in API costs, AgentGuard stops execution and shows you exactly what happened.Why I built this:
I got tired of seeing "I accidentally spent $500 on OpenAI" posts. Existing tools like tokencost help you measure costs after the fact, but nothing prevents runaway spending in real-time.
AgentGuard is essentially a circuit breaker for AI API costs. It's saved me from several costly bugs during development.
Limitations: Only works with OpenAI and Anthropic APIs currently. Cost calculations are estimates based on documented pricing.
Source: https://github.com/dipampaul17/AgentGuard
Install: npm i agent-guard
Comments URL: https://news.ycombinator.com/item?id=44742710
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Article URL: https://arxiv.org/abs/2506.14272
Comments URL: https://news.ycombinator.c