AI API Spending Guard

Real-time circuit breaker for your AI API bill, so one bug doesn't burn a month's profit

Problem

When indie developers and small teams build AI products, their biggest fear is an agent stuck in a loop or a bug repeatedly calling expensive models at night—by the time they notice, the bill is huge. Cloud provider budget alerts are delayed and coarse, and can't intercept per project, per model, or per agent in real time.

Solution

A lightweight proxy gateway: point API requests to it, then set hourly and daily budget caps and abnormal call-rate thresholds per project/model/user. When triggered, it automatically cuts off calls and sends Slack/email alerts, while keeping request logs for post-mortem.

Users

Indie developers, small AI product founders, vibe coders running multiple agents

MVP

Forwarding proxy compatible with OpenAI/Anthropic APIs; daily budget caps per project with circuit breaker; detection of repeated identical prompts (loop); Slack/email alerts; simple usage dashboard.

Revenue

Subscription based on monitored API calls; free up to 10k calls/month, paid from $19/month; or one-time license per number of projects.

Why now

AI coding lets more people build products quickly, but cost-awareness is low. Model providers don't offer fine-grained circuit breakers, and cloud budget tools don't cover third-party APIs—a gap indie developers can fill fast.