CostWatch — Real-time API spend alerts before the bill arrives.

The Problem Startups don't see their API costs breaking down by endpoint, service, or customer until the bill hits—often revealing $20k+ surprises too late. Existing monitoring tools charge per-host and don't isolate API cost attribution. Teams are flying blind. What We're Building CostWatch gives you a real-time dashboard showing exactly which endpoints, services, and customers are driving costs. Drop in our lightweight SDK (Python/JS/Go), connect your cloud provider, and get Slack alerts the moment spend spikes 20% above baseline. We do the math so you don't have to. Who It's For Founders and engineering leads at seed-to-Series B startups ($1–10M ARR) with $5k–50k/month cloud spend, especially those using AWS, GCP, or multi-vendor stacks. Key Features (Planned) Real-time cost breakdown by endpoint, service, and customer Lightweight SDK (Python, JavaScript, Go) with zero config overhead Slack alerts when spend spikes 20% above baseline One-click integration with AWS, GCP, and Stripe C