TokenWatch
Hey HN! Built this after watching engineering teams repeatedly get surprised by AI API invoices — no visibility into spend until the bill landed. TokenWatch connects to your OpenAI, Anthropic, and Gemini keys and gives you: - Real-time spend dashboard across projects - Budget thresholds with proactive alerts - Anomaly detection for unusual cost spikes - Duplicate call detection (biggest source of wasted spend I've seen) Free tier supports up to 3 AI systems. Built this in ~2 days as a solo project. Happy to answer anything about the build or the problem space.
TokenWatch launched on March 11, 2026 with 3 votes, #3,303 of 23,380 launches that month and more than 50% of that year's launches.
What it does
TokenWatch helps indie developers monitor OpenAI, Anthropic, and Gemini spend in real time, set budget thresholds, detect anomalies, and identify waste from duplicate calls. Connect keys in minutes, get proactive alerts, and stop surprise AI bills before they hit your card.
Track and control your OpenAI, Anthropic, and Gemini API spend in real time. Budget alerts, anomaly detection, and caching insights. Free to start.
Real-time cost monitoring, budget alerts, and caching suggestions for developers building on LLMs. Set up in 5 minutes. Sleep at night. See daily, weekly, and monthly spend trends with real-time provider breakdowns. Receive instant alerts at custom thresholds before your budget gets burned. Track exactly which product features consume tokens and drive spend. Spot unusual spikes in usage with automatic anomaly monitoring. Reveal duplicate calls and high-cost routes to cut waste with smarter caching. Unify OpenAI, Anthropic, and Gemini billing telemetry in one workspace. Securely connect provider API keys and import usage data in minutes. Define daily, weekly, and monthly limits with…from tokenwatch-ten.vercel.app
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