LLM API Cost Calculator

A simple tool that calculates how much you'll spend on LLM API calls (OpenAI, Claude, etc.) while coding. Developers overspend on API costs because they don't track usage in real-time. This shows cost per request and helps optimize spending.

LLM API pricing changes frequently and varies enough across providers that developers genuinely struggle to estimate costs before bills arrive — a pain point that has grown sharply as more teams ship AI-native features and burn through tokens at scale. No clear incumbent owns this specific niche, though TokenMetrics and rough OpenAI playground estimates serve as loose substitutes. The $500–2k/mo revenue band is realistic only if monetized through a paid tier or affiliate relationships with API providers, since the core utility is thin enough that most users will expect it free. The biggest risk is commoditization: OpenAI, Anthropic, and aggregators like OpenRouter already surface per-token pricing clearly, and a one-page calculator is trivially easy for a competitor to bundle into a broader tool, leaving standalone versions with no defensible position.