Show HN: Free API cost calculators – know your bill before it arrives

Category: devtools

Tags: llm, cost-calculator, api-pricing

Score: 3.3/10 (Innovation: 3, Technical: 3, Documentation: 4, Utility: 4)

A free web-based tool that estimates monthly LLM API costs based on token usage and published pricing for models like GPT-5.5 and Gemini 3.5 Flash. It provides straightforward cost breakdowns for developers to budget before billing, though it lacks advanced features or volume discount calculations.

Target audience: backend devs, data engineers

Repository: https://apicalculators.com/

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