APICalculators

A free suite of browser-based calculators that estimate infrastructure costs for LLM tokens, vector databases, cloud VPS, serverless functions, API gateways, image generation, speech services, AI agents, AI coding tools, payment processors, and auth providers. It targets developers, ops, and data teams in startups and mid-market companies who need quick cost comparisons without signup. Pricing is reviewed monthly directly from provider docs, ensuring accuracy, and all calculations run locally in the browser for privacy.

Key features

• LLM API cost comparison
• Embedding API cost estimation
• Vector database cost modeling
• Cloud VPS pricing comparison
• Serverless function cost estimation
• API gateway pricing model
• Image generation cost per image
• Speech STT/TTS cost per minute
• AI agent cost modeling
• AI coding tool per-seat comparison
• Payment processor fee calculation
• Auth provider per-MAU pricing