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Calcis

Calcis

Know what your LLM calls cost before you make them.

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Know exactly what every LLM API call will cost before you make it. Pre-flight cost estimation for OpenAI, Anthropic, and Google models. 25+ models tracked. Prices updated within hours of provider announcements. Works in your browser, CLI, GitHub Action, VS Code, LangChain, LlamaIndex, Vercel AI SDK, and as an MCP server for Claude Desktop and Cursor. No more bill shock. Estimate first, ship with confidence.

Calcis makers

Here are the founders, developers, designers and product people who worked on Calcis

Ryan Chen
Ryan ChenFounder of Calcis. Building dev tools
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