Summary
Gives Claude 81 construction calculators and live federal cost data traced to building codes (IRC, IBC, NEC, IECC, IPC) and manufacturer specs. Query concrete yardage with ACI 318 coefficients, pull BLS wage data for carpenters by county, or look up product specs from the 40,000+ item catalog. Every response cites its source. The streamable HTTP transport at api.buildcalcapi.dev/mcp works in Claude Desktop or Cursor with OAuth 2.1. Useful when you're building estimators, spec assistants, or anything that needs grounded construction numbers instead of LLM guesses. Free tier gives you 1,000 calls monthly to test before committing.
Fastest browser for AI agents to run web automation tasks, always free.
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belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →
Free an open-source skills that make AI coding agents easier to understand, verify, and control.
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Connect your Claude agent to live crypto prices and trading routes via 1inch
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Notes, actions and memory. Without a meeting bot. First month 100% off.
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Featured
Fastest browser for AI agents to run web automation tasks, always free.
Download Free life-time →belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →Free an open-source skills that make AI coding agents easier to understand, verify, and control.
Download for free →Connect your Claude agent to live crypto prices and trading routes via 1inch
Get the MCP →Notes, actions and memory. Without a meeting bot. First month 100% off.
Download for free →
