Server
BuildCalc API is a MCP server that exposes construction calculators, codes, costs, products, and benchmarks to AI agents via a hosted integration.
About
BuildCalc API MCP delivers construction industry data—calculators, code references, cost tables, product records, and benchmarks—for agents building proptech, contracting tools, or internal estimators. developers in this niche otherwise stitch spreadsheets and PDF code books manually; this server centralizes callable tools over streamable-http so Claude Code or Cursor can quote quantities, compare products, or sanity-check budgets during validate prototypes and full build integrations. It is a data and computation layer, not a permit filing or CAD replacement, so you still own UX, jurisdiction checks, and engineer sign-off. Use it when your MVP depends on credible numbers pulled on demand rather than static prompt guesses.
- Construction calculators, codes, costs, products, and benchmarks in one API surface
- Remote streamable-http MCP at api.buildcalcapi.dev/mcp
- Registry version 0.4.2 with GitHub source Nasty-Fury/buildcalc-api
- Aimed at AI agents building estimating, procurement, or field workflows
Server by the numbers
- Data as of Jul 7, 2026 (Skillselion catalog sync)
claude mcp add --transport http server https://api.buildcalcapi.dev/mcpAdd your badge
Show developers this MCP server is listed on Skillselion. Paste this into your README.
| Transport | HTTP |
|---|---|
| Auth | None |
What it does
Give construction-focused agents calculators, building codes, cost data, products, and benchmarks via a hosted data API MCP.
Who is it for?
Best when you're shipping proptech, contractor SaaS, or internal estimating copilots and need live construction data in the agent loop.
Skip if: General-purpose apps with no construction domain, or teams that need licensed structural engineering sign-off instead of API-backed estimates.
What you get
Your agent can call structured construction data and calculators while you integrate estimates, specs, or procurement flows into the product.
- Calculator outputs for construction scenarios
- Retrieved code, cost, product, or benchmark records for agent reasoning
- Integration-ready construction data layer for your MVP
By the numbers
- Registry version 0.4.2
- Five advertised capability areas: calculators, codes, costs, products, benchmarks
- Remote MCP URL https://api.buildcalcapi.dev/mcp
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FAQ
Who is BuildCalc API for?
BuildCalc API is for developers and agent developers creating construction, remodeling, or field-service software who need coded calculators and cost or product data on tap.
When should I use BuildCalc API?
Use it while validating a construction prototype with real numbers and during build integrations when your agent or backend must fetch codes, costs, or benchmarks.
How do I add BuildCalc API to my agent?
Register the remote MCP endpoint https://api.buildcalcapi.dev/mcp in your client and review buildcalcapi.dev plus the buildcalc-api GitHub repo for tool coverage.