Turn any design into a real steel building. With one API call.

AI can now generate a home design in seconds. The Gage API is what makes it real: instant committed pricing, engineering, and fabrication for cold-formed steel framing, routed through a network of fabricators. Geometry in. Priced, buildable steel out.

Why this exists

Design is becoming a commodity. Anyone can generate a floor plan, a 3D model, or a photorealistic home in seconds. What they cannot generate is the building.

Between every design and every finished structure sits the hard part: takeoffs, engineering, pricing, fabrication, delivery. Today that takes weeks of phone calls and PDFs. Gage compresses it to an API call.

We call it the compile step. Software developers compile code into working programs. Gage compiles designs into steel framing systems: priced in seconds, held at a committed number, fabricated by the nearest shop in our network, and delivered as labeled, ready-to-assemble components.

If you are building anything that creates, displays, or transacts on building designs, Gage is the layer that makes your output buildable.

One endpoint, in practice

POST/v1/quotes
{
  "project": {
    "footprint_sqft": 2400,
    "stories": 2,
    "roof": { "type": "gable", "pitch": "6:12" },
    "gauge_spec": "18ga"
  },
  "delivery": { "zip": "84101" }
}
200response
{
  "status": "priced",
  "subtotal": 36650,
  "fabricator": "Salt Lake City, UT",
  "lead_time_days": 12,
  "valid_until": "14 days"
}

Parametric quotes are live for early access partners. Geometry ingestion (glTF, IFC, layered SVG) is in active development.

What you can build

Six categories of products the Gage API unlocks. Some of our partners are building these right now.

AI design tools that sell real buildings

Give your generated designs a price tag and a path to construction.

  • A "build this" button on every AI-generated home.
  • Live steel pricing that updates as the user edits.
  • Design tools that earn revenue on every originated order.

CAD and BIM integrations

Put committed framing pricing inside the tools professionals already use.

  • One-click steel quotes from Revit, SketchUp, or Archicad models.
  • Parametric studies where cost is a live constraint, with hundreds of variants priced in a loop.
  • Detailing outputs that become orders.

Scan-to-build applications

From phone LiDAR to priced structure.

  • Scan a backyard, place an ADU, get a delivered price.
  • Scan storm or fire damage and quote the steel rebuild instantly.
  • Renovation apps that price the addition as it is drawn.

Plan commerce and configurators

Every plan catalog becomes a storefront.

  • A live "framed in steel" price on every plan page.
  • Builder design centers with a steel option and real numbers.
  • Kit and prefab companies running their entire framing supply chain through one endpoint.

Feasibility, lending, and insurance

Real framing costs, upstream of construction.

  • Land listings that show what could be built and what framing costs.
  • Loan underwriting on committed numbers instead of estimates.
  • Insurers pricing the steel-framed version to price the premium.

AI agents and automation

Built for the way procurement is about to work.

  • An MCP server so AI assistants can submit plans and retrieve quotes conversationally.
  • Agent-driven flows from feasibility to accepted quote.
  • Machine-readable panel and component data ready for automated assembly.

Why steel, why now

Committed pricing.

Every quote returns a number that holds, with a defined reconciliation band backed by real fabrication data. Lumber cannot do this. Neither can a phone call.

A real network.

Quotes route to fabricators by location, capacity, and lead time. Your users get the nearest available shop and one accountable party from quote to delivery.

Engineered output.

Behind every accepted quote: panel engineering and machine-ready fabrication files. The API does not stop at a price. It ends in steel on a truck.

How partners earn

Design tools and platforms that originate orders through the Gage API participate in the transaction. Your product stops being a cost center the moment your users start building what they design. Partner economics are part of early access conversations.

The stack that builds is being written right now.

We are onboarding a small group of early access partners while the network grows. If you are building in any of the categories above, or one we have not thought of, we want to talk.