Buildability

Connect it to your AI

Claude Code

claude mcp add --transport http mcp https://buildability.us/api/mcp

Claude, ChatGPT, Cursor and other apps

Add it as a custom connector with this URL (Streamable HTTP):

https://buildability.us/api/mcp

Cursor, VS Code and other apps (mcp.json)

{
  "mcpServers": {
    "mcp": {
      "url": "https://buildability.us/api/mcp"
    }
  }
}

Tools it offers

12 tools, as the server itself reported during our check on Oct 31, 2026.

• what_can_i_buildWhether a project can be built on a US property — a backyard home (ADU), an addition, a garage or shed, a fence, a new home, or a lot split — from what the record says about its district: status (yes, yes with limits, no
• score_addressThe Buildability Score for any US street address, from live federal data (FEMA flood, USGS seismic, USDA soil, EPA radon, USFS wildfire, OSM utilities): score, band, status and every factor the score reads, each with its
• envelopeWhat a lot can hold by right, from the letter of its zoning code applied to the real parcel outline: units, buildable floor area, height, floors, and setbacks. `sources` labels each number: "code" (its section, URL, read
• outcomesPermit outcomes on record for a zoning district (counts by outcome: built, permitted, denied, stalled, withdrawn) from the jurisdiction's open permit data. `time_to_issue` gives days from application to issue per kind of
• flood_zoneThe FEMA National Flood Hazard Layer zone at a US street address, read at the address point: zone, whether it is a Special Flood Hazard Area, zone subtype, floodway and base flood elevation where FEMA returns them, with
• zoning_districtThe dimensional standards the Buildability Zoning Atlas has read for one zoning district (height, stories, dwelling units, lot size, width, depth and frontage, setbacks, floor-to-area ratio, coverage), each with its code
• atlas_coverageWhich cities and zoning districts the Buildability Zoning Atlas has read and publishes, with each city's hub page, its districts and the newest read date. Pass `state` (two-letter code) to narrow it. Use zoning_district
• site_briefingPublic records around a US street address: U.S. Drought Monitor status at the point; with a key, National Register of Historic Places listings on or within 150 m, and the nearest mapped power line, pipeline, rail line, m
• cost_rangesWhat new construction costs, from U.S. government series only. With `state`: the middle half (25th to 75th percentile) of contract price per square foot for new contractor-built single-family houses in that Census divisi
• searchSearches Buildability's public pages: Zoning Atlas district pages (cited dimensional standards), city zoning source packs, the canonical product and methodology pages, and articles. Returns up to ten results, each with a
• fetchReturns one page found by search, by its `id`, as text with its canonical URL and `read_date`: the date on its record (when the code or sources were read, or the page last changed). Cite the URL.
• compare_addressesOne row per US street address, in the order given (never sorted by Score): Buildability Score, band, the landmine caps that bound it, FEMA flood zone at the address point, zoning district, and whether the district's dime

Questions