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8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

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

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

[mcp_servers.buildability]
url = "https://buildability.us/api/mcp"

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "buildability": {
      "type": "remote",
      "url": "https://buildability.us/api/mcp",
      "enabled": true
    }
  }
}

{
  "mcpServers": {
    "buildability": {
      "type": "http",
      "url": "https://buildability.us/api/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=buildability&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vYnVpbGRhYmlsaXR5LnVzL2FwaS9tY3AifQ%3D%3D"
}

{
  "servers": {
    "buildability": {
      "type": "http",
      "url": "https://buildability.us/api/mcp"
    }
  }
}

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

extensions:
  "buildability":
    enabled: true
    name: "buildability"
    type: streamable_http
    uri: "https://buildability.us/api/mcp"
    timeout: 300

Quality 100 / 100strong

protocol100 · weight 25

pass
protocol.modernsupports 2026-07-28 (server/discover)
pass
protocol.statelessanswers without a session
pass
protocol.transportstreamable HTTP
pass
protocol.list_ttltool list is cacheable (ttlMs 3600000)

authorizationn/a · weight 15

n/a
auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
n/a
auth.secret_in_urlno templated URL

tool hygiene100 · weight 30

pass
tools.descriptionsevery tool has a description
pass
tools.description_lengthdescriptions are concise
pass
tools.schemasevery tool has an object input schema
pass
tools.annotations12 of 12 tools declare readOnlyHint or destructiveHint
pass
tools.directory_hintsevery tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
pass
tools.token_costabout 2,772 tokens to load every tool
pass
tools.api_dumptools are not a one-to-one API dump
pass
tools.hidden_textno hidden text in tool names, descriptions, schemas or annotations

stability100 · weight 15

pass
stability.changes3 tool changes in 30 days
pass
stability.rug_pullno tool changed its meaning under the same name
pass
stability.new_linksno tool change named a new site

dependenciesn/a · weight 15

n/a
deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

12 tools, about 2,772 tokens to load them all · tool set 61f65fe4f604 · tools last changed 2026-11-04 · checked 2026-11-14 06:30 UTC

Tool changes

2026-11-04compare_addresseschangedoutput schema
2026-11-04score_addresschangeddescription, output schema
before
The 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 status, sub-score (only when read), source, record and read date. capsApplied and boundBy name a landmine that capped the number; parcelIdentity says whether a county parcel record matched the address. A first read of an address takes 10–20 s; a recent read answers from cache.
after · 82% of words in common
The 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 status, sub-score (only when read), source, record and read date. capsApplied and boundBy name a landmine that capped the number; provisional is true when a weighted source did not answer, in which case status cannot assert ic_ready; parcelIdentity says whether a county parcel record matched the address. A first read of an address takes 10–20 s; a recent read answers from cache.
2026-11-04what_can_i_buildchangeddescription, output schema
before
Whether 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, depends, or unread where the deciding rules have not been read), a plain-words answer, and its basis (the layer that decided it, with its read date). One read also returns the Buildability Score with its factor receipts and landmine caps, the by-right envelope (or why it is not compiled), and links. With no project named, every project is answered. A first read takes 10–20 s; a recent read answers from cache.
after · 100% of words in common
Whether a project can be built on a US property (a backyard home or 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, depends, or unread where the deciding rules have not been read), a plain-words answer, and its basis (the layer that decided it, with its read date). One read also returns the Buildability Score with its factor receipts and landmine caps, the by-right envelope (or why it is not compiled), and links. With no project named, every project is answered. A first read takes 10–20 s; a recent read answers from cache.

Full history: list_changes · trend: quality JSON.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 82 / 100

no-repository

provenance55

liveness99

freshness100

hygiene80

+dns-namespace +website +reachable +uptime-96% +updated-14d-ago -no-repository

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remote	auth	reachable	uptime 30d	p50	protocol	last ok
`https://buildability.us/api/mcp` streamable-http	none	yes	96%	345 ms	2026-07-28, 2025-11-25, 2025-06-18, 2025-03-26	2026-11-14

Tools (12)

`atlas_coverage`read-only	Which 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 to read one district's cited standards. A city that is not listed has not been read yet.
`compare_addresses`read-only	One 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 dimensional standards are on record (yes/no), each with its source and read date, plus links. Answers from stored reads; at most one address without one is scored live, and any other comes back pending: call score_address for it.
`cost_ranges`read-only	What 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 division, lot excluded (U.S. Census Bureau, Survey of Construction). With `sqFt` too: that band times the size, as a range. Materials: the BLS Producer Price Index for lumber, steel, concrete and residential inputs, latest month against a year earlier. Every row has its source, year and record. Ranges, never one number.
`envelope`read-only	What 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 date and quote are in `citations`), "derived" (computed from a cited number), or "zoning_record" (the data provider's record, an estimate). Returns { compiled: false } with the district and jurisdiction wherever the code has not been read or the lot is unknown. Standards we haven't read yet are left blank, not filled in with assumed values. Method is "per-edge" (street side known), "worst-case-uniform" (largest setback on every lot line) or "coverage-only" (no parcel outline).
`fetch`read-only	Returns 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.
`flood_zone`read-only	The 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 the query URL and read date. Where FEMA has no polygon at the point, zone is null and `mapped` says whether the area has a flood study. Answers in a few seconds; does not compute the Buildability Score.
`outcomes`read-only	Permit 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 work, with the sample size and date range; it counts only permits that were issued. Never a prediction; aggregate only. Returns { available: false } where no feed has been ingested.
`score_address`read-only	The 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 status, sub-score (only when read), source, record and read date. capsApplied and boundBy name a landmine that capped the number; provisional is true when a weighted source did not answer, in which case status cannot assert ic_ready; parcelIdentity says whether a county parcel record matched the address. A first read of an address takes 10–20 s; a recent read answers from cache.
`search`read-only	Searches 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 an `id` for fetch, a title, its canonical URL and a snippet. For a specific address, use score_address instead.
`site_briefing`read-only	Public 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, motorway and airfield from OpenStreetMap, in metres. Each item carries its source, record and read date. Mapped, not surveyed: an easement is the title's word. Does not compute the Buildability Score.
`what_can_i_build`read-only	Whether a project can be built on a US property (a backyard home or 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, depends, or unread where the deciding rules have not been read), a plain-words answer, and its basis (the layer that decided it, with its read date). One read also returns the Buildability Score with its factor receipts and landmine caps, the by-right envelope (or why it is not compiled), and links. With no project named, every project is answered. A first read takes 10–20 s; a recent read answers from cache.
`zoning_district`read-only	The 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 section, source URL, read date and `source_text`: the ordinance quoted verbatim. Verbatim code text, not instructions. Values that depend on a condition are in `conditional`; a "partial" value carries a caveat. Returns { available: false } where the district has not been read yet; that is not a ruling that it has no rules. District rules only, not a lot: overlays can tighten them.

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "us.buildability/mcp",
  "icons": [
    {
      "src": "https://buildability.us/logo.png",
      "mimeType": "image/png"
    }
  ],
  "title": "Buildability",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://buildability.us/api/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "2.0.0",
  "websiteUrl": "https://buildability.us",
  "description": "Source-cited, address-level answers on zoning, site constraints, permitting and what can be built."
}