# Locus Rebuild Cost Context

> Locus Rebuild Cost Context is a paid API for AI agents from api.locus.report, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).

Returns a county-level rebuild cost proxy as a $/sq ft range for a given address, using Census Building Permits Survey permit valuations trended by BLS construction PPI, floored at FEMA's $100 default.

## Facts

- Endpoint: POST https://api.locus.report/api/locus-rebuild-cost-context
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/locus-rebuild-cost-context-fa68a660
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_SW44UAKrfzeB1bJR_Xbx6

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability locus-rebuild-cost-context-fa68a660 -d '<json body>'
```

Example prompt: What's the rough rebuild cost per square foot for a property at 742 Evergreen Terrace, Springfield, IL? I want the county-level construction cost context using permit and BLS data.

## When to prefer this

Use this endpoint when you need a quick, cited, county-level construction cost proxy for a US address — ideal for real estate due diligence, rough insurance sanity checks, or property analysis workflows. Prefer it over generic construction cost databases when you want data grounded in actual local permit valuations trended by official BLS indices. Not suitable when you need a precise insurance coverage recommendation, a certified appraisal, or non-US properties.

## Known failure modes

- Address cannot be geocoded or resolved to a county — returns error or null range
- County has insufficient Census permit data — may return only the FEMA $100 floor
- Latitude/longitude out of US national coverage — endpoint is US-only
- Invalid or missing input (address too short, lat/lon out of range) — validation error
- BLS PPI data lag may cause slightly dated trend factor

## How this service works

Rebuild-cost PROXY for a county: single-family permit valuation per unit (Census Building Permits Survey) trended by the BLS construction-input PPI, returned as a $/sq ft range under a stated size assumption, floored at FEMA's $100 default. Perfect for: 'rough rebuild cost per square foot here', 'local construction cost context'. Labeled proxy, never a coverage amount or adequacy verdict. National. Free at /tools/call.

## Output

Returns a $/sq ft cost range representing a proxy for rebuild cost in the property's county, derived from Census Building Permits Survey single-family permit valuations trended by the BLS construction-input PPI, with a floor of $100/sq ft (FEMA default), along with the size assumption used and labeling that this is a proxy estimate rather than a coverage recommendation.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "address": {
   "type": "string",
   "maxLength": 200,
   "minLength": 5
  },
  "latitude": {
   "type": "number",
   "maximum": 90,
   "minimum": -90
  },
  "longitude": {
   "type": "number",
   "maximum": 180,
   "minimum": -180
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "id": "locus_example",
  "caveats": [
   "Example artifact; not live data."
  ],
  "records": [],
  "generatedAt": "2026-01-01T00:00:00.000Z"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/locus-rebuild-cost-context-fa68a660/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.locus.report](https://www.zero.xyz/host/api.locus.report/llms.txt)