HomeSignal

HS US housing market data from government sources: house prices, construction, new home sales, vacancy, shelter inflation and Treasury yields.

HomeSignal reads FHFA, the Census Bureau, BLS and Treasury directly, and keeps one time series store for the nation, regions, divisions, states and metros. A snapshot gives each indicator's latest value and its change from the prior period and from a year ago, and says when a value comes from a broader geography. Two readings, owner value and buyer affordability, use fixed year-over-year rules with thresholds at or above each source's margin of error, and show every input. HomeSignal is informational only, not investment advice.

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What it answers

How fast are house prices rising in this state or metro, and since when?
Are permits, starts and new home sales up or down from a year ago?
How tight is the market: months' supply, rental and homeowner vacancy?
Are house prices rising faster than shelter costs, and where is the 10-year Treasury yield?
What changed since my last sync, including revisions?

What it holds now

HS-HPI House price index values: loading
HS-CEN Construction, sales and vacancy values: loading
HS-CPI CPI shelter values: loading
HS-RT Treasury yield values: loading

Read live from https://api.elysianintelligence.com/housing/status.

Example

curl "https://api.elysianintelligence.com/housing/v1/snapshot?geography=US" \
  -H "Authorization: Bearer $EP_KEY"

{
  "geography": {
    "type": "us",
    "code": "US",
    "name": "United States"
  },
  "indicators": [
    {
      "indicator": "home_price_index",
      "series_id": "fhfa:po-sa-monthly:USA",
      "latest": {
        "date": "2026-07-01",
        "value": 443.52
      },
      "year_ago": {
        "date": "2025-07-01",
        "value": 432.4
      },
      "change_vs_year_ago": 2.572,
      "change_unit": "percent",
      "geography_used": {
        "type": "us",
        "code": "US",
        "name": "United States"
      }
    },
    {
      "indicator": "cpi_shelter",
      "series_id": "bls:CUUR0000SAH1",
      "latest": {
        "date": "2026-09-01",
        "value": 432.092
      },
      "year_ago": {
        "date": "2025-09-01",
        "value": 418.598
      },
      "change_vs_year_ago": 3.224,
      "change_unit": "percent"
    },
    {
      "indicator": "treasury_10y",
      "latest": {
        "date": "2026-10-19",
        "value": 5.15
      },
      "prior": {
        "date": "2026-10-16",
        "value": 5.09
      },
      "change_vs_prior": 0.06,
      "change_unit": "percentage_points"
    }
  ],
  "disclaimer": "Informational only. Not investment, financial, lending, appraisal or real estate advice."
}

Shortened. Field names are the API's own; the values come from the public sources, read on 20 Oct 2026.

Endpoints

Every route is also an MCP tool with the same input and output, at https://api.elysianintelligence.com/housing/mcp.

REST route	MCP tool	What it does
`GET /v1/snapshot?geography=`	`snapshot`	Latest value and changes of each indicator, with the geography used.
`GET /v1/health?geography=`	`market_health`	Owner value and buyer affordability readings by published rules, with the inputs.
`GET /v1/series/{series_id}?start=&end=`	`get_series`	One series' observations, oldest first.
`GET /v1/series?q=&source=&geography=`	`search_series`	Find series by words, source and geography.
`GET /v1/geographies?type=&q=`	`list_geographies`	Nation, regions, divisions, states and metros.
`GET /v1/changes?cursor=&source=`	`series_changes`	New and revised observations since a cursor, in the order they were stored.

Sources, licences and refresh

Source	Licence	Updates
FHFA House Price Index	US government work, public domain (FHFA has no separate terms)	Monthly and quarterly; we check weekly while a release is due
Census new residential construction, new residential sales, housing vacancies	US government work, public domain	Monthly and quarterly; we check daily while a release is due
BLS Consumer Price Index (shelter, owners' equivalent rent)	US government work, public domain; BLS API terms (see the notice)	Monthly; we check daily while a release is due
Treasury daily par yield curve rates	US government work, public domain	Every business day; we read it daily