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FHFA State House Price Index API and MCP server

No authfhfa-hpi

Official quarterly home price trends for one state or one metro area, plus a side-by-side comparison of up to six cities and county conforming loan limits.

FHFA State House Price Index is published by FHFA House Price Index® and covers 50 US states and the District of Columbia as published by FHFA and About 409 metro areas and metropolitan divisions (CBSAs) as published by FHFA.

It refreshes on a schedule the publisher sets.

Last verified . That is when these facts were last rebuilt from the ParcelOps source registry, not when FHFA House Price Index® last refreshed the data itself.

API access

Your AI client reaches FHFA State House Price Index through one ParcelOps MCP endpoint, so there is no separate key to hold for it and no per-source client to write. Reaching it takes no credentials of your own.

Where it came from

Freshness and coverage

FreshnessScheduled · Follows FHFA quarterly HPI file updates.
Places covered50 US states and the District of Columbia as published by FHFA, About 409 metro areas and metropolitan divisions (CBSAs) as published by FHFA
Time coveredNot declared
CredentialsNo credentials required

What this source cannot tell you

  • Anything outside 50 US states and the District of Columbia as published by FHFA and About 409 metro areas and metropolitan divisions (CBSAs) as published by FHFA. A request past that edge comes back empty rather than approximated.
  • Which years it spans, because the covered period is not declared.
  • Anything FHFA House Price Index® does not publish. ParcelOps returns this source as it stands and never fills a blank field from a different one.
  • The index measures relative average single-family price change, not dollar prices or parcel values.
  • The all-transactions state series uses sales-price and appraisal data and is not seasonally adjusted.
  • State indexes are normalized to 100 in 1980 Q1 and matter relative to other periods.
  • Metro indexes are normalized to 100 in 1995 Q1, so two metros at the same index level have risen the same amount since 1995 Q1, not to the same price.
  • The metro standard error published alongside each index describes the precision of that estimate; it is not an annual percent change.
  • Conforming loan limits are financing-program thresholds, not property values, loan approvals, or a statement that a transaction is eligible.

Methods (5)

A method is one call your agent can make against this source.

  • getStateHousePriceIndex

    read

    Get recent quarterly FHFA all-transactions HPI values for one state or DC.

    What you must providestateAlpha
    Records returnedstate-house-price-index-series
    How to get more resultsnone
    FreshnessScheduled (source-level)
    Input schema
    {
      "type": "object",
      "properties": {
        "stateAlpha": {
          "type": "string",
          "pattern": "^[A-Za-z]{2}$"
        },
        "startYear": {
          "type": "integer",
          "minimum": 1975,
          "maximum": 2100
        },
        "endYear": {
          "type": "integer",
          "minimum": 1975,
          "maximum": 2100
        },
        "limit": {
          "type": "integer",
          "minimum": 1,
          "maximum": 220
        }
      },
      "required": [
        "stateAlpha"
      ],
      "additionalProperties": false
    }
    • Relative state single-family market index only; not an appraisal, AVM, rent, comparable sale, or parcel value.
  • getMetroHousePriceIndex

    read

    Get recent quarterly home price index values for one metro area, by name or CBSA code.

    Records returnedmetro-house-price-index-series
    How to get more resultsnone
    FreshnessScheduled (source-level)
    Input schema
    {
      "type": "object",
      "properties": {
        "metro": {
          "type": "string",
          "minLength": 2,
          "maxLength": 120,
          "description": "Metro area as people say it: \"houston\", \"dallas\", \"waco tx\". A name shared by several metros (\"springfield\") returns the candidates instead of guessing."
        },
        "cbsaCode": {
          "type": "string",
          "pattern": "^\\d{5}$"
        },
        "startYear": {
          "type": "integer",
          "minimum": 1975,
          "maximum": 2100
        },
        "endYear": {
          "type": "integer",
          "minimum": 1975,
          "maximum": 2100
        },
        "limit": {
          "type": "integer",
          "minimum": 1,
          "maximum": 220
        }
      },
      "required": [],
      "additionalProperties": false
    }
    • Relative metro single-family market index only; not an appraisal, AVM, rent, comparable sale, or parcel value.
    • Not seasonally adjusted and set to 100 in 1995 Q1, so index levels compare growth since 1995 Q1, not price levels.
    • The published standard error describes the precision of the index estimate; it is not an annual percent change.
  • compareMetroHousePriceIndexes

    read

    Compare quarterly home price trends across 2 to 6 metro areas in one call.

    What you must providemetros
    Records returnedmetro-house-price-index-series
    How to get more resultsnone
    FreshnessScheduled (source-level)
    Input schema
    {
      "type": "object",
      "properties": {
        "metros": {
          "type": "array",
          "minItems": 2,
          "maxItems": 6,
          "items": {
            "type": "string",
            "minLength": 2,
            "maxLength": 120
          },
          "description": "Metro names or five-digit CBSA codes, for example [\"houston\",\"dallas\"]."
        },
        "startYear": {
          "type": "integer",
          "minimum": 1975,
          "maximum": 2100
        },
        "endYear": {
          "type": "integer",
          "minimum": 1975,
          "maximum": 2100
        },
        "limit": {
          "type": "integer",
          "minimum": 1,
          "maximum": 220
        }
      },
      "required": [
        "metros"
      ],
      "additionalProperties": false
    }
    • Metro indexes share a 1995 Q1 = 100 base, so a higher index means more growth since 1995 Q1, not a higher home price.
    • Compare the newest quarter the metros share; a newer quarter for one metro alone is not a comparison.
  • getCountyConformingLoanLimits

    read

    Get the official pinned 2026 one- through four-unit conforming loan limits for one county FIPS.

    What you must providecountyFips
    Records returnedcounty-conforming-loan-limit
    How to get more resultsnone
    UnitsoneUnitLimit: USD · twoUnitLimit: USD · threeUnitLimit: USD · fourUnitLimit: USD
    FreshnessScheduled (source-level)
    Input schema
    {
      "type": "object",
      "properties": {
        "countyFips": {
          "type": "string",
          "pattern": "^\\d{5}$"
        },
        "year": {
          "type": "integer",
          "enum": [
            2026
          ]
        }
      },
      "required": [
        "countyFips"
      ],
      "additionalProperties": false
    }
    • Limits are program thresholds, not an appraisal, approval, offer, or property-level lending decision.
  • getServiceInfo

    read

    Return the exact state and metro files, series definitions, normalization, citation, and limits.

    FreshnessScheduled (source-level)
    Input schema
    {
      "type": "object",
      "properties": {},
      "required": [],
      "additionalProperties": false
    }

Where this source is used

  • Land research

    Parcel records, ground conditions, and what reaches the property line, for raw and rural land.

  • Data center siting

    Power, water, transport, airspace, and hazard screening for a site before anyone signs anything.

  • Commercial real estate

    Parcel and assessment records, building programs, and the entity on the other side of the deal.

  • Residential real estate

    The parcel record, the housing programs that touch an address, and the conditions a buyer asks about.

  • Real estate law

    Federal rule text, rulemaking dockets, party records, and the property facts a filing has to state.

  • Realtors and brokerages

    The facts behind a listing, the programs a buyer may qualify for, and your own files in the same place.