US Census Address & Geography API and MCP server

API access

Your AI client reaches US Census Address & Geography 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.

What this source cannot tell you

• ⚠ Anything outside United States and Puerto Rico. A request past that edge comes back empty rather than approximated.
• ⚠ Which years it spans, because the covered period is not declared.
• ⚠ Anything US Census Bureau Geocoding Services does not publish. ParcelOps returns this source as it stands and never fills a blank field from a different one.
• ⚠ A matched address or Census geography is not a parcel, title, boundary, or ownership record.

Methods (5)

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

• geocodeAddress

  read

  Match one US address and return its coordinate and Census match.

  What you must provideaddress

  FreshnessScheduled (source-level)
  Input schema

  {
    "type": "object",
    "properties": {
      "address": {
        "type": "string",
        "minLength": 3,
        "maxLength": 300
      }
    },
    "required": [
      "address"
    ],
    "additionalProperties": false
  }

• geocodeAddressComponents

  read

  Match structured US address fields.

  What you must providestreet

  FreshnessScheduled (source-level)
  Input schema

  {
    "type": "object",
    "properties": {
      "street": {
        "type": "string",
        "minLength": 1,
        "maxLength": 200
      },
      "city": {
        "type": "string",
        "maxLength": 120
      },
      "state": {
        "type": "string",
        "maxLength": 40
      },
      "zip": {
        "type": "string",
        "pattern": "^\\d{5}(?:-\\d{4})?$"
      }
    },
    "required": [
      "street"
    ],
    "additionalProperties": false
  }

• reverseGeocode

  read

  Resolve a US coordinate to Census geographies and FIPS codes. No address.

  What you must providelatitudelongitude

  FreshnessScheduled (source-level)
  Input schema

  {
    "type": "object",
    "properties": {
      "latitude": {
        "type": "number",
        "minimum": -90,
        "maximum": 90
      },
      "longitude": {
        "type": "number",
        "minimum": -180,
        "maximum": 180
      }
    },
    "required": [
      "latitude",
      "longitude"
    ],
    "additionalProperties": false
  }

• getGeography

  read

  Return Census geography layers and FIPS codes for a US coordinate.

  What you must providelatitudelongitude

  FreshnessScheduled (source-level)
  Input schema

  {
    "type": "object",
    "properties": {
      "latitude": {
        "type": "number",
        "minimum": -90,
        "maximum": 90
      },
      "longitude": {
        "type": "number",
        "minimum": -180,
        "maximum": 180
      }
    },
    "required": [
      "latitude",
      "longitude"
    ],
    "additionalProperties": false
  }

  Accepts latitude and longitude from a geocode result, never address text.

• getServiceInfo

  read

  Return source, coverage, and legal-use notes.

  FreshnessScheduled (source-level)
  Input schema

  {
    "type": "object",
    "properties": {},
    "required": [],
    "additionalProperties": false
  }

Where this source is used

• Housing program eligibility checks

  Check tax credit designations, rural program maps, and existing affordable inventory for an address from your own code.

• 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.

• What census tract is this address in?