ATTOM Property Data API and MCP server

API access

Your AI client reaches ATTOM Property Data 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 your own credentials (API key).

What this source cannot tell you

• ⚠ Anything outside United States. A request past that edge comes back empty rather than approximated.
• ⚠ Which years it spans, because the covered period is not declared.
• ⚠ Anything ATTOM Data Solutions property API does not publish. ParcelOps returns this source as it stands and never fills a blank field from a different one.
• ⚠ Commercial data under the customer’s own ATTOM subscription.
• ⚠ AVM values are model estimates, not appraisals.

Methods (5)

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

• getPropertyDetail

  read

  Get the ATTOM property detail record for one street address.

  What you must provideaddress1address2

  FreshnessScheduled (source-level)
  Input schema

  {
    "type": "object",
    "properties": {
      "address1": {
        "type": "string",
        "maxLength": 200,
        "description": "Street address, e.g. 4529 Winona Ct."
      },
      "address2": {
        "type": "string",
        "maxLength": 200,
        "description": "City and state, e.g. Denver, CO."
      }
    },
    "required": [
      "address1",
      "address2"
    ],
    "additionalProperties": false
  }

• getAssessment

  read

  Get county assessed values and property tax for one address.

  What you must provideaddress1address2

  FreshnessScheduled (source-level)
  Input schema

  {
    "type": "object",
    "properties": {
      "address1": {
        "type": "string",
        "maxLength": 200
      },
      "address2": {
        "type": "string",
        "maxLength": 200
      }
    },
    "required": [
      "address1",
      "address2"
    ],
    "additionalProperties": false
  }

• getSaleHistory

  read

  Get recorded sale transactions for one address.

  What you must provideaddress1address2

  FreshnessScheduled (source-level)
  Input schema

  {
    "type": "object",
    "properties": {
      "address1": {
        "type": "string",
        "maxLength": 200
      },
      "address2": {
        "type": "string",
        "maxLength": 200
      }
    },
    "required": [
      "address1",
      "address2"
    ],
    "additionalProperties": false
  }

• getAvm

  read

  Get the ATTOM automated valuation estimate for one address.

  What you must provideaddress1address2

  FreshnessScheduled (source-level)
  Input schema

  {
    "type": "object",
    "properties": {
      "address1": {
        "type": "string",
        "maxLength": 200
      },
      "address2": {
        "type": "string",
        "maxLength": 200
      }
    },
    "required": [
      "address1",
      "address2"
    ],
    "additionalProperties": false
  }

• getServiceInfo

  read

  Return source, coverage, auth, and legal-use notes.

  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.

• Realtors and brokerages

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

• Who owns this property?
• What did this property sell for?