Datafiniti Property Data vs ATTOM Property API for AI agents
Datafiniti Property Data is a searchable US property database (API, portal and bulk download) that merges listing activity, tax/assessment and transaction data per property. ATTOM Property API is a REST API for US property records: ownership, sales history, valuations (AVM and rental AVM), mortgages, schools, crime and neighborhood data.
The short answer
- Datafiniti Property Data: Bulk property and listing-history records for analysis and modelling, billed per record returned.
- ATTOM Property API: Deep public-record and valuation data on any US property, rather than finding homes currently on the market.
Side by side
| Datafiniti Property Data | ATTOM Property API | |
|---|---|---|
| Searches | Residential, commercial, multi-family and land properties: active listings, historical records, off-market properties, and rental status. | Properties by address, parcel number, ATTOM ID or latitude/longitude; the docs describe last sales, sales history and valuations, not active for-sale or rental listings. |
| Returns | Property records with location, characteristics, tax/assessment data, transaction history, prices, rental status, brokers (agent, phones, emails) and source URLs. | JSON or XML property records with characteristics, ownership, sale history, AVM values and area data. |
| Before the first call | A Datafiniti account (trial or paid plan) and its API token. | A trial sign-up to receive an API key; production plans through ATTOM. |
| Free | Trial: 1,000 property records free for 2 weeks. | 30-day free trial with an API key. |
| Paid | $119 a month for 1,000 property records a month. | Not stated on its pages |
| Acting on a result | Records can include broker and agent names with phone numbers and emails, plus source URLs of the listing pages. | Nothing: no agent, landlord or listing contact fields are described. |
| Limits on keeping or showing results | No reselling or redistributing the data without significant modification, no public display of image URLs, and delete all data when the agreement ends. | Use of data is governed by a separate license agreement that is not published on the site. |
| Coverage | US | US, 160+ million properties. |
| MCP server | No official server listed | ATTOM MCP Server (access arranged through ATTOM): https://www.attomdata.com/solutions/delivery/mcp-server/ |
Where Openpath fits
Openpath has no homes listed yet. Owners and landlords can list a home for rent or sale on Openpath today, free, and agents will find it through the same search as jobs and businesses. Get listed.
Questions people ask
What do I need before I can use Datafiniti Property Data?
A Datafiniti account (trial or paid plan) and its API token.
Is Datafiniti Property Data free?
Trial: 1,000 property records free for 2 weeks.
What do I need before I can use ATTOM Property API?
A trial sign-up to receive an API key; production plans through ATTOM.
Is ATTOM Property API free?
30-day free trial with an API key.
Sources
Every line about another company comes from its own pages. Prices and terms change, so check the source before you rely on one.
Datafiniti Property Data, read on October 15, 2026:
- datafiniti.co/data/property-data: “1K free property records ... for 2 weeks”
- datafiniti.co/data/property-data: “1K property records per month ... $119 per month”
- datafiniti.co/data/property-data: “Datafiniti covers residential, commercial, multi-family, land, and specialty property types throughout the U.S.”
- datafiniti.co/data/property-data: “Explore active listings, historical records, off-market properties, and inventory with no current listing activity.”
- docs.datafiniti.co/docs/property-data-schema: “A list of email addresses associated with the broker.”
- docs.datafiniti.co/docs/property-data-schema: “A list of source URLs associated with this property record.”
- datafiniti.co/terms: “Resell, redistribute or sublicensing Datafiniti Data without any significant modifications”
- datafiniti.co/terms: “you shall immediately delete all Datafiniti Data from your systems”
ATTOM Property API, read on October 15, 2026:
- attomdata.com/solutions/property-data-api: “Sign up for a free 30-day trial to receive an API key and explore ATTOM’s extensive property data”
- attomdata.com/solutions/property-data-api: “Covering 160+ million U.S. properties and 99% of the U.S. population”
- attomdata.com/solutions/property-data-api: “ownership information, lat/long, square footage, loan types, sales history, sales comps, crime, schools and more”
- api.developer.attomdata.com/docs: “return information pertaining to the most recent sale of a property or list of properties”
- attomdata.com/solutions/property-data-api: “The ATTOM MCP Server provides AI-native access to ATTOM Intelligence through the Model Context Protocol (MCP).”
- attomdata.com/solutions/delivery/mcp-server/how-it-works: “Access is governed, permissioned, and centrally managed”
- attomdata.com/terms-of-use: “subject to the terms of a separate license agreement”