ATTOM vs Realie
A side-by-side comparison of ATTOM and Realie, two Real Estate tools, drawn from Ignaite's continuously-verified listings.
Compared from listings verified as of
At a glance
| Attribute | ATTOM | Realie |
|---|---|---|
| Category | Real Estate | Real Estate |
| Pricing (differs) | PAID | FREEMIUM |
| License | Proprietary | Proprietary |
| Deployment | Cloud | Cloud |
| Platforms (differs) | API | API, Web |
| Model support | — | — |
| Vendor (differs) | ATTOM | Realie |
| Capabilities (differs) |
|
|
The honest brief
ATTOM
Pairs one of the largest US public-records property datasets (160M+) with AI-native cloud and MCP delivery, not just a REST API.
- Nationwide US property coverage
- Deeds, mortgage, tax, and boundary data
- MCP server for direct agent queries
- API, bulk, Snowflake/Databricks
- Enterprise, contact-sales pricing
- US-only coverage
- Data vendor, not an end-user app
Realie
Undercuts incumbent property-data APIs that start near $350/mo — a free tier and paid plans from $50/mo, with sub-10ms lookups and bulk S3 delivery.
- Free tier available
- 3,100+ counties across all 50 states
- AVM and comparables included
- MCP access from Claude, Cursor, VS Code
- US-only coverage
- Newer and smaller than legacy data vendors
- Public-record data can lag county updates
When to pick which
Both cover MCP server, Property data API, and Property valuation.
Pick ATTOM if you need ETL / data pipeline.
- ETL / data pipeline (secondary capability)
They also differ on:
- Pricing
- PAID · FREEMIUM
- Platforms
- API · API, Web