# PropertyAPI.co — Full Content Reference

> Real estate data API providing access to 158M+ US property records with 200+ attributes per property.

This document contains comprehensive content from all public pages on PropertyAPI.co for AI agents and LLM-based tools.

---

## Product Overview

PropertyAPI.co provides comprehensive real estate data for 158M+ properties across the United States through simple RESTful JSON endpoints. The API delivers property details, ownership information, valuations, sales history, and much more.

### Key Statistics
- 158M+ properties indexed across all 50 US states
- 200+ data attributes per property
- ~10ms average API response time
- 99.9% API uptime

### Data Attributes Include
- Property characteristics (address, type, bedrooms, bathrooms, living area, lot size, year built)
- Owner information (name, mailing address)
- Valuations (AVM estimates, rent estimates)
- Tax and assessment data
- Sale history and transaction records
- Structural details (construction type, roof, foundation)
- Geographic data (latitude, longitude, FIPS code, county)

### Target Audiences
- Real estate wholesalers
- Property investors
- PropTech developers and startups
- Insurance companies and underwriters
- Mortgage companies
- Title companies
- Data and analytics teams
- Appraisers

---

## API Documentation

### Base URL
https://propertyapi.co

### Authentication
All API requests require an API key passed in the `X-Api-Key` header.

```
curl -X GET \
  "https://propertyapi.co/api/v1/parcels/search-by-address?address=123%20Main%20St%2C%20Austin%2C%20TX%2078701" \
  -H "X-Api-Key: your_api_key_here"
```

### Getting Started
1. Create an account at https://propertyapi.co/signup (no invitation required)
2. Complete required verification and submit your use case for account approval and provider eligibility review
3. Review your access status and generate an API key for approved data access; signup does not automatically approve provider access

### Primary Endpoints

#### GET /api/v1/parcels/search-by-address (Recommended)
The easiest way to look up a single property. Pass either a plain street address (e.g. "123 Main St, Austin, TX 78701") or a latitude and longitude. PropertyAPI handles geocoding and all internal identifier resolution automatically. No FIPS code required. Costs 1 credit.

Parameters:
- `address` (string) — Full street address (alternative to lat/lng)
- `latitude` (number) — Latitude coordinate (alternative to address)
- `longitude` (number) — Longitude coordinate (alternative to address)
- `output_fields` (string) — Comma-separated list of specific fields to return

#### GET /api/v1/parcels/search (Free)
A free search returning limited fields including the internal UUID and FIPS identifiers. Useful for validating an address or finding a property's identifiers before calling a paid endpoint. Latitude + longitude searches work without other parameters. Address text searches also require the county FIPS code.

#### GET /api/v1/parcels/get (1 credit)
Retrieve the full property record when you already have a FIPS code plus either an APN, a UUID (from a prior free search), or lat/lng. For power users who have their own property identifiers.

#### GET /api/v1/parcels/bulk/template (Free)
Download a ready-to-use CSV template for bulk lookups. Columns: address, city, state, zip (fips and apn are optional).

#### POST /api/v1/parcels/bulk/preview (Free)
Upload addresses and get a parcel count and credit estimate before committing. No FIPS codes required — just provide address, city, and state. Maximum 1,000 rows per request (contact support@propertyapi.co to raise the cap).

#### POST /api/v1/parcels/bulk/search (Credits vary)
Execute bulk data lookup. Same input as /bulk/preview. Run preview first to confirm count and cost, then call this to receive a download URL for your CSV export.

### Example API Response
```json
{
  "id": "123-Main-St,-Austin,-TX-78701",
  "formattedAddress": "123 Main St, Austin, TX 78701",
  "latitude": 30.267153,
  "longitude": -97.743057,
  "propertyType": "Single Family",
  "bedrooms": 3,
  "bathrooms": 2,
  "livingArea": 1878,
  "lotSize": 8850,
  "yearBuilt": 1975,
  "ownerName": "Jane Doe",
  "lastSaleDate": "2023-07-15",
  "lastSalePrice": 320000
}
```

### Error Handling
The API returns standard HTTP status codes:
- 200: Success
- 400: Bad request (invalid parameters)
- 401: Unauthorized (missing or invalid API key)
- 404: Property not found
- 429: Rate limit exceeded
- 500: Internal server error

---

## Pricing

### Free Tier
Eligible free accounts receive 100 free credits once after required verification and approval, then up to 25 monthly with a 100-free-credit cap. Paid accounts are excluded. No credit card required; provider eligibility checks still apply.

### Pay As You Go (PAYG)
$0.25 per API call. No monthly commitment. Ideal for low volume or irregular usage.

Includes:
- Property attributes (address, structure, owner)
- AVM and rent estimates
- Current tax and assessment values
- Latest sale information

### Monthly Subscriptions
All subscription plans include complete data packages.

| Plan | Monthly Price | Included Calls | Effective Rate | Overage Rate |
|------|-------------|----------------|----------------|--------------|
| Starter | $499 | 5,000 | $0.10/call | $0.12/call |
| Professional | $1,999 | 25,000 | $0.08/call | $0.10/call |
| Business | $4,999 | 100,000 | $0.05/call | $0.06/call |
| Enterprise | $14,999 | 1,000,000 | $0.015/call | $0.02/call |

### Credit Usage
- Single property lookup: 1 credit
- Bulk search: 1 credit per found property (not charged for properties not found)

---

## Use Cases

### Wholesalers
PropertyAPI helps wholesalers find motivated sellers and build targeted marketing lists.
- Bulk search properties by area to find absentee owners and distressed properties
- Access owner mailing addresses for direct mail campaigns
- Export property lists to CSV for mail house integration
- Filter by equity position, property type, and ownership duration

### Real Estate Investors
Investors use PropertyAPI for data-driven property analysis and portfolio management.
- Access AVM (Automated Valuation Model) and rent estimates for deal analysis
- Review sale history and comparable sales data
- Pull tax assessments and property characteristics
- Analyze entire portfolios with bulk lookups
- Research neighborhoods and market trends

### PropTech Developers
PropTech companies integrate PropertyAPI into their applications for property data.
- RESTful JSON API integrates with any modern tech stack
- Simple onboarding with no enterprise contracts or sales calls
- Pay-as-you-go pricing scales with your application
- Comprehensive documentation with code examples
- 200+ attributes for building rich property experiences

### Insurance Companies
Insurance providers use PropertyAPI for risk assessment and underwriting.
- Access property characteristics (construction type, roof material, year built)
- Verify ownership information for policy applications
- Pull structural details for risk evaluation
- Bulk process properties for portfolio risk assessment
- Get property valuations for coverage determination

---

## Competitor Comparisons

### PropertyAPI vs ATTOM
| Feature | PropertyAPI | ATTOM |
|---------|-------------|-------|
| Pricing | $0.25/call PAYG, $499-$14,999/mo subscriptions | ~$500+/mo, $0.10/report, enterprise pricing |
| Self-Service | Open signup; verification, approval and eligibility required | No, requires sales call |
| Free Trial | 100 free credits once after verification and approval | Limited trial available |
| API Format | JSON/REST | JSON/REST |
| Coverage | 158M+ properties | 158M+ properties |
| Bulk Search | Yes, CSV upload | Yes |
| Documentation | Public, self-serve | Requires API key |

PropertyAPI advantages over ATTOM:
- Transparent pricing with no hidden fees or required sales calls
- Open signup — verification, approval and provider eligibility determine access
- Developer-first design with clear documentation

### PropertyAPI vs CoreLogic
| Feature | PropertyAPI | CoreLogic |
|---------|-------------|-----------|
| Pricing | $0.25/call PAYG, $499-$14,999/mo | ~$12,000+/year, per-endpoint pricing |
| Self-Service | Open signup; verification, approval and eligibility required | No, enterprise sales required |
| Minimum Commitment | None (PAYG available) | Annual contract |
| API Format | JSON/REST | JSON/REST, XML |
| Coverage | 158M+ properties | Largest dataset |
| Bulk Search | Yes, CSV upload | Limited API access |
| Setup Time | Depends on verification, approval and provider eligibility | Weeks to months |

PropertyAPI advantages over CoreLogic:
- No annual contracts or minimum commitments
- Self-service onboarding without procurement process
- Transparent, predictable pricing

---

## Blog Articles

### Best Property Data APIs in 2025: Complete Comparison Guide
Published: January 20, 2025
A comprehensive comparison of top property data APIs including ATTOM, CoreLogic, PropertyAPI, BatchData, and RentCast. Covers pricing, features, data coverage, and best fit for different use cases.

### ATTOM vs PropertyAPI: Pricing & Features Comparison
Published: January 15, 2025
A detailed breakdown comparing ATTOM and PropertyAPI. Covers pricing models, API features, ease of integration, self-service capabilities, and which solution fits different project types.

### How to Get Property Owner Data in Bulk: Complete Guide
Published: January 10, 2025
Step-by-step guide for retrieving property owner information at scale. Covers bulk search workflows, CSV upload process, data export, and best practices for wholesalers, marketers, and real estate investors.

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## About PropertyAPI.co

### Mission
PropertyAPI.co believes that access to accurate real estate data should be simple, affordable, and transparent. The platform was built to democratize property information, enabling developers and businesses of all sizes to build innovative applications without the complexity and cost barriers of traditional data providers.

### Story
Founded by developers who experienced firsthand the challenges of working with real estate data. Existing providers offered outdated interfaces, confusing pricing models, and limited support for modern development workflows. PropertyAPI was built to provide an API that developers would actually enjoy using.

Today PropertyAPI powers applications used by investors, insurance companies, realtors, data analysts, and enterprises across North America.

### Values
- Accuracy First: Data sourced from authoritative public records with continuous validation
- Developer-First: Clear documentation, transparent pricing, and excellent support
- Transparency: No hidden fees, no surprise charges, no complex contracts
- Customer Success: Committed to helping developers build amazing real estate applications

### Team
PropertyAPI.co is a remote team of engineers, data scientists, and real estate experts passionate about creating tools that empower developers. Based across the United States.

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## Contact

- Email: hello@propertyapi.co
- Website: https://propertyapi.co
- Documentation: https://propertyapi.co/documentation
- API Reference: https://propertyapi.co/docs
- Status: https://propertyapi.co/status
- Sign up for free credits: https://propertyapi.co/signup