What is the RealEstateAPI AVM?

The RealEstateAPI AVM (Automated Valuation Model) provides instant property valuations with confidence scores, supporting lender-grade compliance for mortgage, fintech, and real estate platforms.

How accurate are the property valuations?

Our AVM delivers lender-grade accuracy with confidence scoring on every valuation. Each estimate includes a confidence interval so you can make informed decisions based on data quality.

What data sources power the AVM?

The AVM combines multiple authoritative data sources including public records, MLS data, tax assessments, and transaction history to generate accurate property valuations.

Can the AVM be used for mortgage lending decisions?

Yes. Our AVM is designed for lender-grade use cases including HELOCs, refinancing, and portfolio monitoring. It provides the confidence scoring and audit trails required for compliance.

How fast are the valuation responses?

The AVM API returns valuations in sub-1-second response times, enabling real-time decisioning in your applications and workflows.

For teams outgrowing report-based AVMs

Lender-Grade Property Valuations. Developer-Grade API.

Enterprise-quality AVMs with confidence scoring, delivered via a modern, composable API. Built for teams that need speed, scale, and explainability.

Request

curl -X POST "https://api.realestateapi.com/v3/avm" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "address": "123 Main St",
    "city": "Austin",
    "state": "TX",
    "zip": "78701"
  }'

Response — 200 OK

{
  "avm": 459000,
  "avmMin": 339660,
  "avmMax": 578340,
  "confidence": 74,
  "lastUpdateDate": "2024-12-01",
  "fips": "48453"
}

Some moments call for polished forms and documents. Others demand speed, scale, and automation. This is where API-native valuation shines.

Explore each stage →

Pre-Qualification

≈ 5 seconds

What the User Sees

Property Address

123 Main St, Austin, TX 78701

Loan Amount

$350,000

Check eligibility

Est. Value

$459,000

Max Loan

$344,250

Confidence

74 · Good

Instant estimate for pre-qualification.

What Your System Does

const avm = await reapi.avm({
  address: "123 Main St",
  city: "Austin",
  state: "TX",
  zip: "78701"
});

const maxLoan = avm.avm * 0.75;

return {
  avm: avm.avm,
  confidence: avm.confidence,
  maxLoan
};

Property Address

123 Main St, Austin, TX 78701

Loan Amount

$350,000

Check eligibility

Est. Value

$459,000

Max Loan

$344,250

Confidence

74 · Good

Instant estimate for pre-qualification.

Outcome

Instant pre-qual without report generation or PDF parsing.

Purpose-Built for Financial Decisioning

When investments and risk models depend on your valuation, you need more than a number. You need confidence, context, and consistency.

Valuation With Ranges & Confidence

•Primary AVM estimate: best assessment of current market value
•High / low range: explicit bounds for downside and upside risk
•Confidence score (0–100): quantified certainty on every valuation

{
  "avm": 459000,
  "avmMin": 339660,
  "avmMax": 578340,
  "confidence": 74
}

Why it matters: A confidence score of 74 tells you this valuation is usable but may warrant additional validation. A score of 95 enables automated approval. Teams set rules like:

Confidence ≥ 85 → Auto-approve
Confidence < 85 → Human review

Fast & Reliable

•Sub-1-second median response time (~450ms)
•Lightweight JSON responses designed for high-volume workflows
•Monthly model retraining with latest sales data
•lastUpdateDate included in every response

Why it matters: PDF-based AVMs force your systems to do unnecessary work—file generation, storage, parsing. A lightweight JSON API eliminates that overhead, reducing compute load and lowering total infrastructure cost as volume scales.

Geographic Precision

•FIPS codes included for geographic grouping
•Localized models trained by region
•Confidence-based coverage (no forced guesses)

Why it matters: Rural, suburban, and luxury markets behave differently. Your AVM should too.

One Platform. Every Data Point Your Lending Decision Needs.

Our Lender-Grade AVM is exceptional at one thing: fast, reliable valuations with confidence scoring. Everything else your workflow requires lives on the same platform.

Lender-Grade AVM

Property Detail API

Property Comps API (v3)

Parcel Boundaries

Property Search

Saved Search

Skip Trace

Unified auth • Consistent data model • Predictable pricing

Legacy AVM platforms:

✗Force bundled reports
✗Capped usage
✗Fragmented pricing

RealEstateAPI:

✓Use only what you need
✓Scale by volume tier
✓No per-report tolls. No endpoint roulette.

What Teams Build With Our Lender-Grade AVM

Used by digital lenders, fintech platforms, and credit investors managing billions in exposure.

Alternative Asset Manager

A multi-billion dollar residential credit investor developed a streamlined process for underwriting its investment in single family rental (SFR) portfolios.

•Instant filter against buy-box

•Automated LTV calculations

Outcome

18%

improvement in underwriting speed

Investor CRM

A CRM used widely in the REI space built a workflow that allows users to generate formatted property reports. One click refresh allows them to keep values updated.

•Formatted property reports

•One-click value refresh

Outcome

30%

increase in time on page

Lead Gen Platform

A popular lead gen portal leverages our AVM to help its users calculate the maximum allowable offer when preparing bids.

•Maximum allowable offer

•Enriched lead data

Outcome

Enriched leads

Greater pricing power

Performance That Matches the Data Quality

Speed & Reliability

Sub-1-second responses
99.9% uptime SLA
Unlimited concurrency
Global CDN

Developer Experience

REST API + OpenAPI spec
SDKs: Python, JavaScript, PHP
Sandbox environment
Webhooks & Postman collections

Data Freshness

Monthly AVM retraining
Weekly property updates
Daily MLS integration (optional)
Real-time alerts

Nationwide Coverage. Locally Trained Models.

159M+

Residential properties

States + DC

3,000+

Counties

Property Types Covered

Single-familyCondoMulti-family

Differentiators

Localized models trained by region
Confidence-based coverage (no forced guesses)
Transparent limitations

Why Teams Switch From Legacy AVM Platforms

Switching guide

Feature	Legacy AVM Platforms	RealEstateAPI
Delivery	PDF reports ($7–$10 each) OR expensive API calls ($0.30+)	Integrated API with predictable, volume-based access
Response Time	5–30 seconds (PDF generation)	Sub-1-second JSON API (median ~450ms)
Confidence Scoring	Not consistently provided	0–100 confidence score on every valuation
Data Ecosystem	Siloed products	Unified property platform (search, detail, comps, monitoring)
Comps	Separate product	PropertyComps API available
Property Details	Basic or charged separately	200+ fields via Property Detail API
Re-runs / Validation	Each attempt costs money	Unlimited re-runs within tier
Pricing Model	Per-report + per-endpoint tolls	Predictable, volume-based pricing
Developer Experience	Enterprise sales cycle	Self-serve + documentation + sandbox

Delivery

Legacy AVM Platforms

PDF reports ($7–$10 each) OR expensive API calls ($0.30+)

RealEstateAPI

Integrated API with predictable, volume-based access

Response Time

Legacy AVM Platforms

5–30 seconds (PDF generation)

RealEstateAPI

Sub-1-second JSON API (median ~450ms)

Confidence Scoring

Legacy AVM Platforms

Not consistently provided

RealEstateAPI

0–100 confidence score on every valuation

Data Ecosystem

Legacy AVM Platforms

Siloed products

RealEstateAPI

Unified property platform (search, detail, comps, monitoring)

Comps

Legacy AVM Platforms

Separate product

RealEstateAPI

PropertyComps API available

Property Details

Legacy AVM Platforms

Basic or charged separately

RealEstateAPI

200+ fields via Property Detail API

Re-runs / Validation

Legacy AVM Platforms

Each attempt costs money

RealEstateAPI

Unlimited re-runs within tier

Pricing Model

Legacy AVM Platforms

Per-report + per-endpoint tolls

RealEstateAPI

Predictable, volume-based pricing

Developer Experience

Legacy AVM Platforms

Enterprise sales cycle

RealEstateAPI

Self-serve + documentation + sandbox

Comparisons reflect common patterns in legacy AVM platforms. Evaluate based on your specific contract and workflow.

Evaluate Your AVM Stack

See how RealEstateAPI compares for your specific lending workflow.