Homefairly API

A home price API: check whether a US home or rental listing is fairly priced, from your own app or AI assistant.

Send a listing link or a street address. Homefairly sends back an independent price verdict, a fair value range, a suggested offer range and the recent comparable sales behind it.

What you need

A paid Homefairly license key. Buy checks or a plan at homefairly.com/#pricing. Your key arrives by email and works on the website, the browser extension, the app and the API.

Each new property uses one check. Checking the same property again within 60 days is free.
Pro and Agents plans are unlimited.

Where it works

Price verdicts cover US homes, land and long-term rentals. Links from Zillow®, Redfin®, Realtor.com®, Homes.com®, Apartments.com®, Rent.com®, Zumper® and HotPads® are supported, or send a US street address.

Verdicts are not available in the Cayman Islands or the Bahamas yet.

Make a request

POST https://api.homefairly.com/v1/check
Authorization: Bearer YOUR-LICENSE-KEY
Content-Type: application/json

{ "address": "123 Main St, Austin, TX 78701" }

You can send url (a listing link) instead of address. Optional fields: asking_price, asking_rent, sqft, beds, baths, and listing_type (sale or rental, only needed when you type a rental address).

What comes back

{
  "ok": true,
  "address": "123 Main St, Austin, TX 78701",
  "listing_type": "sale",
  "property_type": "home",
  "verdict": "A BIT HIGH",
  "asking_price": 520000,
  "fair_value": 478000,
  "fair_value_range": [470000, 482000],
  "suggested_offer_range": [463500, 492500],
  "difference_pct": 8.8,
  "comps_used": 3,
  "comparable_sales": [
    { "address": "1 Oak St, Austin, TX 78701", "sold_price": 470000,
      "sold_date": "2026-07-29", "beds": 3, "baths": 2,
      "sqft": 1790, "distance_miles": 0.2 }
  ],
  "account": { "unlimited": false, "checks_left": 14 },
  "charged": true,
  "disclaimer": "..."
}

Illustrative example.

Verdicts are GOOD DEAL, FAIRLY PRICED, A BIT HIGH, OVERPRICED, or UNKNOWN when there is not enough reliable data. Rentals return asking_rent, fair_rent and fair_rent_range instead.

When the asking price is missing

If Homefairly cannot find the asking price, you get "error": "more_info_needed" with a needs list. Send the same request again with asking_price (or asking_rent) added. The second request does not use another check.

Errors

Status	error	Meaning
401	`unauthorized`, `license_inactive`	No key, or the key is not active
402	`out_of_credits`	No checks left on this key
422	`address_not_recognized`	Not a full US street address. Send a street number, street name, city and state (or ZIP), or a listing link.
422	`more_info_needed`, `unrecognized_url`, `not_enough_data`	See the message
422	`cayman_no_verdict`, `bahamas_no_verdict`	Verdicts are not available there yet
429	`capacity`	Temporarily busy. Try again later.

Full specification

OpenAPI 3.0: api.homefairly.com/v1/openapi.json

Questions: [email protected]

Homefairly verdicts are independent estimates for informational purposes only. They are not an appraisal and not financial, legal or real estate advice. Homefairly is not affiliated with Zillow®, Redfin®, Realtor.com®, Homes.com®, Apartments.com®, Rent.com®, Zumper® or HotPads®. Verify with a licensed local professional before making an offer.

Get a license key

Buy checks or an unlimited plan. Your key works on the website, the extension, the app and the API.

See pricing →