{"uid":"cap_t-hmdDw4KLRNxLU9Juypl","slug":"sponge-6ec21eba","name":"RentCast AVM Value Estimate","description":"Value Estimate","url":"https://rentcast.x402.paysponge.com/avm/value","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"address":{"type":"string","default":"5500 Grand Lake Dr, San Antonio, TX, 78244","description":"The **full address** of the property, in the format `Street, City, State, Zip`. You need to provide either the `address` or the `latitude`/`longitude` parameters"},"daysOld":{"type":"integer","format":"int32","description":"The maximum number of days since comparable listings were last seen on the market, with a minimum of 1"},"bedrooms":{"type":"number","format":"float","default":"","description":"The number of bedrooms in the property. Use `0` to indicate a studio layout"},"latitude":{"type":"number","format":"float","description":"The latitude of the property. The `latitude`/`longitude` can be provided instead of the `address` parameter"},"bathrooms":{"type":"number","format":"float","default":"","description":"The number of bathrooms in the property. Supports fractions to indicate partial bathrooms"},"compCount":{"type":"integer","format":"int32","default":5,"description":"The number of comparable listings to use when calculating the value estimate, between 5 and 25. Defaults to `15` if not provided"},"longitude":{"type":"number","format":"float","description":"The longitude of the property. The `latitude`/`longitude` can be provided instead of the `address` parameter"},"maxRadius":{"type":"number","format":"float","description":"The maximum distance between comparable listings and the subject property, in miles"},"propertyType":{"enum":["Single Family","Condo","Townhouse","Manufactured","Multi-Family","Apartment","Land"],"type":"string","default":"","description":"The type of the property. See [explanation of property types](https://developers.rentcast.io/reference/property-types)"},"squareFootage":{"type":"number","format":"float","default":"","description":"The total living area size of the property, in square feet"},"lookupSubjectAttributes":{"type":"boolean","default":"","description":"When enabled, will attempt to look up subject property attributes to find more relevant comps. Defaults to `true` if not provided. [Learn more](https://developers.rentcast.io/reference/property-valuation#subject-property-attribute-lookup) about this feature"}}},"responseSchema":{"type":"object","properties":{"price":{"type":"integer","default":0,"example":221000},"latitude":{"type":"number","default":0,"example":29.475962},"longitude":{"type":"number","default":0,"example":-98.351442},"comparables":{"type":"array","items":{"type":"object","properties":{"id":{"type":"string","example":"5014-Fern-Lk,-San-Antonio,-TX-78244"},"city":{"type":"string","example":"San 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Antonio","price":242000,"state":"TX","county":"Bexar","status":"Inactive","daysOld":85,"lotSize":4792,"zipCode":"78218","bedrooms":3,"distance":0.8718,"latitude":29.479555,"bathrooms":2,"longitude":-98.365348,"stateFips":"48","yearBuilt":2022,"countyFips":"029","listedDate":"2026-03-04T00:00:00.000Z","correlation":0.9825,"listingType":"Standard","removedDate":"2026-03-26T00:00:00.000Z","addressLine1":"5815 Rolling Gln","addressLine2":null,"daysOnMarket":22,"lastSeenDate":"2026-03-25T11:24:44.882Z","propertyType":"Single Family","squareFootage":1510,"formattedAddress":"5815 Rolling Gln, San Antonio, TX 78218"},{"id":"4715-Juniper-Farm,-San-Antonio,-TX-78244","city":"San Antonio","price":186500,"state":"TX","county":"Bexar","status":"Inactive","daysOld":23,"lotSize":5009,"zipCode":"78244","bedrooms":3,"distance":0.8567,"latitude":29.470703,"bathrooms":2,"longitude":-98.364307,"stateFips":"48","yearBuilt":2000,"countyFips":"029","listedDate":"2026-04-03T00:00:00.000Z","correlation":0.9824,"listingType":"Standard","removedDate":"2026-05-27T00:00:00.000Z","addressLine1":"4715 Juniper Farm","addressLine2":null,"daysOnMarket":54,"lastSeenDate":"2026-05-26T11:58:31.729Z","propertyType":"Single Family","squareFootage":1483,"formattedAddress":"4715 Juniper Farm, San Antonio, TX 78244"},{"id":"4719-Gavlick-Farm,-San-Antonio,-TX-78244","city":"San Antonio","price":199500,"state":"TX","county":"Bexar","status":"Inactive","daysOld":12,"lotSize":5009,"zipCode":"78244","bedrooms":3,"distance":0.8144,"latitude":29.470689,"bathrooms":2,"longitude":-98.363518,"stateFips":"48","yearBuilt":2000,"countyFips":"029","listedDate":"2026-04-17T00:00:00.000Z","correlation":0.9821,"listingType":"Standard","removedDate":"2026-06-07T00:00:00.000Z","addressLine1":"4719 Gavlick Farm","addressLine2":null,"daysOnMarket":51,"lastSeenDate":"2026-06-06T12:12:05.023Z","propertyType":"Single Family","squareFootage":1471,"formattedAddress":"4719 Gavlick Farm, San Antonio, TX 78244"},{"id":"5123-Pine-Lake-Dr,-San-Antonio,-TX-78244","city":"San Antonio","price":202000,"state":"TX","county":"Bexar","status":"Inactive","daysOld":49,"lotSize":6665,"zipCode":"78244","bedrooms":3,"distance":0.3989,"latitude":29.470268,"bathrooms":2,"longitude":-98.350858,"stateFips":"48","yearBuilt":1988,"countyFips":"029","listedDate":"2025-12-09T00:00:00.000Z","correlation":0.9816,"listingType":"Standard","removedDate":"2026-05-01T00:00:00.000Z","addressLine1":"5123 Pine Lake Dr","addressLine2":null,"daysOnMarket":143,"lastSeenDate":"2026-04-30T10:59:16.659Z","propertyType":"Single Family","squareFootage":1626,"formattedAddress":"5123 Pine Lake Dr, San Antonio, TX 78244"},{"id":"6011-Meadow-Sunrise-Dr,-San-Antonio,-TX-78244","city":"San Antonio","price":150000,"state":"TX","county":"Bexar","status":"Inactive","daysOld":80,"lotSize":5184,"zipCode":"78244","bedrooms":3,"distance":0.8715,"latitude":29.468754,"bathrooms":2,"longitude":-98.363284,"stateFips":"48","yearBuilt":1986,"countyFips":"029","listedDate":"2025-08-14T00:00:00.000Z","correlation":0.9816,"listingType":"Standard","removedDate":"2026-03-31T00:00:00.000Z","addressLine1":"6011 Meadow Sunrise Dr","addressLine2":null,"daysOnMarket":229,"lastSeenDate":"2026-03-30T09:42:00.436Z","propertyType":"Single Family","squareFootage":1521,"formattedAddress":"6011 Meadow Sunrise Dr, San Antonio, TX 78244"},{"id":"6235-Windy-Grn,-San-Antonio,-TX-78218","city":"San Antonio","price":284987,"state":"TX","county":"Bexar","status":"Active","daysOld":1,"lotSize":5445,"zipCode":"78218","bedrooms":3,"distance":0.9482,"latitude":29.480595,"bathrooms":2,"longitude":-98.366294,"stateFips":"48","yearBuilt":2021,"countyFips":"029","listedDate":"2026-06-10T00:00:00.000Z","correlation":0.9814,"listingType":"Standard","removedDate":null,"addressLine1":"6235 Windy Grn","addressLine2":null,"daysOnMarket":8,"lastSeenDate":"2026-06-17T11:13:15.860Z","propertyType":"Single Family","squareFootage":1510,"formattedAddress":"6235 Windy Grn, San Antonio, TX 78218"}],"priceRangeLow":176000,"priceRangeHigh":264000,"subjectProperty":{"id":"5500-Grand-Lake-Dr,-San-Antonio,-TX-78244","city":"San Antonio","state":"TX","county":"Bexar","lotSize":8843,"zipCode":"78244","bedrooms":3,"latitude":29.476011,"bathrooms":2,"longitude":-98.351454,"stateFips":"48","yearBuilt":1973,"countyFips":"029","addressLine1":"5500 Grand Lake Dr","addressLine2":null,"lastSaleDate":"2024-11-18T00:00:00.000Z","propertyType":"Single Family","squareFootage":1500,"formattedAddress":"5500 Grand Lake Dr, San Antonio, TX 78244"}}},"exampleRequest":{"address":"5500 Grand Lake Dr, San Antonio, TX, 78244","daysOld":90,"bedrooms":3,"bathrooms":2,"compCount":10,"propertyType":"Single Family","squareFootage":1500},"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_2QiYhmQ1Fv4tAlODJON7W","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns an automated valuation model (AVM) estimate of a property's current market value using RentCast data via Sponge x402 payment proxy","exampleAgentPrompt":"What's the current estimated market value of 123 Main Street, Austin, TX 78701? I need an AVM property value estimate.","exampleUseCases":null,"resultDescription":"Returns a JSON object containing the estimated current market value of the property, likely including a value estimate, high/low confidence range, and supporting comparable data from RentCast's AVM model.","failureModes":["Property not found in RentCast database — returns error or empty result","Invalid or unrecognized address format — validation error","Payment failure via x402 — 402 Payment Required if funds insufficient","Rate limiting or quota exceeded on the proxy gateway","Property in unsupported region or market — limited data availability"],"whenToPreferThis":"Use this endpoint when you need a quick automated valuation estimate for a US residential property and want to pay per-call with no subscription via the x402 micropayment protocol. Prefer this over manual appraisal lookups when building real estate analysis workflows, comparing property values, or enriching property records with current market estimates.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T12:41:58.566Z","isFirstParty":false}