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RentCast Property Records via Sponge
x402
RentCast Property Records via Sponge is a paid API for AI agents from rentcast.x402.paysponge.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13, last successful call 2026-05-02).
Retrieves property records data for real estate properties via the RentCast API through the Sponge x402 payment proxy
Price / call$0.01
Success100%
StatusUnknown
How this service works
Property Records
Output
Returns a JSON object containing property record details such as owner information, building characteristics, lot size, year built, assessed value, and other property metadata sourced from RentCast's database.
Example use cases
Example prompt
“Can you pull up the property records for 123 Main Street, Austin, TX 78701 — I want to know the owner, building details, and any assessment info on file?”
Technical details
Endpoint
GEThttps://rentcast.x402.paysponge.com/propertiesWhen to prefer
Use this endpoint when you need structured property record data (ownership, building specs, assessments) for a specific property address. Prefer this over rental listing or sale listing endpoints when historical property facts rather than current market listings are needed. Best for due diligence, property research, and enriching real estate datasets.
Side effects
- Property not found in RentCast database — returns empty or null result
- Missing or invalid address parameters — returns error response
- Payment failure via x402 protocol — request not processed
- Rate limiting or quota exceeded — request rejected
- Property address ambiguity causing incorrect record match
Input
{
"input": {
"type": "http",
"method": "GET",
"queryParams": {}
},
"output": {
"type": "json"
}
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| city | string | The name of the city, used to search for properties in a specific city. This parameter is case-sensitive |
| limit | integer | The maximum number of property records to return, between 1 and 500. Defaults to `50` if not provided. [Learn more](https://developers.rentcast.io/reference/pagination) about pagination |
| state | string | The 2-character state abbreviation, used to search for properties in a specific state. This parameter is case-sensitive |
| offset | integer | The index of the first property record to return, used to paginate through large lists of results. Defaults to `0` if not provided. [Learn more](https://developers.rentcast.io/reference/pagination) about pagination |
| radius | number | The radius of the search area in miles, with a maximum of 100. Use in combination with the `latitude`/`longitude` or `address` parameters to search for properties in a circular area |
| address | string | The **full address** of the property, in the format `Street, City, State, Zip`. Used to retrieve data for a specific property, or together with the `radius` parameter to search for properties in a circular area |
| lotSize | string | The total lot size in square feet, used to search for properties matching this criteria. Supports [numeric ranges](https://developers.rentcast.io/reference/search-queries#using-numeric-range-parameters) and [multiple values](https://developers.rentcast.io/reference/search-queries#using-multiple-value-parameters) |
| zipCode | string | The 5-digit zip code, used to search for properties in a specific zip code |
| bedrooms | string | The number of bedrooms, used to search for properties matching this criteria. Use `0` to indicate a studio layout. Supports [numeric ranges](https://developers.rentcast.io/reference/search-queries#using-numeric-range-parameters) and [multiple values](https://developers.rentcast.io/reference/search-queries#using-multiple-value-parameters) |
| latitude | number | The latitude of the search area. Use the `latitude`/`longitude` and `radius` parameters to search for properties in a circular area |
| bathrooms | string | The number of bathrooms, used to search for properties matching this criteria. Supports fractions to indicate partial bathrooms, [numeric ranges](https://developers.rentcast.io/reference/search-queries#using-numeric-range-parameters) and [multiple values](https://developers.rentcast.io/reference/search-queries#using-multiple-value-parameters) |
| longitude | number | The longitude of the search area. Use the `latitude`/`longitude` and `radius` parameters to search for properties in a circular area |
| yearBuilt | string | The year of construction, used to search for properties matching this criteria. Supports [numeric ranges](https://developers.rentcast.io/reference/search-queries#using-numeric-range-parameters) and [multiple values](https://developers.rentcast.io/reference/search-queries#using-multiple-value-parameters) |
| propertyType | string | The type of the property, used to search for properties matching this criteria. See [explanation of property types](https://developers.rentcast.io/reference/property-types). Supports [multiple values](https://developers.rentcast.io/reference/search-queries#using-multiple-value-parameters) |
| saleDateRange | string | The number of days since a property was last sold, with a minimum of 1. Used to search for properties that were sold within the specified date range. Supports [numeric ranges](https://developers.rentcast.io/reference/search-queries#using-numeric-range-parameters) |
| squareFootage | string | The total living area size in square feet, used to search for properties matching this criteria. Supports [numeric ranges](https://developers.rentcast.io/reference/search-queries#using-numeric-range-parameters) and [multiple values](https://developers.rentcast.io/reference/search-queries#using-multiple-value-parameters) |
| includeTotalCount | boolean | When enabled, will return the total number of results matching the current query in the `X-Total-Count` response header. Defaults to `false` if not provided |
Output
{
"_truncated": true,
"_originalSize": 71214
}Schema · Response
{
"type": "array",
"items": {
"type": "object",
"properties": {
"id": {
"type": "string",
"example": "5500-Grand-Lake-Dr,-San-Antonio,-TX-78244"
},
"hoa": {
"type": "object",
"properties": {
"fee": {
"type": "integer",
"default": 0,
"example": 175
}
}
},
"city": {
"type": "string",
"example": "San Antonio"
},
"owner": {
"type": "object",
"properties": {
"type": {
"type": "string",
"example": "Individual"
},
"names": {
"type": "array",
"items": {
"type": "string",
"example": "Michael Smith"
}
},
"mailingAddress": {
"type": "object",
"properties": {
"id": {
"type": "string",
"example": "149-Weaver-Blvd,---264,-Weaverville,-NC-28787"
},
"city": {
"type": "string",
"example": "Weaverville"
},
"state": {
"type": "string",
"example": "NC"
},
"zipCode": {
"type": "string",
"example": "28787"
},
"addressLine1": {
"type": "string",
"example": "149 Weaver Blvd"
},
"addressLine2": {
"type": "string",
"example": "# 264"
},
"formattedAddress": {
"type": "string",
"example": "149 Weaver Blvd, # 264, Weaverville, NC 28787"
}
}
}
}
},
"state": {
"type": "string",
"example": "TX"
},
"county": {
"type": "string",
"example": "Bexar"
},
"zoning": {
"type": "string",
"example": "RH"
},
"history": {
"type": "object",
"properties": {
"2004-06-16": {
"type": "object",
"properties": {
"date": {
"type": "string",
"example": "2004-06-16T00:00:00.000Z"
},
"event": {
"type": "string",
"example": "Sale"
},
"price": {
"type": "integer",
"default": 0,
"example": 95000
}
}
},
"2017-10-19": {
"type": "object",
"properties": {
"date": {
"type": "string",
"example": "2017-10-19T00:00:00.000Z"
},
"event": {
"type": "string",
"example": "Sale"
},
"price": {
"type": "integer",
"default": 0,
"example": 185000
}
}
}
}
},
"lotSize": {
"type": "integer",
"default": 0,
"example": 8843
},
"zipCode": {
"type": "string",
"example": "78244"
},
"bedrooms": {
"type": "integer",
"default": 0,
"example": 3
},
"features": {
"type": "object",
"properties": {
"pool": {
"type": "boolean",
"default": true,
"example": true
},
"garage": {
"type": "boolean",
"default": true,
"example": true
},
"cooling": {
"type": "boolean",
"default": true,
"example": true
},
"heating": {
"type": "boolean",
"default": true,
"example": true
},
"poolType": {
"type": "string",
"example": "Concrete"
},
"roofType": {
"type": "string",
"example": "Asphalt"
},
"viewType": {
"type": "string",
"example": "City"
},
"fireplace": {
"type": "boolean",
"default": true,
"example": true
},
"roomCount": {
"type": "integer",
"default": 0,
"example": 5
},
"unitCount": {
"type": "integer",
"default": 0,
"example": 1
},
"floorCount": {
"type": "integer",
"default": 0,
"example": 1
},
"garageType": {
"type": "string",
"example": "Garage"
},
"coolingType": {
"type": "string",
"example": "Central"
},
"heatingType": {
"type": "string",
"example": "Forced Air"
},
"exteriorType": {
"type": "string",
"example": "Wood"
},
"garageSpaces": {
"type": "integer",
"default": 0,
"example": 2
},
"fireplaceType": {
"type": "string",
"example": "Masonry"
},
"foundationType": {
"type": "string",
"example": "Slab / Mat / Raft"
},
"architectureType": {
"type": "string",
"example": "Contemporary"
}
}
},
"latitude": {
"type": "number",
"default": 0,
"example": 29.476011
},
"bathrooms": {
"type": "integer",
"default": 0,
"example": 2
},
"longitude": {
"type": "number",
"default": 0,
"example": -98.351454
},
"yearBuilt": {
"type": "integer",
"default": 0,
"example": 1973
},
"assessorID": {
"type": "string",
"example": "05076-103-0500"
},
"subdivision": {
"type": "string",
"example": "CONV A/S CODE"
},
"addressLine1": {
"type": "string",
"example": "5500 Grand Lake Dr"
},
"addressLine2": {},
"lastSaleDate": {
"type": "string",
"example": "2017-10-19T00:00:00.000Z"
},
"propertyType": {
"type": "string",
"example": "Single Family"
},
"lastSalePrice": {
"type": "integer",
"default": 0,
"example": 185000
},
"ownerOccupied": {
"type": "boolean",
"default": true,
"example": false
},
"propertyTaxes": {
"type": "object",
"properties": {
"2019": {
"type": "object",
"properties": {
"year": {
"type": "integer",
"default": 0,
"example": 2019
},
"total": {
"type": "integer",
"default": 0,
"example": 2984
}
}
},
"2020": {
"type": "object",
"properties": {
"year": {
"type": "integer",
"default": 0,
"example": 2020
},
"total": {
"type": "integer",
"default": 0,
"example": 3023
}
}
},
"2021": {
"type": "object",
"properties": {
"year": {
"type": "integer",
"default": 0,
"example": 2021
},
"total": {
"type": "integer",
"default": 0,
"example": 3455
}
}
},
"2022": {
"type": "object",
"properties": {
"year": {
"type": "integer",
"default": 0,
"example": 2022
},
"total": {
"type": "integer",
"default": 0,
"example": 4091
}
}
},
"2023": {
"type": "object",
"properties": {
"year": {
"type": "integer",
"default": 0,
"example": 2023
},
"total": {
"type": "integer",
"default": 0,
"example": 4201
}
}
}
}
},
"squareFootage": {
"type": "integer",
"default": 0,
"example": 1878
},
"taxAssessments": {
"type": "object",
"properties": {
"2019": {
"type": "object",
"properties": {
"land": {
"type": "integer",
"default": 0,
"example": 23450
},
"year": {
"type": "integer",
"default": 0,
"example": 2019
},
"value": {
"type": "integer",
"default": 0,
"example": 135430
},
"improvements": {
"type": "integer",
"default": 0,
"example": 111980
}
}
},
"2020": {
"type": "object",
"properties": {
"land": {
"type": "integer",
"default": 0,
"example": 23450
},
"year": {
"type": "integer",
"default": 0,
"example": 2020
},
"value": {
"type": "integer",
"default": 0,
"example": 142610
},
"improvements": {
"type": "integer",
"default": 0,
"example": 119160
}
}
},
"2021": {
"type": "object",
"properties": {
"land": {
"type": "integer",
"default": 0,
"example": 45050
},
"year": {
"type": "integer",
"default": 0,
"example": 2021
},
"value": {
"type": "integer",
"default": 0,
"example": 163440
},
"improvements": {
"type": "integer",
"default": 0,
"example": 118390
}
}
},
"2022": {
"type": "object",
"properties": {
"land": {
"type": "integer",
"default": 0,
"example": 49560
},
"year": {
"type": "integer",
"default": 0,
"example": 2022
},
"value": {
"type": "integer",
"default": 0,
"example": 197600
},
"improvements": {
"type": "integer",
"default": 0,
"example": 148040
}
}
},
"2023": {
"type": "object",
"properties": {
"land": {
"type": "integer",
"default": 0,
"example": 59380
},
"year": {
"type": "integer",
"default": 0,
"example": 2023
},
"value": {
"type": "integer",
"default": 0,
"example": 225790
},
"improvements": {
"type": "integer",
"default": 0,
"example": 166410
}
}
}
}
},
"formattedAddress": {
"type": "string",
"example": "5500 Grand Lake Dr, San Antonio, TX 78244"
},
"legalDescription": {
"type": "string",
"example": "CB 5076A BLK 3 LOT 50"
}
}
}
}Tags
x402
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