domain: rentcast.io · 6 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Sign up at rentcast.io to obtain your API key; 50 free calls are included and paid plans start from there
Call GET /v1/avm/rent/long-term with address, bedrooms, bathrooms, and squareFootage parameters to receive a rent estimate, estimate range, and confidence score
Retrieve the comps used in the estimate from the same response body under the comparables array; each comp includes address, rent, distance, and similarity score
For market-level rent trends, use GET /v1/markets with a zipCode or city/state to get median rent, inventory counts, and month-over-month change
For active rental listings near a subject property, query GET /v1/listings/rental/long-term with address and radius parameters
Reference the interactive API sandbox at developers.rentcast.io to test all endpoints and generate code snippets before integrating
Known gotchas
Rent estimates are modeled values derived from comparable listings data, not appraisals; confidence scores vary significantly in low-density rental markets where comp data is thin
API calls are consumed per request regardless of whether a valid estimate is returned; empty responses for rural or unusual properties still count against your quota
RentCast covers U.S. residential long-term rentals primarily; short-term/vacation rental comps and commercial properties are outside the scope of the standard endpoints
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