Retrieve property valuations and AVM via HouseCanary Analytics API

Steps

1. Register for API access at housecanary.com; authentication uses HTTP Basic Auth with your API key as the username and your API secret as the password on every request.
2. The API base URL is documented at api-docs.housecanary.com; endpoints are organized by level (property, block, ZIP, MSA) and by data type (value, risk, rental, forecast).
3. To fetch an AVM for a single property, call the property/value endpoint with address and zipcode as query parameters; the response includes the estimated value and a high/low confidence range.
4. For rental valuation, call the property/rental_value endpoint with the same address parameters; the response returns the estimated monthly rent and comparable rental properties.
5. Batch multiple addresses in a single request using the bulk endpoint variants (up to the limit specified in your plan) to reduce round trips when processing a portfolio.
6. Use the property/value_forecast endpoint to retrieve projected value changes over a configurable horizon; combine with the canary_rental_index endpoint for gross yield analysis at the ZIP or MSA level.