Developer API
Build on tax sale data.
A clean REST API for listings, assessments, and sale results across North America — with keys, filtering, and webhooks.
Capabilities
Everything you need to integrate
REST API
Predictable, resource-oriented endpoints with JSON responses.
API keys
Simple token auth with scoped, rotatable keys.
Rich filtering
Query by region, type, value, sale date, and more.
Webhooks
Get notified when matching listings post or change.
Endpoints
GET
/v1/opportunitiesList & filter opportunitiesGET
/v1/opportunities/{id}Fetch a single opportunityGET
/v1/regionsList covered provinces & statesPOST
/v1/alertsCreate a saved-search alert