API PLATFORM

DEAL D Developer API

Build on top of the Eastern Seaboard's property data — listings, AI valuation and leads. REST today; GraphQL, SDKs and OpenAPI/Swagger spec in the partner program.

# Try it now (demo keys not required)

curl "http://localhost:3000/api/properties?type=condo&nearBeach=1&limit=3"

# Single listing + trust report

curl "http://localhost:3000/api/properties/shoreline-jomtien-2br-seaview"

Endpoints

GET

/api/properties

List & search listings. Filters: purpose, type, province, priceMin/Max, bedrooms, q (synonym + typo-tolerant), nearBeach=1, foreignQuota=1, sort, page, limit.

GET

/api/properties/{id}

Single listing with AI valuation, yield, landmarks and Trust & Safety report. Accepts id or slug.

POST

/api/leads

(Partner scope) Create a lead against a listing. Webhook lead.created fires to your endpoint.

POST

/api/valuation

(Partner scope) AI price estimate for an arbitrary property: type, area, location, floor, view.

Authentication

API key via X-API-Key header, or OAuth2 client-credentials for partner scopes.

Rate limits

Free 1k req/day · Partner 10k · Enterprise custom. 429 + Retry-After on exceed.

Webhooks

listing.createdlisting.updatedlead.createddeal.closedprice.changed

Partner program includes: OpenAPI 3.1 spec, Swagger UI, JS/Python SDKs, sandbox environment, HMAC-signed webhooks, and SLA support.