API

Developer API — call GREM tools programmatically over HTTPS

Start using the GREM Developer API: base URL, get a key, make your first call

API keys, Bearer authentication, key formats and scopes

RFC 7807 problem+json error format and status codes

Rate-limit headers, 429 handling, included calls and pay-as-you-go

Safely retry POST requests with an Idempotency-Key

Receive job-completion events and verify the HMAC signature

Official dependency-free TypeScript/JavaScript client for the GREM API

Read the public property/rental/complex catalog in a stable, allowlisted shape

Decode the enum codes returned by the object endpoints into human labels

The full list of GREM tools available over HTTPS: synchronous and deferred calls, file uploads, polling a job

Read your own leads, submit an enquiry from outside, change the status, match inventory, and work the agency pool

Sessions, sending messages, history, and streaming the assistant's answer into your own interface

Uploading images for listings and downloading the artifacts the tools generated