Zillow Search API

Please help me write a data collection script with the EveryInfra Zillow Search endpoint (zillow/search).

Endpoint contract:
- Request: POST https://api.everyinfra.com/api/v1/social with the header Authorization: Bearer <API key>. Read the key from the EVERYINFRA_API_KEY environment variable and never hard-code it.
- In the request body, set platform to zillow and action to search, and put the parameters inside params.
- Required parameters:
  - keyword: A city, region, or ZIP-code location for search. In agents, it instead represents a US state abbreviation such as TX; it is not an agent-name query.
- Optional parameters:
  - category: The location type for search, not a home type: auto_detect, address, borough, city, county, flex_region, neighborhood, school, state, or zipcode. (allowed: address / auto_detect / borough / city / county / flex_region / neighborhood / school)
  - max_price: The maximum listing-price filter for search and zip_search. In zip_search, it overrides price_max. It is not the upper bound of a Zillow home-value estimate.
  - min_price: The standard minimum-price field for search and zip_search. In zip_search, it overrides price_min. It is not an agent service fee.
  - sort: The listing order for search: relevance, newest (latest listings), recently_changed, price_asc or price_desc (price low to high or high to low), bedrooms, bathrooms, sqft (interior area), lot_size, or year_built. (allowed: bathrooms / bedrooms / lot_size / newest / price_asc / price_desc / recently_changed / relevance)
  - limit: The most rows to return in this call, an integer from 1 to 200. The default applies when you leave it out, and a call can return fewer rows. Larger values return 422 before any charge. (default: 20)
- Returns a list of records. Main fields of each record: zpid, url, status, status_type, price, currency, address, street, city, state, zipcode, latitude; 29 fields in total, full list at https://api.everyinfra.com/api/v1/social/catalog?platform=zillow.
- Example request body:
{
  "platform": "zillow",
  "action": "search",
  "params": {
    "keyword": "Austin, TX"
  }
}
- Price: $1.39 per 1,000 requests; failed and empty results are not charged.
- For dozens or hundreds of targets, add "mode": "async" to the body: you get a job_id at once and poll GET https://api.everyinfra.com/api/v1/jobs/{job_id} for the result.
- On 422, fix the request using the suggested parameter names and allowed values in the error; on 429 or 503, wait for Retry-After and try again.

Before writing code, ask me which targets I need, how many, which fields, and what output format I want; then confirm the plan and the rough cost with me.