Realtor Search API

Please help me write a data collection script with the EveryInfra Realtor Search endpoint (realtor/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 realtor and action to search, and put the parameters inside params.
- Required parameters:
  - keyword: Specifies the search location for Realtor requests. For search, enter a city and state (e.g., Austin, TX) to find agents. For property_search, enter a 5-digit US ZIP code or a City, ST abbreviation.
- Optional parameters:
  - agent_type: Specifies the agent type for search. Allowed values are both (includes buyer and seller agents, default), buyer (buyer agents only), and seller (seller agents only). (allowed: both / buyer / seller)
  - min_rating: Filters agents by minimum rating for search. Pass a string array, such as ["4"]. Allowed values are 0, 1, 2, 3, 4, and 5, where 0 disables filtering. This parameter filters agent ratings, not property ratings. (allowed: 0 / 1 / 2 / 3 / 4 / 5)
  - limit: The most rows to return in this call, an integer from 1 to 500. The default applies when you leave it out, and a call can return fewer rows. Larger values return 422 before any charge. (default: 100)
- Returns a list of records. Main fields of each record: id, name, url, title, text, office_name, broker_name, city, state, postal_code, country, license_no; 25 fields in total, full list at https://api.everyinfra.com/api/v1/social/catalog?platform=realtor.
- Example request body:
{
  "platform": "realtor",
  "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.