Expedia Car rental quotes API

Please help me write a data collection script with the EveryInfra Expedia Car rental quotes endpoint (expedia/car_rental).

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 expedia and action to car_rental, and put the parameters inside params.
- Required parameters:
  - keyword: Specifies the hotel destination for search actions or the pick-up location or full Expedia carsearch URL for car_rental.
- Optional parameters:
  - check_in: Serves as a compatibility alias for car_rental pick-up dates and is evaluated only when pick_up_date is omitted. It does not filter hotel check-in dates on this endpoint.
  - check_out: Serves as a compatibility alias for car_rental drop-off dates and is evaluated only when drop_off_date is omitted. It does not filter hotel check-out dates on this endpoint.
  - drop_off_date: Specifies the car rental drop-off date using YYYY-MM-DD format. If a pick-up date is provided without a drop-off date, the system defaults to the same day, so an explicit later date should be provided.
  - pick_up_date: Specifies the car rental pick-up date using YYYY-MM-DD format and takes precedence over check_in. If omitted, default timing is set to 30 days from today with a 2-day duration.
  - limit: The most rows to return in this call, an integer from 1 to 100. 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: id, url, title, vehicle_category, vendor_name, price, price_total, rating, rating_scale, rating_label, attributes, pick_up_location; 18 fields in total, full list at https://api.everyinfra.com/api/v1/social/catalog?platform=expedia.
- Example request body:
{
  "platform": "expedia",
  "action": "car_rental",
  "params": {
    "keyword": "Las Vegas, Nevada, United States of America"
  }
}
- 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.