SERP Search API

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

How the endpoint works:
- 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 web and action to search, and put the parameters inside params.
- Required parameters:
  - keyword: Specifies the web search query expression. Returns result titles, URLs, and snippets; it does not fetch the full page content of the search results or filter by platform name.
- Optional parameters:
  - country: Sets a country or region preference for search results using a code such as us. It affects geographic relevance, not the calling server's location, and does not guarantee that every result is located in that country.
  - language: Sets the search interface and result-language preference, such as en or zh-cn. It does not translate the returned page content.
  - limit: The most rows to return in this call, an integer from 1 to 10. The default applies when you leave it out, and a call can return fewer rows. Larger values are accepted and capped at the maximum.
- Returns a list of records. Main fields of each record: title, url, text, rank, published_at, image_url, sub_links.
- Example request body:
{
  "platform": "web",
  "action": "search",
  "params": {
    "keyword": "Python documentation"
  }
}
- 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.