Upwork Search API

Please help me write a data collection script with the EveryInfra Upwork Search endpoint (upwork/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 upwork and action to search, and put the parameters inside params.
- Required parameters:
  - keyword: Searches for outsourcing jobs in search and talent in freelancers. The same skill term maps to client demand and freelancer profiles across the two actions.
- Optional parameters:
  - exclude_keywords: Job keywords to exclude in search, rather than a talent blacklist or minimum skill requirement.
  - experience_level: Filters jobs by experience level: entry_level, intermediate_level, or expert_level. (allowed: entry_level / expert_level / intermediate_level)
  - job_type: Contract billing type for search: hourly or fixed_price, rather than full-time or part-time. (allowed: fixed_price / hourly)
  - since: Job posting date start point for search, rather than the employer registration date.
  - sort: Job sorting order for search: newest, oldest, or relevance. oldest is not guaranteed to take effect in every case. (allowed: newest / oldest / relevance)
  - until: Job posting date end point for search, used in conjunction with since, rather than the contract end date.
  - 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, text, budget, budget_currency, hourly_rate_min, hourly_rate_max, job_type, experience_level, engagement_type, duration; 27 fields in total, full list at https://api.everyinfra.com/api/v1/social/catalog?platform=upwork.
- Example request body:
{
  "platform": "upwork",
  "action": "search",
  "params": {
    "keyword": "Python automation"
  }
}
- 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.