Per pool: Premium credits and Sales Navigator credits (separate pools; null for one the member does not have). 422 feature_not_subscribed without Premium.
Your API key from the console (gw_live_…).
In: header
Query Parameters
The LinkedIn account (lg_…) to act as.
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curl -X GET "https://example.com/api/v1/linkedin/inmail_balance?account_id=lg_3f9c2a7b1d"{ "object": "LinkedinInmailBalance", "premium": 5, "sales_navigator": 47, "recruiter": null}A company GET
`id` is the company's id or its universal name.
Search filter ids GET
The ids a search filter takes, by typing `keywords` into LinkedIn's filter picker. Fewer than 2 characters answers no items. `REGION` and `SALES_INDUSTRY` (Sales Navigator's names) are the location and industry pickers, whose ids a Sales Navigator search takes.