Add new keywords to the list

Add one or more keywords to an existing keyword list.

Required field:

• keyword_ids — non-empty array of keyword IDs

Duplicates are handled silently (an existing keyword is not added twice). Fails with HTTP 403 when adding would exceed the maximum number of keywords allowed per list. Returns HTTP 204.

curl -X POST "https://api.mangools.com/v3/kwfinder/lists/string/keyword" \  -H "Content-Type: application/json" \  -d '{    "keyword_ids": [      "916647301d98e2ec41df257cbdf97ac0",      "916647301d98e2ec41df257cbdf97ac0"    ]  }'