Send Linking Invite

curl --request POST \
  --url https://playground.answeringagent.com/api/v1/partner-links \
  --header 'Content-Type: application/json' \
  --header 'X-API-KEY: <api-key>' \
  --data '
{
  "email": "jsmith@example.com",
  "external_id": "<string>"
}
'

{
  "id": 123,
  "email": "<string>",
  "external_id": "<string>",
  "status": "pending"
}