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POST
Start Lookalike Search (Async)

Authorizations

x-api-key
string
header
required

Your Sixtyfour API key.

Body

application/json

Start a lookalike audience search from exactly one seed source.

csv_resource_handle_id
string | null

Resource handle returned by POST /storage/csv/upload.

Maximum string length: 200
linkedin_urls
string[] | null

LinkedIn profile URLs to seed from (max 1,000).

Maximum array length: 1000
Maximum string length: 2048
guidance
string | null

Optional natural-language guidance for cohort analysis.

Maximum string length: 2000

Response

Successful Response

task_id
string
required

Async task ID; poll GET /search/lookalike/{task_id}.

search_id
string
required

The search's ID.

status
string
required

Initial task status.

seed_diagnostics
SeedDiagnostics · object
required

How the seeds resolved to profiles.