KnowFirm · playgroundDocs

Try the API

Paste your API key (create one in the dashboard) and send a request. Live keys (kf_live_) count toward your usage; test keys (kf_test_) do not.

Errors: 401 bad/missing key · 402 over quota · 429 rate limited ·404 no match. KYB data only — not a consumer report (FCRA).