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The Partner API authenticates with a bearer key. Send it in the Authorization header on every request:

Keys

Keys are issued from the partner dashboard, not through public signup. Two prefixes tell the environments apart:
  • clmt_live_: live mode, against real companies and billing.
  • clmt_test_: test mode, against a sandbox that creates nothing real.
The raw key is shown once, at creation, and never again. Store it before you leave the response. If it leaks, rotate it from the dashboard.

Errors

A missing, malformed, or revoked key is answered 401 with the standard error envelope (see Errors):
Branch on code, never on detail. The wording may change.

Example