The API uses Bearer tokens (API keys). Every request carries your key in theDocumentation Index
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Authorization header.
The API key
The API key is issued from the dashboard, under Settings → API. It has thesk_1to1_ prefix.
The business slug
Every endpoint includes your business’s{slug} in the URL:
slug must belong to the same business. Each business
is isolated: an API key never accesses another’s data — if they don’t match,
the API responds 403 TOKEN_BUSINESS_MISMATCH.
Authentication errors
INVALID_API_TOKEN — 401
INVALID_API_TOKEN — 401
The API key is missing, malformed, or does not exist. Check that the
Authorization header is present and has the format Bearer sk_1to1_....TOKEN_BUSINESS_MISMATCH — 403
TOKEN_BUSINESS_MISMATCH — 403
The API key is valid but does not belong to the business of the
slug in
the URL. Use the slug of the same business that issued the key.