Media Caption Docs

v1

Media Caption API v1

Authentication

Authenticate every public API request with a live Media Caption API key.

Bearer keys

Authorization: Bearer mc_live_xxx

Alternative header

X-API-Key: mc_live_xxx

Failure modes

missing_api_key returns 401 when no key is sent.
invalid_api_key returns 401 for malformed, unknown, or revoked keys.
When both headers are present, bearer authentication takes precedence.