API jiēkǒu bìxū tōngguò jiànquán cáinéng diàoyòng.
The API endpoint can only be called after passing authentication.
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Pure tech/telecom jargon — you'll see it in API docs, network engineering, and 4G/5G specs. In everyday speech use 验证 (yànzhèng) or 登录 (dēnglù) instead. 鉴权 specifically connotes verifying credentials/tokens, not just checking identity.