Śrī Caitanya Mahāprabhu is the incarnation for this Age of Kali, as confirmed in many places throughout the Purāṇas, the Mahābhārata, Śrīmad-Bhāgavatam and the Upaniṣads. The summary of His appearance is given in Caitanya-caritāmṛta (Madhya 6.99) as follows:
kali-yuge līlāvatāra nā kare bhagavān
ataeva ‘tri-yuga’ kari’ kahi tāra nāma
In this Age of Kali, the Supreme Personality of Godhead (Bhagavān) does not appear as a līlāvatāra, an incarnation to display pastimes. Therefore He is known as tri-yuga. Unlike other incarnations, Lord Śrī Caitanya Mahāprabhu appears in this Age of Kali as a devotee of the Lord. Therefore He is called a concealed incarnation (channāvatāra).