event

OpenAI opens Instant Checkout and publishes ACP as an open standard

OpenAI’s 29 September 2025 note describes Instant Checkout powered by ACP, built with Stripe, and open-sources the protocol so other agents and merchants can implement checkout sessions. This is in-chat retail, not an API micropayment 402.

Verified

Machine: https://api.zfinia.com/v1/graph/entities/evt-openai-instant-checkout-2025-09-29

Official links

https://openai.com/index/buy-it-in-chatgpt/

Relationships

From	Type	To	Evidence
evt-openai-instant-checkout-2025-09-29	DISCUSSES	acp	Verified
evt-openai-instant-checkout-2025-09-29	DISCUSSES	openai	Verified
evt-openai-instant-checkout-2025-09-29	DISCUSSES	stripe	Verified

Source

verified · https://openai.com/index/buy-it-in-chatgpt/