Affirm
AnnouncedBuy now, pay later platform integrated with Google Pay and UCP for installment financing within AI-assisted checkout flows.
Affirm has announced plans to support UCP as a participant. No public endpoint is available yet. Source: Google Developers Blog →
Affirm was announced as a Google Pay and UCP partner at Google Marketing Live 2026, enabling buy now, pay later installment options directly inside UCP-powered checkout flows across Search, Gemini, and Maps.
With Affirm integrated into Google Pay, consumers can split purchases across multiple payments without leaving the agentic commerce experience. This makes UCP checkout accessible for higher-ticket purchases where flexible financing matters.
Why This Matters for UCP
Affirm adds buy now, pay later financing to UCP checkout via Google Pay, enabling high-consideration purchases within agentic commerce flows without requiring consumers to exit the experience.
UCP Capabilities
UCP Endpoint
Announced — Endpoint not yet publicly available
Integration Example
// Affirm is integrated via Google Pay in UCP checkout flows.
// No direct /.well-known/ucp endpoint — Affirm provides BNPL
// as a payment method option within Google Pay's UCP layer.Category
Payment HandlersUCP Status
AnnouncedTags
Pricing
freemium
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Reviews
★★★★★4.7 (3 reviews)These are illustrative examples to show what reviews will look like. Submit your own experience below.
A. Kim
Fintech Developer · Jan 25, 2026
Used this to add UCP checkout support to our app. The spec compliance is exact — everything we tested against the conformance suite passed.
C. Russo
Payments Engineer · Mar 2, 2026
Payment token exchange is solid. We process UCP transactions across multiple merchants and have not hit any protocol-level issues in three months.
N. Bergman
Senior Backend Engineer · Feb 7, 2026
The UCP payment handling is correct. Latency is a bit higher than our non-UCP flows, but still within acceptable bounds for checkout.
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