AI agents are no longer just assistants - they’re buyers. Stripe CEO Patrick Collison reported a parabolic rise in new AI-native firms since early 2026, with autonomous systems now initiating transactions at scale. These agents don’t browse or click; they execute, demanding a new financial stack.
To meet this, Stripe launched Tempo, a blockchain built for streaming payments. In a live demo, agents paid in stablecoin fractions as small as 3,000ths of a cent - amounts that would drown in ACH or card fees. The Machine Payments Protocol (MPP) lets services declare pricing over HTTP, so agents can pay without human interfaces.
"Legacy rails are too slow and expensive for agents burning tokens by the millisecond."
- Will Gaybrick, Stripe
This isn’t speculative. Stripe Treasury now holds stablecoins alongside dollars and euros, enabling instant, free transfers across 160 countries. The goal: treat money as data. For AI-driven firms, geography no longer dictates access.
But the shift brings new risks. Emily, lead of Stripe Radar, found one in six signups at AI companies involves multi-account abuse - fraudsters cycling through trials to steal compute. Traditional fraud tools miss this. Radar now blocks attempts in real time using cross-network signals and device fingerprinting.
The stakes are real. Shopify’s catalog API, now accessible via Stripe’s agentic suite, exposes billions of products to autonomous buyers. As agents gain spending power, the line between user and actor blurs. Policies - not approvals - govern spending: set limits, then let agents decide.
"We’re moving from moments to policies."
- Ginger Baker, Meta
The infrastructure pivot is here. AI isn’t just changing software - it’s rebuilding payments from the ground up.




