Tempo mainnet ships with Stripe-coauthored Machine Payments Protocol
A payments chain plus an HTTP 402 protocol that is rail-agnostic across cards and stablecoins.
protocol
Tempo
Payments-focused chain that launched mainnet with MPP on 18 March 2026.
Machine: /v1/intelligence/entity/tempo · Graph: /v1/graph/entities/tempo
Graph relationships
Timeline
Stripe documents MPP as an internet-native way for agents to pay
PaymentIntents, Shared Payment Tokens and stablecoins without a checkout UI.
Mastercard is named as a Tempo/MPP design partner for agent payments
Card-network participation in MPP is a distribution signal, not a live volume print.