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Machine Payments Protocol

Automate trustless machine-to-machine payments with one open protocol

Machine Payments Protocol lets APIs and agents charge per request directly in the same HTTP call, enabling seamless machine-to-machine payments. It standardizes usage-based billing for AI agents, APIs, and autonomous applications without adding separate billing infrastructure.

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More about Machine Payments Protocol

Machine Payments Protocol (MPP) is an open standard that lets APIs, agents, and autonomous applications charge per request directly within the same HTTP call. Instead of bolting on separate billing layers, MPP embeds payment instructions into normal request–response flows, enabling seamless machine-to-machine value transfer.

Built in collaboration with Tempo and Stripe, MPP is designed for developers who need precise, usage-based monetization without complex integrations. Charge per API request, tool invocation, or content generation while preserving a familiar HTTP workflow. This makes it ideal for AI agents, microservices, and pay-per-call infrastructure.

With Machine Payments Protocol, you can:

Expose metered endpoints that automatically collect payment on each successful call
Experiment with granular pricing for LLM tools, plugins, and external capabilities
Align infrastructure costs with revenue through per-request billing

By standardizing how machines pay each other, MPP unlocks new business models for autonomous agents, usage-based APIs, and programmable commerce, all while staying interoperable across providers.