The open protocol for machine-to-machine payments.
Charge for API requests, tool calls, or content—agents and apps pay in the same HTTP request.
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MPP Terminal
mpp.dev@e716f37 (released 4h ago)
$ ./mpp.sh
Integrations
Blog
See updates from the MPP team on protocol development, integrations, and more.
mppx for agent SDKs and harnesses
July 27, 2026
New mppx hooks connect agent runtimes to paid tools and HTTP services through MPP.
An improved sessions experience
June 17, 2026
Pay-as-you-go API billing is now cheaper and easier to integrate.
EVM and x402 support
June 8, 2026
MPP now supports generic EVM payments and x402 exact flows from one SDK.
Payment hooks
May 21, 2026
Core SDKs now expose typed payment hooks for logging, monitoring, and request context.
Subscriptions
May 12, 2026
Enable recurring access for paid plans, memberships, and API tiers.
See all blog posts