MPP Session Flow (Streaming Payments)

Before writing code

Fetch live docs:

1. Fetch https://www.npmjs.com/package/mppx for the session middleware API and payment channel configuration
2. Fetch https://paymentauth.org/ for the canonical session intent specification
3. Web-search mpp session streaming micropayments payment channel for session implementation patterns
4. Web-search site:mpp.dev session for session-specific documentation

Conceptual Architecture

What Session Intent Is

The session intent implements streaming micropayments — often described as "OAuth for money". The agent authorizes a spending limit upfront, then streams micropayments continuously as it consumes resources: