Show HN: Backproto – network backpressure routing applied to AI agent payments

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I’ve been applying backpressure routing (Tassiulas-Ephremides, 1992) to payment flows between AI agents.<p>Streaming payment protocols let agents pay each other in real time, but there&#x27;s no congestion control. When a downstream agent hits capacity, money keeps arriving. No reroute, no throttle, no feedback signal. TCP solved this for data networks. Agent payment networks haven’t.<p>Backproto makes receiver-side capacity a protocol primitive. Agents stake tokens to declare capacity (concave