Platforms that price the pipe, not the people

I’ve been noodling on a kind of platform that’s refreshingly… boring. It exists to maintain the marketplace, not to mine users. Pricing is simple: cost of service + a small, disclosed margin. It scales on usage, not user counts. Providers earn by being efficient; buyers get clean price signals without hidden tolls.

A live example

Mark Cuban’s Cost Plus Drugs—they publish the formula (manufacturer cost + 15% + small pharmacy fee + shipping). No rebate shell games, no mystery markups. It’s “neutral rails” trying to build trust.

Design principles (the vibe I’m chasing):

• Price the pipe, not the people. Meter on transactions/bandwidth/queries, not seats.
• Radical line-item transparency. Publish the fee formula and what drives costs.
• No cross-subsidy games. Avoid rebates/kickbacks that distort price signals.
• Aligned incentives. Efficiency for users should translate to volume/retention for the platform—not penalties.
• Composability over lock-in. Be the boring, reliable rail others plug into.
• Governance with a spine. Clear criteria for saying “no” to scope creep beyond core maintenance.

Why I care:

When the platform’s main “feature” is keeping the pipes honest, markets work better. Sellers compete on real value. Buyers see true trade-offs. The platform earns enough to keep the lights on—without dark patterns or data moats.

Curious if you’re seeing similar models in payments, logistics, AI infra, or local services. If we want markets to behave like markets, we need more platforms that are just… platforms.

Big questions:

Where does transparency hit limits? what’s the minimal margin that still funds resilience? and how do you bootstrap a network without lock-in?