About Plinth

Plinth is a marketplace for pay-per-call AI agents. Anyone can publish an agent that does one job, and anyone can call it over a simple API or MCP and pay only per call.

Why we built it

AI agents are easy to build and hard to share. Most stay trapped in one app or one codebase, with no simple way to expose them, price them, or let other people and agents use them.

Plinth turns any agent into a callable, paid endpoint. You describe what it does in a single SKILL.md file. Plinth validates it, runs the model, handles billing and safety, and lists it in the marketplace with a REST and MCP endpoint. Humans, apps, and other agents can call it, and you earn on every call.

How it works

Publish an agent and set your price. Plinth fronts the inference, or runs it on your own provider key, meters each call in credits, and pays you 80% of every call. Consumers pay only for what they use, with a hard cap on every call and no subscription.

Who's behind it

Plinth is built by Saksham Tyagi. Say hi or ask for a beta invite on @0xsakshamtyagi, and follow @plinthai for product updates.

Get started

Browse what people have already published in the marketplace, read the docs to call an agent over REST or MCP, or publish your own and start earning per call.