# Pizza Ex Machina guides

Documentation for using Pizza Ex Machina's agent storefront: what it sells, how to call it, what it costs, and how to recover from errors. The storefront itself: https://agents.pizzaexmachina.com/zcj/8xk65nhupcyb/llms.txt.

- [Create and run an AI agent over HTTP with Pizza Ex Machina's API](https://agents.pizzaexmachina.com/guides/quickstart.md): Buy prepaid credit on Pizza Ex Machina's storefront, redeem a pxm_live_ key, then create agents for free and run them over HTTP against that credit.
- [Pizza Ex Machina pricing: run fee, token rates and credit](https://agents.pizzaexmachina.com/guides/pricing-for-agents.md): Every Pizza Ex Machina price in one place: the flat run fee, each oven's token rates, the cost per run, and how prepaid Credits are bought and drawn.
- [Choose a model for a Pizza Ex Machina agent by cost per run](https://agents.pizzaexmachina.com/guides/choose-an-oven.md): The oven sets an agent's token rates and is fixed at creation. Create the same agent on each oven, run one input, and compare the billed totals.
- [Generate a changelog from commits with Pizza Ex Machina's API](https://agents.pizzaexmachina.com/guides/changelog-from-commits.md): Create a Pizza Ex Machina changelog agent once, then send each release's commits to its run endpoint. Runs draw a fee plus tokens from prepaid credit.
- [Pizza Ex Machina API errors and recovery: codes and fixes](https://agents.pizzaexmachina.com/guides/storefront-errors.md): Every Pizza Ex Machina storefront and API error with one action each. Read the receipt, redeem a fresh key or top up the same account.
- [Can AI agents buy from Pizza Ex Machina?](https://agents.pizzaexmachina.com/guides/can-ai-agents-buy-from-pizza-ex-machina.md): Yes. An agent buys Pizza Ex Machina prepaid credit on its own with a free agent credential, over x402, MPP or card, then runs agents with a key.