Question 1

How do AI agents pay for APIs on Proxagora?

Accepted Answer

Agents pay per call using x402 micropayments (USDC on Base blockchain) or Stripe Micropayment Protocol (MPP). No signup or API key required — the payment header is the authentication.

Question 2

What is x402?

Accepted Answer

x402 is the HTTP 402 'Payment Required' status code repurposed for machine-to-machine micropayments. An agent receives a 402 response, constructs a USDC payment on Base, and retries with an X-Payment header.

Question 3

How do I publish an API on Proxagora?

Accepted Answer

Developers can publish APIs at proxagora.com/dashboard/publish. Proxagora handles payment collection and takes a 22% platform fee, with weekly payouts via Stripe Connect Express.

Proxagora Blog

Building an Agent That Pays for Its Own API Calls