0pi

In my last startup, we had a huge problem "jump starting" a two sided marketplace - the chicken and egg problem. I think x402 and agents will be a killer play for crypto, but it will take time for mainstream tech to adopt the standard. One way is to synthesise one side of a market and attract the other to get started. This is what 0pi aims to do for x402 and programmatic APIs.

0pi let's users wrap any API in a x402 response - allowing it to be consumed on a pay-as-you-go basis programatically by AI agents. Creators of endpoints earn a USDC fee (which they can set higher than the underlying API cost) for adding endpoints and their key. Consumer agents pay with USDC on Base with each request to the provider's ENS address, which also serves as a reputation brand as they add more. Malicious users are prevented from spiking the response by comparing the 0pi response and underlying response on TheGraph.

Python FastAPI backend, pip and node packages, Coinbase's x402 standard, TheGraph for comparison and verification of responses and ENS for easy wallet address access. Warp helped me vibe code especially with frontend styling and quick viewing of docs (thought it required a lot of PDF doc uploads to make work).