PayAI
PayAI is a facilitator for the x402 payment protocol. Its own site describes it as verifying and settling stablecoin payments for merchants across Solana and EVM networks, so that an API or an application can charge an AI agent per request.
PayAI's site states the facilitator role in its own words: it verifies signed payment payloads, broadcasts settlements, sponsors transaction fees where the chain allows it, and returns a structured result to the merchant. Its site puts Solana ahead of the other networks it lists as settling on. The entries on Solana and Base define two of them.
It also publishes a discovery catalogue, which its documentation calls the Bazaar: a public list of x402 resources filled automatically from the payments its facilitator processes. The entry on a Bazaar sets out what that name covers.
→ probe402 set out how each catalogue lists and removes a service, this one among them, in this issue of the Machine Commerce Reality Index.
Sources
- PayAI — x402 Payment Facilitator for AI Agents & AppsPayAI
- About PayAIPayAI
- Bazaar DiscoveryPayAI documentation
Related facilitator · Bazaar · Solana · Base · Coinbase Developer Platform (CDP)