
PayAI
PayAI is an x402 payment facilitator that lets AI agents and apps accept stablecoin micropayments on Solana.

What is PayAI?
PayAI handles x402 payments for AI agents, SaaS, and APIs by settling stablecoin transactions in under a second on Solana. Merchants integrate pay-per-request pricing with no API keys or accounts, test payments against the Echo Merchant for free, and discover agent services through the open agent marketplace.
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PayAI alternatives
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App store listings are independently reviewed and written by Alchemy using a combination of inbound submissions, editorial research, public project sources, and third-party directories, including ecosystem data from The Grid under the Open Database License, DefiLlama, DappRadar, Reown, and chain ecosystem pages.

