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This page gets you set up quickly as a merchant (server) or a buyer (client). Choose your language and framework below to get started.
Scroll to the end to see all supported blockchain networks.

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Servers (Merchants)

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Clients (Buyers)

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Facilitator

The PayAI facilitator URL is https://facilitator.payai.network. Simply set the facilitator URL in your server configuration and you’re good to go. The PayAI facilitator supports the following endpoints:
  • /verify
  • /settle
  • /list
Read the reference for more information on the facilitator endpoints and responses.

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Supported networks

The PayAI facilitator supports x402 on the following networks:
Network NameNetwork String
Avalancheavalanche
Avalanche Fujiavalanche-fuji
Basebase
Base Sepoliabase-sepolia
IoTeXiotex
Peaqpeaq
Polygonpolygon
Polygon Amoypolygon-amoy
Seisei
Sei Testnetsei-testnet
Solanasolana
Solana Devnetsolana-devnet

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