x402-list
x402-list is a monitored directory and API for discovering services that accept x402 payments.
What is x402-list?
x402-list publishes x402 service metadata, prices, uptime, protocol checks, and measured USDC settlement data across supported networks. It provides free read-only REST access and a hosted MCP server, while sustained bulk API usage and an MCP assessment tool can incur x402 fees. Payment readiness is based on HTTP 402 handshake checks; verified delivery requires a separate probe.
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Alchemy Portfolio APIApp 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.
