Proof x401
Open HTTP protocol and MCP server that let a website ask an AI agent to prove who it is acting for and have the person cryptographically sign the exact transaction terms, using Proof's agent identity wallet.
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Use cases
About Proof x401
Proof x401 is listed in our crypto category and is aimed at builders. Open HTTP protocol and MCP server that let a website ask an AI agent to prove who it is acting for and have the person cryptographically sign the exact transaction terms, using Proof's agent identity wallet. Pricing, as the maker states it: Open protocol; websites can pay per verified identity claim over x402, basic claims need no sales process. Maturity: Live; production launch Oct 15, 2026. We last checked the official link on 2026-10-16.
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