ProofCheck for Claude Code
io.github.something-agent/proofcheck
Free x402 offer/receipt checker: verifies signatures and whether the signer fits the host.
client:Claude Code
transport:streamable-http
tools:5
Install ProofCheck in Claude Code
run in your project directory
claude mcp add --transport http proofcheck https://proofcheck.something-agent.workers.dev/mcpAdds it for this project only. Append --scope user to make it available everywhere. Claude Code docs