Receipt — sign an agent's work, verify it offline for Claude Code
io.github.ecstatica/ggbank-receipt
Ed25519 receipts over work artifacts: issue and verify offline, no account, no chain, no network.
client:Claude Code
transport:streamable-http
runtime:mcpb
tools:2
Install Receipt — sign an agent's work, verify it offline in Claude Code
run in your project directory
claude mcp add --transport http ggbank-receipt https://receipt.whirlwindcorp.com/mcpAdds it for this project only. Append --scope user to make it available everywhere. Claude Code docs