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io.github.kaito3636/x402-presign-guard

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Publisher-provided description

Pre-sign EVM tx/approval safety for AI agents: decode calldata, flag drainers, return GO/HOLD/BLOCK.

Summary by lookupd

Lets an agent decode EVM transaction and approval calldata and return a GO, HOLD, or BLOCK verdict before signing.

Install

Claude Code, npm package (stdio)

claude mcp add x402-presign-guard -- npx -y x402-presign-guard

Codex, npm package (stdio)

codex mcp add x402-presign-guard -- npx -y x402-presign-guard

Cursor, npm package (stdio) → .cursor/mcp.json

{
  "mcpServers": {
    "x402-presign-guard": {
      "command": "npx",
      "args": [
        "-y",
        "x402-presign-guard"
      ]
    }
  }
}

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Details

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