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Wren Pre-sign Check

Official registry AI and agents

Check a tx, EIP-712 payload, text or Base token before your agent signs. Paid per call over x402.

Website

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http wren-pre-sign-check 'https://wren-presign-check.wrenonbase.workers.dev/mcp'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "wren-pre-sign-check": {
            "type": "http",
            "url": "https://wren-presign-check.wrenonbase.workers.dev/mcp"
        }
    }
}

Frequently asked questions

What is Wren Pre-sign Check?

Check a tx, EIP-712 payload, text or Base token before your agent signs. Paid per call over x402.

How do I install Wren Pre-sign Check?

It runs as a remote server. In Claude Code: claude mcp add --transport http wren-pre-sign-check 'https://wren-presign-check.wrenonbase.workers.dev/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does Wren Pre-sign Check need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Who maintains Wren Pre-sign Check?

It is published by claudeisgod. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.