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mcp/harbor
Verified official

Wren Pre-sign Check MCP

v1.4.0

io.github.claudeisgod/wren-presign-check

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

transport:streamable-http tools:4
Website

Target client

run in your project directory 

claude mcp add --transport http wren-presign-check https://wren-presign-check.wrenonbase.workers.dev/mcp

setup guides: Claude Code Claude Desktop Cursor VS Code Zed Windsurf Cline Gemini CLI Grok ChatGPT Claude.ai LangChain

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

presign_check

presign check

screen_text

screen text

token_facts

token facts

presign_demo

presign demo

All 4 tools, one page each

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. Check the server's own documentation before granting access.