SendCheck — EVM address verification (x402) for Claude.ai

org.pennyforge.api/sendcheck

Pre-send EVM address checks: free pre-check, $0.01 check, $0.05 deep scan. x402: payment is auth.

client:Claude.ai transport:streamable-http tools:3

Install SendCheck — EVM address verification (x402) in Claude.ai

Settings → Connectors → Add custom connector

https://api.pennyforge.org/mcp

Claude on the web takes a remote URL and completes OAuth in the browser. For a packaged server use Claude Desktop or Claude Code instead. Claude.ai docs

What Claude.ai can do once it is connected

validate_address
check_address
deep_scan

SendCheck — EVM address verification (x402) in other clients

Claude Code
Claude Desktop
Cursor
VS Code
Zed
Windsurf
Cline
Gemini CLI
Grok
ChatGPT
LangChain

SendCheck — EVM address verification (x402) MCP server