SendCheck — EVM address verification (x402)

Name: SendCheck — EVM address verification (x402)
Author: pennyforge

pennyforge

Verify-before-pay client for the SendCheck x402 API — free address pre-check + the signed service card (ES256 JWS over payTo + per-route maxPrice). Zero deps.

Setup

Choose your client, copy the config, then fill in any required environment variables.

Add to Cursor Add to VS Code

claude mcp add --transport http sendcheck-evm-address-verification-x402 https://api.pennyforge.org/mcp

~/.codex/config.toml

[mcp_servers.sendcheck-evm-address-verification-x402]
url = "https://api.pennyforge.org/mcp"

# codex mcp add sendcheck-evm-address-verification-x402 --url https://api.pennyforge.org/mcp

~/.cursor/mcp.json

{
  "mcpServers": {
    "sendcheck-evm-address-verification-x402": {
      "url": "https://api.pennyforge.org/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "sendcheck-evm-address-verification-x402": {
      "type": "http",
      "url": "https://api.pennyforge.org/mcp"
    }
  }
}

~/.gemini/settings.json

{
  "mcpServers": {
    "sendcheck-evm-address-verification-x402": {
      "httpUrl": "https://api.pennyforge.org/mcp"
    }
  }
}

claude_desktop_config.json · Customize › Connectors › Add custom connector

{
  "mcpServers": {
    "sendcheck-evm-address-verification-x402": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://api.pennyforge.org/mcp"
      ]
    }
  }
}

.trae/mcp.json

{
  "mcpServers": {
    "sendcheck-evm-address-verification-x402": {
      "url": "https://api.pennyforge.org/mcp"
    }
  }
}

Setup

Related