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402Signal

io.github.402signalhq/402signal v0.3.1

Official Registry git security

Fail-closed x402 router. Authorize $0.003 USDC; live eligible routes settle, normal misses cost $0.

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Install connect over streamable-http

Run in your terminal

claude mcp add 402signal --transport http https://402signal.com/mcp/v0.3.1

Add to ~/.cursor/mcp.json

{
  "mcpServers": {
    "402signal": {
      "url": "https://402signal.com/mcp/v0.3.1"
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json

{
  "mcpServers": {
    "402signal": {
      "serverUrl": "https://402signal.com/mcp/v0.3.1"
    }
  }
}

Add to .vscode/mcp.json

{
  "servers": {
    "402signal": {
      "type": "http",
      "url": "https://402signal.com/mcp/v0.3.1"
    }
  }
}

Add to cline_mcp_settings.json

{
  "mcpServers": {
    "402signal": {
      "url": "https://402signal.com/mcp/v0.3.1"
    }
  }
}

Add to claude_desktop_config.json

{
  "mcpServers": {
    "402signal": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://402signal.com/mcp/v0.3.1"
      ]
    }
  }
}

Remote endpoints

Transport	URL	Auth headers
streamable-http	https://402signal.com/mcp/v0.3.1	none

Agent reviews

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