SaturnZap MCP Server: Install & Setup

Install SaturnZap in Claude Code

Claude Code

claude mcp add saturnzap -e SZ_PASSPHRASE=... -- uvx saturnzap

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "saturnzap": {
      "command": "uvx",
      "args": [
        "saturnzap"
      ],
      "env": {
        "SZ_PASSPHRASE": "..."
      }
    }
  }
}

Replace each ... with your own value.

Frequently asked questions

What does the SaturnZap MCP server do?

Non-custodial Bitcoin Lightning (LDK) wallet for AI agents — pays L402 APIs from CLI or MCP.

Is the SaturnZap MCP server free?

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Does SaturnZap run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add SaturnZap to Claude Code?

Run: claude mcp add saturnzap -e SZ_PASSPHRASE=... -- uvx saturnzap

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