PluginBench
MCP Server

SaturnZap MCP Server

io.github.lqwdtech/saturnzap

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What is the SaturnZap MCP server?

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

How to install SaturnZap

Copy-paste configuration for popular MCP clients.

transport: stdio
Config generated by PluginBench — verify against the source before use.
Environment / auth
  • SZ_PASSPHRASE
    required
    secret

    Passphrase used to decrypt the local wallet seed.

  • SZ_MCP_MAX_SPEND_SATS

    Optional per-request spend cap for MCP L402 operations.

Claude Desktop
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "saturnzap": {
      "command": "uvx",
      "args": [
        "saturnzap"
      ],
      "env": {
        "SZ_PASSPHRASE": "<YOUR_SZ_PASSPHRASE>",
        "SZ_MCP_MAX_SPEND_SATS": "<YOUR_SZ_MCP_MAX_SPEND_SATS>"
      }
    }
  }
}
Cursor
~/.cursor/mcp.json
{
  "mcpServers": {
    "saturnzap": {
      "command": "uvx",
      "args": [
        "saturnzap"
      ],
      "env": {
        "SZ_PASSPHRASE": "<YOUR_SZ_PASSPHRASE>",
        "SZ_MCP_MAX_SPEND_SATS": "<YOUR_SZ_MCP_MAX_SPEND_SATS>"
      }
    }
  }
}
Windsurf
~/.codeium/windsurf/mcp_config.json
{
  "mcpServers": {
    "saturnzap": {
      "command": "uvx",
      "args": [
        "saturnzap"
      ],
      "env": {
        "SZ_PASSPHRASE": "<YOUR_SZ_PASSPHRASE>",
        "SZ_MCP_MAX_SPEND_SATS": "<YOUR_SZ_MCP_MAX_SPEND_SATS>"
      }
    }
  }
}
VS Code
.vscode/mcp.json
{
  "servers": {
    "saturnzap": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "saturnzap"
      ],
      "env": {
        "SZ_PASSPHRASE": "<YOUR_SZ_PASSPHRASE>",
        "SZ_MCP_MAX_SPEND_SATS": "<YOUR_SZ_MCP_MAX_SPEND_SATS>"
      }
    }
  }
}
Claude Code
claude mcp add saturnzap --env SZ_PASSPHRASE=<YOUR_SZ_PASSPHRASE> --env SZ_MCP_MAX_SPEND_SATS=<YOUR_SZ_MCP_MAX_SPEND_SATS> -- uvx saturnzap

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