Non-custodial Bitcoin Lightning (LDK) wallet for AI agents โ pays L402 APIs from CLI or MCP.
Connect Runs on your machine
claude mcp add saturnzap -e SZ_PASSPHRASE=<SZ_PASSPHRASE> -e SZ_MCP_MAX_SPEND_SATS=<SZ_MCP_MAX_SPEND_SATS> -- uvx saturnzap==1.4.1
{
"mcpServers": {
"saturnzap": {
"command": "uvx",
"args": [
"saturnzap==1.4.1"
],
"env": {
"SZ_PASSPHRASE": "<SZ_PASSPHRASE>",
"SZ_MCP_MAX_SPEND_SATS": "<SZ_MCP_MAX_SPEND_SATS>"
}
}
}
}
{
"mcpServers": {
"saturnzap": {
"command": "uvx",
"args": [
"saturnzap==1.4.1"
],
"env": {
"SZ_PASSPHRASE": "<SZ_PASSPHRASE>",
"SZ_MCP_MAX_SPEND_SATS": "<SZ_MCP_MAX_SPEND_SATS>"
}
}
}
}
{
"servers": {
"saturnzap": {
"type": "stdio",
"command": "uvx",
"args": [
"saturnzap==1.4.1"
],
"env": {
"SZ_PASSPHRASE": "<SZ_PASSPHRASE>",
"SZ_MCP_MAX_SPEND_SATS": "<SZ_MCP_MAX_SPEND_SATS>"
}
}
}
}
Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server runs locally, so its tools are listed by your MCP client once it starts.
Environment variables
| Name | Description |
|---|---|
SZ_PASSPHRASERequired, secret | Passphrase used to decrypt the local wallet seed. |
SZ_MCP_MAX_SPEND_SATSOptional | Hard per-request MCP amount-plus-fee ceiling; default 1000 sats. |
Details
| Package | [email protected] (PYPI, stdio) |
| First published | 25 Sep 2026 |
| Last updated | 25 Sep 2026 |
| Registry name | io.github.lqwdtech/saturnzap |
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