SaturnZap runs on your own machine — the client starts it, so there is no endpoint to ping. 49 installs a week from pypi. Last commit 13 Aug 2026.
Non-custodial Bitcoin Lightning (LDK) wallet for AI agents — pays L402 APIs from CLI or MCP.
We read the source, 20 h ago · rules 3dff92dd89df
What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.
result = subprocess.run( # noqa: S603
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add saturnzap -- uvx saturnzap
{
"mcpServers": {
"saturnzap": {
"args": [
"saturnzap"
],
"command": "uvx"
}
}
}
[mcp_servers.saturnzap]
command = "uvx"
args = ["saturnzap"]
{
"mcpServers": {
"saturnzap": {
"args": [
"saturnzap"
],
"command": "uvx"
}
}
}
{
"mcpServers": {
"saturnzap": {
"args": [
"saturnzap"
],
"command": "uvx"
}
}
}
This one needs environment variables set before it will start:
SZ_PASSPHRASE (Passphrase used to decrypt the local wallet seed.), SZ_MCP_MAX_SPEND_SATS (Optional per-request spend cap for MCP L402 operations.).
The author declared them in the registry entry; get the values from the project itself.
Non-custodial x402 payment MCP server for AI agents. Wallets and payments on 17 chains.
MCP server for L402-protected APIs via Bitcoin Lightning. Pay-per-call AI tools in sats.
Give AI agents a Bitcoin wallet with Lightning Network payments and L402 support.
Give AI agents a Bitcoin wallet with Lightning Network payments and L402 support.
Non-custodial x402 payment MCP server for AI agents. Wallets, payments, and commerce on 17 chains.
Xenarch — x402 MCP server for AI agent payments. Non-custodial, USDC on Base L2.
Self-custodial x402 wallet for AI agents: pay any service in USDC or $THREE from your own key.
Non-custodial x402 payments for AI agents. Sign locally, spend limits, Base network.
Answers built from our own checks of this server.