Unofficial MCP server for the ZEN.com Payment Gateway: payment links, transactions, refunds.
Connect Runs on your machine
claude mcp add zen -e ZEN_API_KEY=<ZEN_API_KEY> -e ZEN_PAYWALL_SECRET=<ZEN_PAYWALL_SECRET> -e ZEN_IPN_SECRET=<ZEN_IPN_SECRET> -e ZEN_ENV=<ZEN_ENV> -- npx -y @krystiangw/[email protected]
{
"mcpServers": {
"zen": {
"command": "npx",
"args": [
"-y",
"@krystiangw/[email protected]"
],
"env": {
"ZEN_API_KEY": "<ZEN_API_KEY>",
"ZEN_PAYWALL_SECRET": "<ZEN_PAYWALL_SECRET>",
"ZEN_IPN_SECRET": "<ZEN_IPN_SECRET>",
"ZEN_ENV": "<ZEN_ENV>"
}
}
}
}
{
"mcpServers": {
"zen": {
"command": "npx",
"args": [
"-y",
"@krystiangw/[email protected]"
],
"env": {
"ZEN_API_KEY": "<ZEN_API_KEY>",
"ZEN_PAYWALL_SECRET": "<ZEN_PAYWALL_SECRET>",
"ZEN_IPN_SECRET": "<ZEN_IPN_SECRET>",
"ZEN_ENV": "<ZEN_ENV>"
}
}
}
}
{
"servers": {
"zen": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@krystiangw/[email protected]"
],
"env": {
"ZEN_API_KEY": "<ZEN_API_KEY>",
"ZEN_PAYWALL_SECRET": "<ZEN_PAYWALL_SECRET>",
"ZEN_IPN_SECRET": "<ZEN_IPN_SECRET>",
"ZEN_ENV": "<ZEN_ENV>"
}
}
}
}
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 |
|---|---|
ZEN_API_KEYRequired, secret | ZEN Terminal API Key (Authorization header) |
ZEN_PAYWALL_SECRETOptional, secret | ZEN paywall secret for request signing (required for write ops) |
ZEN_IPN_SECRETOptional, secret | ZEN IPN secret for webhook verification |
ZEN_ENVOptional | sandbox (default) or production |
Details
| Package | @krystiangw/[email protected] (NPM, stdio) |
| First published | 17 Aug 2026 |
| Last updated | 17 Aug 2026 |
| Registry name | io.github.krystiangw/zen |
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