MCP Nupay runs on your own machine — the client starts it, so there is no endpoint to ping. 57 installs a week from npm. Last commit 27 Sep 2026.
MCP server for NuPay — Nubank merchant checkout: Pix + wallet one-click for 100M+ BR users
Nothing serious here today
Today is the operative word: we check MCP Nupay every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Connect this server
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 mcp-nupay -e 'NUPAY_MERCHANT_KEY=<NUPAY_MERCHANT_KEY>' -e 'NUPAY_MERCHANT_TOKEN=<NUPAY_MERCHANT_TOKEN>' -- npx -y @codespar/mcp-nupay{
"mcpServers": {
"mcp-nupay": {
"command": "npx",
"args": [
"-y",
"@codespar/mcp-nupay"
],
"env": {
"NUPAY_MERCHANT_KEY": "<NUPAY_MERCHANT_KEY>",
"NUPAY_MERCHANT_TOKEN": "<NUPAY_MERCHANT_TOKEN>"
}
}
}
}[mcp_servers.mcp-nupay]
command = "npx"
args = ["-y", "@codespar/mcp-nupay"]
env = { NUPAY_MERCHANT_KEY = "<NUPAY_MERCHANT_KEY>", NUPAY_MERCHANT_TOKEN = "<NUPAY_MERCHANT_TOKEN>" }{
"mcpServers": {
"mcp-nupay": {
"command": "npx",
"args": [
"-y",
"@codespar/mcp-nupay"
],
"env": {
"NUPAY_MERCHANT_KEY": "<NUPAY_MERCHANT_KEY>",
"NUPAY_MERCHANT_TOKEN": "<NUPAY_MERCHANT_TOKEN>"
}
}
}
}{
"servers": {
"mcp-nupay": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@codespar/mcp-nupay"
],
"env": {
"NUPAY_MERCHANT_KEY": "<NUPAY_MERCHANT_KEY>",
"NUPAY_MERCHANT_TOKEN": "<NUPAY_MERCHANT_TOKEN>"
}
}
}
}Put your own values in place of
<NUPAY_MERCHANT_KEY> (NuPay X-Merchant-Key issued to your merchant), <NUPAY_MERCHANT_TOKEN> (NuPay X-Merchant-Token issued to your merchant).
The author’s registry entry marks them as required.
Optional settings from the registry entry, left out of the block above:
NUPAY_CLIENT_ID (OAuth2/CIBA client_id for pre-authorized (recurrence) flows. Optional unless using backchannel_start / backchannel_complete), NUPAY_CLIENT_SECRET (OAuth2/CIBA client_secret for pre-authorized flows. Optional unless using backchannel_* tools), NUPAY_ENV (sandbox | production. Defaults to sandbox. Drives both checkout API and auth base URLs).
Alternatives to MCP Nupay
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MCP Nupay — questions
Answers built from our own checks of this server.