payware runs on your own machine — the client starts it, so there is no endpoint to ping. 325 installs a week from npm. Last commit 7 Nov 2026.
payware A2A payments API for merchants, ISVs and payment institutions
Nothing serious here today
Today is the operative word: we check payware 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-server -e 'PAYWARE_PARTNER_ID=<PAYWARE_PARTNER_ID>' -e 'PAYWARE_SANDBOX_PRIVATE_KEY_PATH=<PAYWARE_SANDBOX_PRIVATE_KEY_PATH>' -- npx -y @payware/mcp-server{
"mcpServers": {
"mcp-server": {
"command": "npx",
"args": [
"-y",
"@payware/mcp-server"
],
"env": {
"PAYWARE_PARTNER_ID": "<PAYWARE_PARTNER_ID>",
"PAYWARE_SANDBOX_PRIVATE_KEY_PATH": "<PAYWARE_SANDBOX_PRIVATE_KEY_PATH>"
}
}
}
}[mcp_servers.mcp-server]
command = "npx"
args = ["-y", "@payware/mcp-server"]
env = { PAYWARE_PARTNER_ID = "<PAYWARE_PARTNER_ID>", PAYWARE_SANDBOX_PRIVATE_KEY_PATH = "<PAYWARE_SANDBOX_PRIVATE_KEY_PATH>" }{
"mcpServers": {
"mcp-server": {
"command": "npx",
"args": [
"-y",
"@payware/mcp-server"
],
"env": {
"PAYWARE_PARTNER_ID": "<PAYWARE_PARTNER_ID>",
"PAYWARE_SANDBOX_PRIVATE_KEY_PATH": "<PAYWARE_SANDBOX_PRIVATE_KEY_PATH>"
}
}
}
}{
"servers": {
"mcp-server": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@payware/mcp-server"
],
"env": {
"PAYWARE_PARTNER_ID": "<PAYWARE_PARTNER_ID>",
"PAYWARE_SANDBOX_PRIVATE_KEY_PATH": "<PAYWARE_SANDBOX_PRIVATE_KEY_PATH>"
}
}
}
}Put your own values in place of
<PAYWARE_PARTNER_ID> (Partner ID from the payware dashboard), <PAYWARE_SANDBOX_PRIVATE_KEY_PATH> (Path to the RSA private key for the sandbox).
The author’s registry entry marks them as required.
Optional settings from the registry entry, left out of the block above:
PAYWARE_PARTNER_TYPE (Partner role: merchant, isv or payment_institution), PAYWARE_PRODUCTION_PRIVATE_KEY_PATH (Path to the RSA private key for production), PAYWARE_OAUTH_CLIENT_ID (OAuth2 client ID (ISV partners only)), PAYWARE_OAUTH_CLIENT_SECRET (OAuth2 client secret (ISV partners only)), PAYWARE_MCP_TOOLSETS (Comma-separated toolsets to load, e.g. products,placements. Unset loads every tool. Toolsets: auth, transactions, products, placements, data, logs, poi, shops, onboarding, utils).
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payware — questions
Answers built from our own checks of this server.