Transport-safe, in-band payment extension for MCP servers (MCP Payments Extension / MPX). Rail-agnostic core with pluggable settlement rails.
Quick Install
Copy the config for your editor. Some servers may need additional setup — check the README.
Add to claude_desktop_config.json:
{
"mcpServers": {
"mcp-payments": {
"command": "npx",
"args": [
"-y",
"overdraft-protocol/mcp-payments"
]
}
}
}
Run in terminal:
claude mcp add mcp-payments npx -y overdraft-protocol/mcp-payments
Add to .cursor/mcp.json:
{
"mcpServers": {
"mcp-payments": {
"command": "npx",
"args": [
"-y",
"overdraft-protocol/mcp-payments"
]
}
}
}