P402 sits between your AI application and every LLM provider. It handles intelligent multi-provider routing (cost / quality / speed / balanced), on-chain micropayment settlement via the x402…
@p402/mcp Server is an MCP project maintained in the z333q/p402-protocol repository. The maintainer describes its purpose as “P402 sits between your AI application and every LLM provider. It handles intelligent multi-provider routing (cost / quality / speed / balanced), on-chain micropayment settlement…”. Read the project documentation for the complete scope.
The documented npm package is @p402/mcp-server. The configuration below comes from the maintainer’s example; adapt its paths and account values to your environment.
The example declares P402_API_KEY. Secret-looking values have been replaced with placeholders. Required and optional labels are shown only when the documentation states them.
Project documentation · Repository · Discovery listing. This profile records the public documentation checked on 2026-10-08.
{
"mcpServers": {
"p402": {
"command": "npx",
"args": [
"-y",
"@p402/mcp-server"
],
"env": {
"P402_API_KEY": "YOUR_P402_API_KEY"
}
}
}
}From the project documentation. Replace placeholders and example paths before connecting.
| Variable | Description | Required |
|---|---|---|
| P402_API_KEY | Declared in the maintainer’s client configuration. | Check documentation |
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