# NutriRef MCP server

> Provides structured USDA nutrition data to AI agents via pay-per-call micropayments using the x402 protocol.

- Repository: https://github.com/Younghef/nutriref-api
- Page: https://hostedmcp.org/servers/younghef/nutriref-api
- Transport: stdio
- Stars: 1
- License: MIT
- Latest version: 0.2.3

## Environment variables

| Name | Required | Secret | Description |
|---|---|---|---|
| `NUTRIREF_BASE_URL` | no | no |  |
| `PAYER_PRIVATE_KEY` | no | no |  |

## FAQ

### How much does it cost to use NutriRef?

Costs range from $0.001 to $0.005 in USDC per request depending on the endpoint used.

### Do I need an API key or human authentication to use this?

No, the service uses the x402 micropayment protocol which requires no signup or API keys.