mirrored listing x402 eip155:8453solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp

USDA FoodData Central nutrition lookup

USDA FoodData Central nutrition lookup. Two modes: search (query=cheddar cheese) returns matching foods with fdcId, description, data type, category, and brand; detail (fdcId=328637) returns the full analyzed nutrient profile — energy, protein, fats, carbohydrates, vitamins, minerals — with USDA nutrient numbers, amounts, and units (per 100 g/ml unless serving fields indicate otherwise), plus ingredients for branded foods. Filter search by dataType: Foundation and SR Legacy are lab-analyzed generic foods, Branded is the packaged-food label corpus, Survey (FNDDS) is as-consumed dishes. Authoritative USDA data covering ~400k foods — use real analyzed values instead of model-estimated nutrition facts.

3000 (raw units)

price

calls / 30d

unique payers

2026-09-02

updated

Provider

2s.io · discovered, not yet claimed by its owner

Payment (x402 accepts[])

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "3000",
    "maxTimeoutSeconds": 60
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "payTo": "TW6ntaGzvj63ZgPjszd4FCGmVTGfzv1MAYZbjYcyWhn",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "3000",
    "maxTimeoutSeconds": 60
  }
]

Output schema

{
  "bazaar": {
    "info": {
      "input": {
        "method": "GET",
        "queryParams": {
          "dataType": "Foundation",
          "limit": 5,
          "query": "cheddar cheese"
        },
        "type": "http"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "properties": {
            "method": {
              "const": "GET"
            },
            "queryParams": {
              "properties": {
                "dataType": {
                  "description": "Restrict search to one FDC data type.",
                  "enum": [
                    "Foundation",
                    "SR Legacy",
                    "Survey (FNDDS)",
                    "Branded"
                  ],
                  "type": "string"
                },
                "fdcId": {
                  "description": "FDC food id for full nutrient detail (XOR with query).",
                  "type": "integer"
                },
                "limit": {
                  "default": 10,
                  "maximum": 50,
                  "minimum": 1,
                  "type": "integer"
                },
                "page": {
                  "default": 1,
                  "minimum": 1,
                  "type": "integer"
                },
                "query": {
                  "description": "Food name to search (XOR with fdcId).",
                  "type": "string"
                }
              }
            },
            "type": {
              "const": "http"
            }
          },
          "required": [
            "type",
            "method",
            "queryParams"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  }
}

Use it

curl

curl "https://2s.io/api/nutrition/food"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

JavaScript

const res = await fetch("https://2s.io/api/nutrition/food");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

Python

import httpx
res = httpx.get("https://2s.io/api/nutrition/food")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Machine-readable

Everything on this page is also available as clean JSON at /resources/6641.json, and this resource appears in /discovery/resources and /discovery/search.